X-Junk-Score: 0 [] X-Cloudmark-Score: 0 [] X-Cloudmark-Analysis: v=2.3 cv=PbaBeRpd c=1 sm=1 tr=0 a=Vky8LIrW2psuDij7SB923Q==:117 a=x7bEGLp0ZPQA:10 a=xXDCcK6TKBsA:10 a=y4yBn9ojGxQA:10 a=pGLkceISAAAA:8 a=Ia-xEzejAAAA:8 a=RG6hcgD4AAAA:8 a=fR6g6WPwAAAA:8 a=I_RhBFp3Mh6ukhRucYoA:9 a=Hh_vZhFhqrQ06MKJ:21 a=xDcFFyAItC6YSvw0:21 a=QEXdDO2ut3YA:10 a=8wVZyyJBURlrl2nTUPoA:9 a=yJ9drdhrc63Oxf28:21 a=LUfi5qnYWj5djNvN:21 a=wGSxy2YqmRlCXMCC:21 a=Urk15JJjZg1Xo0ryW_k8:22 a=N6I4LDFSjv0JWTRmzZqO:22 a=pVye9tYEF4-vSOQs7cMh:22 From: "Todd Bartrim bartrim@gmail.com" Received: from mail-oi1-f174.google.com ([209.85.167.174] verified) by logan.com (CommuniGate Pro SMTP 6.2.14) with ESMTPS id 605679 for flyrotary@lancaironline.net; Wed, 05 Aug 2020 04:16:58 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.167.174; envelope-from=bartrim@gmail.com Received: by mail-oi1-f174.google.com with SMTP id l204so10103922oib.3 for ; Wed, 05 Aug 2020 01:16:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=7M+7dTp54ViUDlslKMSp44eXWjuBQuevx8AeRPJ/FNI=; b=gFC1IQkB2uXhE4OAvoaEih2w9pmmY60sgPiQqivQx1CNVQVVWDRFf+Sa1nOWVE0AfA /41y75FqlJweF/lPE/fqDX7Y2vC4xAVo/PGH9cG5liB1Hz5Eijt6QJzmaYaA4PVv2Yk8 E22eI2dCKNY2eyJjhn15suVTTdajPaiOqWFDy6BlZwjPIpnzNbqNm+62aT7IB3LAmuDH MX0ay4y2OmT1Qd0HhsMXgm9sURCrx2pL2RtDQpf6YYs9NF/tXZwBaGpVPt1BlrXUA420 LxvSN5rfaMnWi3R2eRirZXCgh+3ucYDNX0MbJkq12vLrNqp3rFIWC98VnnIwj462aZXR AA9w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to; bh=7M+7dTp54ViUDlslKMSp44eXWjuBQuevx8AeRPJ/FNI=; b=MvJ0/ZWAzDJnQHzZ9o5LNLmca29HUvY3Ik8iI3FQ61y5MKnoe0KVGB3g08GrBjvhV9 kqqYMYZFjHrFSWfHUlBVC2/c4VcpnTeJ/pjvJEtuML8VCYY0WcaffdnV0nrp12j5Ujt/ wWGg8zjcLxWgfNksg/slCJ865I53KMsU4MdFirxGC2RoMnlAi2uiKNml3Hdt4DQ+a/l/ CZP9SOrPRtfrtrxXHmbdDLpHfVVAvb5JeOO2SP3rV6JPpRbG7b6iV4pgPR0m8sbRNgP5 okvUe41kwaZeelflnw04EhIjnBTHSZn1u0nsfM8QTFbzhCWCNxFE8ahoiuH4BaathExZ D8Jw== X-Gm-Message-State: AOAM531tXeGOyAtARvEBSt2f9D9u9lAYRXDpNZjHVpG60g8otEagc7zQ xX9rBXGrRS8Yhmi+bt9QNnz7CkpOrDih+9bVd5t2 X-Google-Smtp-Source: ABdhPJyIvTtV6j1H2zXLzlIojRaQrsED7ig8t6d39+pYRcy/sGoJ7FwBIVbXHaZwjBHR2m4fNvGe25gyka+l70lbNSc= X-Received: by 2002:a54:410a:: with SMTP id l10mr1866011oic.6.1596615401963; Wed, 05 Aug 2020 01:16:41 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: Date: Wed, 5 Aug 2020 01:16:29 -0700 Message-ID: Subject: Re: [FlyRotary] Re: Turbos for 13b's in aircraft To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary="000000000000e0853b05ac1cfde6" --000000000000e0853b05ac1cfde6 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hi Dave; Another question for you about your wastegate. Are you using the wastegate that he provided? And what pressure is the spring? I told him I would rather use my own wastegate, but he didn't seem to know what I was talking about when I told him it was a piston type rather than a diaphragm and kept insisting that I'd want to use his with a 14psi spring. I also want the lowest possible spring pressure as I have a TurboSmart electronic boost controller which can give higher pre-programed pressures at the touch of a button, by venting the boost pressure signal to the actuator. But it can't give any pressure lower than what the spring pressure is. One of my considerations for lower max boost pressure is that my engine was not originally turbocharged so I have the high compression 9.4:1 rotors= . Fot that reason I've always been conservative and tried to limit my boost to 6psi, which is my current spring pressure. When my original diaphragm actuator burst, I saw about 16 psi without detonation, and it was fun, but not something I want to subject the engine to regularly. Thanks, Todd On Tue., Aug. 4, 2020, 23:12 Todd Bartrim bartrim@gmail.com, < flyrotary@lancaironline.net> wrote: > Hi Dave; > I talked with BNR today and I'm not sure he really got what I was > looking for as he started by saying that a "stage 3" is what I should hav= e > then said probably a "stage 1" would be good for me. > But other than that I did like what he has to offer. However I'm > thinking that even though I don't feel that I have the demands that you d= o, > if I'm going to go this far, I'm going all the way and might as well go f= or > the "stage 4". > The "stage 4" involves machining the exhaust housing to make room for = a > larger turbine wheel while the others don't. So I wonder if I could sourc= e > those other items and do this myself. But as I don't even know enough abo= ut > my starting point it's not very realistic to find the finish line without= a > significant investment in time. So for the low price of $1amu, I can have > more than what I need. I'm also convinced that paying the $0.1amu core > charge is good value when you have to deal with international shipping. > So I guess I just need someone to give me a little shove to push me over > the edge and call him back with my visa#. > If he had an "add to cart" button on his website I think we'd be past > this point after a few beers watching playoff hockey. > > Todd > (The only thing stranger than watching hockey in August, is that > there is less fans than my beer league games) > > > > On Tue., Aug. 4, 2020, 17:03 12348ung@gmail.com, < > flyrotary@lancaironline.net> wrote: > >> Todd, >> >> Thanks for that as was exactly what I was thinking. Hav= e >> tried many workshops in OZ and either ignorant or don=E2=80=99t want the= job. >> Freight listed to the US and back can be $300 each way. Makes the $100 >> cheap. Will contact them, and see what eventuates as way down the path = of >> fitting the stock turbo, really do not want to start again. Done that t= oo >> many times before. >> >> Thanks, Neil. >> >> >> >> *From:* Rotary motors in aircraft >> *Sent:* Wednesday, August 5, 2020 9:56 AM >> *To:* Rotary motors in aircraft >> *Subject:* [FlyRotary] Re: Turbos for 13b's in aircraft >> >> >> >> Hi Neil; >> >> I talked to BNR today on the phone about my needs and wants. He said i= t >> was about a 3 week turnaround time on the turbo, so I said maybe later t= his >> fall. So he suggested that for a $100 dollar core charge, he could just = get >> one there and modify it for me and I can keep this one. That's kinda a >> no-brainer, because it would cost me that much to ship mine down to him. >> Then I'm only paying shipping one way. >> >> So for you that would make even more sense. >> >> Todd Bartrim >> >> >> >> >> >> On Tue, Aug 4, 2020 at 3:41 PM 12348ung@gmail.com < >> flyrotary@lancaironline.net> wrote: >> >> Dave and all, >> >> Finally great advice that I cannot get >> anywhere else as mention =E2=80=9CAircraft=E2=80=9D and the phone line g= oes dead. The oil >> cut off is great as well for I have personal experience with a turbo >> failure in a truck =E2=80=93 you would not believe the amount of oil tha= t can fit >> into an exhaust! That took more time to clean than replacing the turbo-= - >> all 5 gallons of it. >> >> Will see what I can source here in OZ as to a turbo , as the freight >> both ways to the US is murderous. Happy with the mod cost which will b= e >> $1300 Oz dollars. Still a cheap turbo. Freight I am guessing will be >> another $300 at least. >> >> >> >> Neil. >> >> >> >> *From:* Rotary motors in aircraft >> *Sent:* Tuesday, August 4, 2020 4:42 PM >> *To:* Rotary motors in aircraft >> *Subject:* [FlyRotary] Re: Turbos for 13b's in aircraft >> >> >> >> Hi Dave; >> >> What did you use for a shut-off valve for your oil? >> >> >> >> Todd Bartrim >> >> >> >> >> >> On Mon, Aug 3, 2020 at 8:16 PM David Leonard wdleonard@gmail.com < >> flyrotary@lancaironline.net> wrote: >> >> Kelly, you are right. I even mentioned the TO4-E50 in my post above. >> >> >> >> Mark, its not about the horsepower so much as keeping the turbo in its >> proper operating environment for the conditions you are going to be >> giving. You mentioned "300-400hp" in your post, but it seem that perhap= s >> you dont have a specific target in mind. Thats fine, but you are not go= ing >> to land much above 180hp unless you have a specific target and a plan to >> achieve it. >> >> >> >> The stock hitachi you mention is a T3 turbine. It and the 2nd gen 13b i= t >> ran with were only rated at 200hp in the car - and only for short bursts= . >> I did what you are thinking about doing. I ran the stock turbo to see w= hat >> I would get. I was making a little over 200hp and the turbo lasted for >> about 70 flight hours. Looking at its turbo map, the impeller was runni= ng >> over 100k RPM. It's very surprising it lasted 70 hours. It probably on= ly >> lasted that long because most of the time I was not running full power. >> The turbo imploded on my first long cross country. I was almost home an= d >> decided to let it loose a little. I was running about 30" MAP at 17.5k >> altitude. It lasted about 30 min doing that. >> >> >> >> My advice, if you want to experiment with turbos, is to install a >> shut-off valve on the oil feed line to the turbo. I now have one in my >> installation. When the turbo goes it will be hemorrhaging oil into the >> exhaust. Without a shut-off valve, you will run out of oil before you c= an >> get very far. With the valve, you can continue to fly n/a as long as yo= u >> need. >> >> >> >> Play around with that spreadsheet I sent you. Make up numbers that are >> realistic for how much boost at what altitude you realistically want to >> fly, then find a turbo to fit those parameters. You can cut and paste >> various turbo maps onto the spreadsheet. They are available on the >> internet but most of the relevant ones are there on the spreadsheet. Tr= y >> to keep the turbo in its center island of efficiency while staying away >> from the 'surge' line. Also, keep the RPM under 60k if possible. You w= ill >> find that Kellys suggestion of the TO4-E50 is a good choice and readily >> available. You will also see that the stock T3 does not belong in an >> aircraft. >> >> >> >> Best, >> >> Dave Leonard >> >> >> >> On Mon, Aug 3, 2020 at 5:19 PM Kelly Troyer keltro@gmail.com < >> flyrotary@lancaironline.net> wrote: >> >> Group, >> >> I have no running experience yet but when I purchased my turbo I >> settled on a "Turbonetics" TO4-E50 with a 1.15 a/r turbine housing so as= to >> not get into >> >> any overspeed problems..........FWIW >> >> >> >> http://www.turboneticsinc.com/industrial/product/turbochargers-0 >> >> >> >> Kelly troyer >> >> >> >> On Mon, Aug 3, 2020 at 4:51 PM 12348ung@gmail.com < >> flyrotary@lancaironline.net> wrote: >> >> Dave, >> >> Just how much extra Hp do you think you got withy the >> upgraded Turbo? I will be happy with 250 to 300 HP from the stock >> Hitachi. Am I off with the fairys having this expectation? >> >> Neil. >> >> >> >> *From:* Rotary motors in aircraft >> *Sent:* Monday, August 3, 2020 4:07 AM >> *To:* Rotary motors in aircraft >> *Subject:* [FlyRotary] Re: Turbos for 13b's in aircraft >> >> >> >> James, >> >> I had my stock housing upgraded to TO4 by BNR Supercars. They also have >> options for the Renisis. http://bnrsupercars.com/ Cost is $950 for the >> level 4 upgrade. Makes a nice tight fit. I had a big discussion about >> Turbo maps that you can find in the archives. I settled on a TO4-H or >> TO4-E50 to top out around 350hp at sea level. >> >> >> >> Attached is a turbo excel spreadsheet that you can use to evaluate >> various parameters in selecting a turbo. >> >> >> >> Dave Leonard >> >> >> >> On Sun, Aug 2, 2020 at 12:07 AM 12348ung@gmail.com < >> flyrotary@lancaironline.net> wrote: >> >> James, >> >> 2 flying that I know of =E2=80=93 Todd Bartrim and Dave leonnard. Th= ink they >> have the standard RX7 Hitachi turbo. Just been around the world trying = to >> get an affordable turbo for my renesis which does not exist if you talk= to >> drag racers etc., Quotes between $4500 and $6500. Bought 2 hitachi tur= bos >> for $125 and one looks set to go while the other will need bearings. >> >> There was an offer of one in south Africa for freight >> only. Would be a bargain. Just hooking mine up now, but as usual much = to >> go that I have not factored as usual. Finally found an intercooler that >> may fit. >> >> Best, Neil. >> >> >> >> >> >> *From:* Rotary motors in aircraft >> *Sent:* Sunday, August 2, 2020 11:48 AM >> *To:* Rotary motors in aircraft >> *Subject:* [FlyRotary] Turbos for 13b's in aircraft >> >> >> >> Does anyone out there have any recommendations for a turbo (brand and >> size) for a 13b in an aircraft? 300-400 hp range. Reasons or experience = is >> appreciated! Auto racers have their needs but are different from >> aircraft... or so I've heard. My 13b's are nearing the decision stage fo= r >> turbos. Thanks, James Whitehurst >> >> >> >> >> --000000000000e0853b05ac1cfde6 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hi Dave;
=C2=A0 Another question for you= about your wastegate. Are you using the wastegate that he provided? And wh= at pressure is the spring?
=C2=A0 I told him I would= rather use my own wastegate, but he didn't seem to know what I was tal= king about when I told him it was a piston type rather than a diaphragm and= kept insisting that I'd want to use his with a 14psi spring.
I also want the lowest possible spring pressure as I have a T= urboSmart electronic boost controller which can give higher pre-programed p= ressures at the touch of a button, by venting the boost pressure signal to = the actuator. But it can't give any pressure lower than what the spring= pressure is.
=C2=A0 One of my considerations for lo= wer max boost pressure is that my engine was not originally turbocharged so= I have the high compression 9.4:1 rotors.
=C2=A0 Fo= t that reason I've always been conservative and tried to limit my boost= to 6psi, which is my current spring pressure.
=C2= =A0 When my original diaphragm actuator burst, I saw about 16 psi without d= etonation, and it was fun, but not something I want to subject the engine t= o regularly.

Thanks, Tod= d



On Tue., Aug= . 4, 2020, 23:12 Todd Bartrim bartrim@= gmail.com, <flyrotary= @lancaironline.net> wrote:
<= div dir=3D"auto">Hi Dave;
=C2=A0 =C2=A0I talked with BNR t= oday and I'm not sure he really got what I was looking for as he starte= d by saying that a "stage 3" is what I should have then said prob= ably a "stage 1" would be good for me.
=C2= =A0 But other than that I did like what he has to offer. However I'm th= inking that even though I don't feel that I have the demands that you d= o, if I'm going to go this far, I'm going all the way and might as = well go for the "stage 4".
=C2=A0 =C2=A0Th= e "stage 4" involves machining the exhaust housing to make room f= or a larger turbine wheel while the others don't. So I wonder if I coul= d source those other items and do this myself. But as I don't even know= enough about my starting point it's not very realistic to find the fin= ish line without a significant investment in time. So for the low price of = $1amu, I can have more than what I need. I'm also convinced that paying= the $0.1amu core charge is good value when you have to deal with internati= onal shipping.=C2=A0
So I guess I just need someone = to give me a little shove to push me over the edge and call him back with m= y visa#.
=C2=A0 If he had an "add to cart"= button on his website I think we'd be past this point after a few beer= s watching playoff hockey.

=C2=A0Todd
=C2=A0 =C2=A0 =C2=A0(The only thing st= ranger than watching hockey in August, is that there is less fans than my b= eer league games)



On Tue., Aug. 4, 2020, 17:03 12348ung@gmail.com, <flyro= tary@lancaironline.net> wrote:

Todd,

=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Thanks for that as was exactly w= hat I was thinking.=C2=A0 Have tried many workshops in OZ and either ignora= nt or don=E2=80=99t want the job.=C2=A0 Freight listed to the US and back c= an be $300 each way.=C2=A0 Makes the $100 cheap.=C2=A0 Will contact them, a= nd see what eventuates as way down the path of fitting the stock turbo, rea= lly do not want to start again.=C2=A0 Done that too many times before.

Thanks,=C2= =A0 Neil.

=C2=A0

From:<= /b> Rotary motors in aircraft <flyrotary@lancaironli= ne.net>
Sent: Wednesday, August 5, 2020 9:56 AM
To:= Rotary motors in aircraft <flyrotary@lancaironl= ine.net>
Subject: [FlyRotary] Re: Turbos for 13b's in = aircraft

=C2=A0=

Hi Neil;

=C2=A0 I talked to BNR today on the phone about my needs and wan= ts. He said it was about a 3 week turnaround time on the turbo, so I said m= aybe later this fall. So he suggested that for a $100 dollar core charge, h= e could just get one there and modify it for me and I can keep this one. Th= at's kinda a no-brainer, because it would cost me that much to ship min= e down to him. Then I'm only paying shipping one way.

=

=C2=A0 =C2=A0So for you that would make e= ven more sense.=C2=A0

Todd Bartrim

=C2=A0

= =C2=A0

On Tue, Aug 4, 202= 0 at 3:41 PM 12348ung@gmail.com <flyr= otary@lancaironline.net> wrote:

Dave and all,

=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Finally great advice th= at I cannot get anywhere else as mention =E2=80=9CAircraft=E2=80=9D and the= phone line goes dead.=C2=A0 The oil cut off is great as well for I have pe= rsonal experience with =C2=A0a turbo failure in a truck =E2=80=93 you would= not believe the amount of oil that can fit into an exhaust!=C2=A0 That too= k more time to clean than replacing the turbo-- all 5 gallons of it.=C2=A0 =

=C2=A0= =C2=A0Will see what I can source here in OZ =C2=A0as to a turbo , as the fr= eight both ways to the US=C2=A0 is murderous.=C2=A0 Happy with the mod cost= which will be $1300 Oz dollars.=C2=A0 Still a cheap turbo.=C2=A0 Freight I= am guessing will be another $300 at least.

=C2=A0

Neil.

=C2=A0

From: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Tuesday, = August 4, 2020 4:42 PM
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: [FlyRot= ary] Re: Turbos for 13b's in aircraft

=C2=A0

Hi Dave;=

=C2=A0 What did you use for a= shut-off valve for your oil?

=C2=A0

Todd Bartrim

= =C2=A0

=C2=A0=

On Mon, Aug 3, 2020 at 8:16 PM Dav= id Leonard wdleonard@gmail.com <flyr= otary@lancaironline.net> wrote:

Kelly, you are right.=C2=A0 I even mentioned t= he TO4-E50 in my post above.

= =C2=A0

Mark, its not abo= ut the horsepower so much as keeping the turbo in its proper operating envi= ronment for the conditions you are going to be giving.=C2=A0 You mentioned = "300-400hp" in your post, but it seem that perhaps you dont=C2=A0= have a specific=C2=A0target in mind.=C2=A0 Thats fine, but you are not goin= g to land much above 180hp unless you have a specific target and a plan to = achieve it.=C2=A0=C2=A0

= =C2=A0

The stock hitachi= you mention is a T3 turbine.=C2=A0 It and the 2nd gen 13b it ran with were= only rated at 200hp in the car - and only for short bursts.=C2=A0 I did wh= at you are thinking about doing.=C2=A0 I ran the stock turbo to see what I = would get.=C2=A0 I was making a little over 200hp and the turbo lasted for = about 70 flight hours.=C2=A0 Looking=C2=A0at its turbo map, the impeller wa= s running over 100k RPM.=C2=A0 It's very surprising it lasted 70 hours.= =C2=A0 It probably only lasted that long because most of the time I was not= running full power.=C2=A0 The turbo imploded on my first long cross countr= y.=C2=A0 I was almost home and decided to let it loose a little.=C2=A0 I wa= s running=C2=A0about 30" MAP at 17.5k altitude.=C2=A0 It lasted about = 30 min doing that.

=C2= =A0

My advice, if you wa= nt to experiment with turbos, is to install a shut-off valve on the oil fee= d line to the turbo.=C2=A0 I now have one in my installation.=C2=A0 When th= e turbo=C2=A0goes it will be hemorrhaging=C2=A0oil into the exhaust.=C2=A0 = Without a shut-off valve, you will run out of oil before you can get very f= ar.=C2=A0 With the valve, you can continue to fly n/a as long as you need.<= u>

=C2=A0

=

Play around with that spreadsheet I sent = you.=C2=A0 Make up numbers that are realistic for how much boost at what al= titude you realistically=C2=A0want to fly, then find a turbo to fit those p= arameters.=C2=A0 You can cut and paste various turbo maps onto the spreadsh= eet.=C2=A0 They are available on the internet but most of the relevant=C2= =A0ones are there on the spreadsheet.=C2=A0 Try to keep the turbo in its ce= nter island of efficiency while staying away from the 'surge' line.= =C2=A0 Also, keep the RPM under 60k if possible.=C2=A0 You will find that K= ellys suggestion of the TO4-E50 is a good choice and readily available.=C2= =A0 You will also see that the stock T3 does not belong in an aircraft.<= /u>

=C2=A0

Best,

Dave Leonard

=C2=A0

On Mon, Aug 3= , 2020 at 5:19 PM Kelly Troyer keltro@gmail.com <flyrotary@lancaironline.net> wrote:

Group,

<= div>

=C2=A0 =C2=A0I have no running experience yet bu= t when I purchased my turbo I settled on a "Turbonetics" TO4-E50 = with a 1.15 a/r turbine housing so as to not get into=C2=A0

any overspeed problems..........FWIW=

=C2=A0

On Mon, Aug 3, 2020 at 4:51 PM 12348ung@gmail= .com <flyrotary@lancaironline.net> wrote:=

Dave,

=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Just how much extra Hp do you think you g= ot withy the upgraded Turbo?=C2=A0 I will be happy with 250 to 300 HP from = the stock Hitachi.=C2=A0 Am I off with the fairys having this expectation?<= /span>

Neil.

=C2=A0

=C2=A0

<= p class=3D"MsoNormal">James,

I= had my stock housing upgraded to TO4 by BNR Supercars.=C2=A0 They also hav= e options for the Renisis.=C2=A0http://bnrsupercars.com/=C2= =A0Cost is $950 for the level 4 upgrade.=C2=A0 Makes a nice tight fit.=C2= =A0 I had a big discussion about Turbo maps that you can find in the archiv= es.=C2=A0 I settled on a TO4-H or TO4-E50 to top out around 350hp at sea le= vel.

=C2=A0

Attached is a turbo excel spreadshee= t that you can use to evaluate various parameters in selecting a turbo.<= /u>

=C2=A0

Dave Leonard

=C2=A0

On Sun, Aug 2, 2020 at 12:07 AM 12348ung@gmail.com <flyrotary@lancaironline.net> wrote:<= /p>

James,

=C2=A0 2 flying that I know of =E2=80=93 Todd= =C2=A0 Bartrim and Dave leonnard.=C2=A0 Think they have the standard RX7 Hi= tachi turbo.=C2=A0 Just been around the world trying to get an affordable= =C2=A0 turbo for my renesis which does not exist if you talk to drag racers= etc.,=C2=A0 Quotes between $4500 and $6500.=C2=A0 Bought 2 hitachi turbos = for $125 and one looks set to go while the other will need bearings.=

=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0 There was an offer of one in south Africa for freight only.=C2=A0 Would= be a bargain.=C2=A0 Just hooking mine up now, but as usual much to go that= I have not factored as usual.=C2=A0 Finally found an intercooler that may = fit.

Be= st,=C2=A0 Neil.

=C2=A0

=C2=A0

<= b>From: Rotary motors in aircraft <flyrotary@lan= caironline.net>
Sent: Sunday, August 2, 2020 11:48 AM
= To: Rotary motors in aircraft <flyrotary@lanc= aironline.net>
Subject: [FlyRotary] Turbos for 13b's i= n aircraft

=C2=A0

Does anyone out there have any recommenda= tions for a turbo (brand and size) for a 13b in an aircraft? 300-400 hp ran= ge. Reasons or experience is appreciated! Auto racers have their needs but = are different from aircraft... or so I've heard. My 13b's are neari= ng the decision stage for turbos. Thanks, James Whitehurst


=C2=A0

<= /div>
--000000000000e0853b05ac1cfde6--