Thinking of Rear/mid mount turbos.
#1
Rennlist Member
Thread Starter
Thinking of Rear/mid mount turbos.
Some background and info:
http://www.junkyardturbos.com/
1) Pipes to the turbo, past the exhaust housing, and out the back.
2) Pipes from an intake at the turbo, but in clean area, and then up to the intake.
3) Oil lines to the turbo, restrictor, and a pump to return the oil from the turbo to the engine oil pan
4) Blow off valve by intake
6) Wastegate
7) Some way to run engine in boost (https://rennlist.com/forums/928-foru...wesome-11.html or use MSIII (Megasquirt)
Seems sort of simple. In my case, I would run ethanol, so I would forgo the complexities of an inter cooler. No, its not perfect - Perfect is what I am doing on my 78, and that takes a long time. in 2013, that car will be in its 10th year of production.
http://www.junkyardturbos.com/
1) Pipes to the turbo, past the exhaust housing, and out the back.
2) Pipes from an intake at the turbo, but in clean area, and then up to the intake.
3) Oil lines to the turbo, restrictor, and a pump to return the oil from the turbo to the engine oil pan
4) Blow off valve by intake
6) Wastegate
7) Some way to run engine in boost (https://rennlist.com/forums/928-foru...wesome-11.html or use MSIII (Megasquirt)
Seems sort of simple. In my case, I would run ethanol, so I would forgo the complexities of an inter cooler. No, its not perfect - Perfect is what I am doing on my 78, and that takes a long time. in 2013, that car will be in its 10th year of production.
#2
Rennlist Member
Go for it, rear turbo's are the bomb in my book!
There is a gentleman on the boards, or two now and lag is a urban myth! They run strong and hard. Plus they sound really cool!
There is a gentleman on the boards, or two now and lag is a urban myth! They run strong and hard. Plus they sound really cool!
#3
Three Wheelin'
Thanks for the link lots of cool info!
I thought rear turbo's were an urban myth!
I thought rear turbo's were an urban myth!
#6
Racer
Join Date: Jan 2009
Location: Adelaide South Australia'79 5spd twin turbo
Posts: 326
Likes: 0
Received 1 Like
on
1 Post
I of course, believe that rear mount turbos are just wrong !
The exhaust side of a turbocharger is driven by heat difference across the turbine, by situating the turbo at the rear a lot of that heat (energy) is lost. This is why the exhaust manifold on turbo installations should be as short as possible and lagged or coated to retain energy. Witness the attention to detail on John Kuhns' hot side, indeed his whole installation.
Why not put in a little more effort and build a proper single or twin installation.
My 0.02 cents.
Cheers Roy
The exhaust side of a turbocharger is driven by heat difference across the turbine, by situating the turbo at the rear a lot of that heat (energy) is lost. This is why the exhaust manifold on turbo installations should be as short as possible and lagged or coated to retain energy. Witness the attention to detail on John Kuhns' hot side, indeed his whole installation.
Why not put in a little more effort and build a proper single or twin installation.
My 0.02 cents.
Cheers Roy
#7
I did a mid-mount turbo and am a huge fan of it if you have a 5-speed.
Unfortunately, if you have a Rogerbox you will have to do a rear mount.
After doing the mid mount, I am a huge fan of turbo-ing our cars.
Unfortunately, if you have a Rogerbox you will have to do a rear mount.
After doing the mid mount, I am a huge fan of turbo-ing our cars.
Trending Topics
#8
I of course, believe that rear mount turbos are just wrong !
The exhaust side of a turbocharger is driven by heat difference across the turbine, by situating the turbo at the rear a lot of that heat (energy) is lost. This is why the exhaust manifold on turbo installations should be as short as possible and lagged or coated to retain energy. Witness the attention to detail on John Kuhns' hot side, indeed his whole installation.
Why not put in a little more effort and build a proper single or twin installation.
My 0.02 cents.
Cheers Roy
The exhaust side of a turbocharger is driven by heat difference across the turbine, by situating the turbo at the rear a lot of that heat (energy) is lost. This is why the exhaust manifold on turbo installations should be as short as possible and lagged or coated to retain energy. Witness the attention to detail on John Kuhns' hot side, indeed his whole installation.
Why not put in a little more effort and build a proper single or twin installation.
My 0.02 cents.
Cheers Roy
#9
Rennlist Member
Thread Starter
#10
Rennlist Member
Thread Starter
#11
Rennlist Member
Thread Starter
I of course, believe that rear mount turbos are just wrong !
The exhaust side of a turbocharger is driven by heat difference across the turbine, by situating the turbo at the rear a lot of that heat (energy) is lost. This is why the exhaust manifold on turbo installations should be as short as possible and lagged or coated to retain energy. Witness the attention to detail on John Kuhns' hot side, indeed his whole installation.
Why not put in a little more effort and build a proper single or twin installation.
My 0.02 cents.
Cheers Roy
The exhaust side of a turbocharger is driven by heat difference across the turbine, by situating the turbo at the rear a lot of that heat (energy) is lost. This is why the exhaust manifold on turbo installations should be as short as possible and lagged or coated to retain energy. Witness the attention to detail on John Kuhns' hot side, indeed his whole installation.
Why not put in a little more effort and build a proper single or twin installation.
My 0.02 cents.
Cheers Roy
Last edited by BC; 03-12-2011 at 08:00 PM.
#12
Rennlist Member
Join Date: Jan 2006
Location: central cal
Posts: 975
Likes: 0
Received 0 Likes
on
0 Posts
Roy, the fact that the rear/mid mount turbo's WORK is a matter of record here. No argument that closer mounting is better- but its not wrong. It does work, and its a much easier solution for low-boost, bolt-on fun than the twin-turbo setups available.
#13
Nordschleife Master
#14
Rennlist Member
Thread Starter
Well, I will not be putting the turbo after the cat. I don't think it should be that way. For testing I may have to finagle something. So no to CAT.
#15
Nordschleife Master