Rear mount turbo - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

2010_camaro · 01-04-2020, 06:18 AM

So when doing rear mount twin turbos is it best to do 3in or 2.5in pipe back to the turbos?
Also what is a good oil return pump?

stevieturbo · 01-04-2020, 02:32 PM

I cant see any reason to do rear mounts, but the smaller 2.5 would make more sense

And Turbowerx Exa pump

HOJO · 01-04-2020, 09:19 PM

There is a lot of lag with rear mounts. Depending on your end goal it may or may not be a factor.

2010_camaro · 01-05-2020, 10:59 AM

I'm trying to help weight transfer better. Car is way to front heavy. Currently sitting at 3640lbs but 2080 front 1560 rear. Moving the twins in the back and going air to water will help reduce front end weight.

stevieturbo · 01-05-2020, 11:26 AM

I guess that is one good reason.

probably not enough to make a realistic difference though.

bayarea408 · 01-06-2020, 03:11 PM

i'd swap for a re sleeved aluminum block before i designed a whole rear mount kit, considering i'd already have a twin kit like you. That will take a good amount off the nose, like a solid 110 lb's.

sweet99ss · 01-06-2020, 11:35 PM

I always like the idea of rear mounts. so much more room and easier to work on. Loosing weight of the front is a bonus. Getting all that oil back to the engine seems like it may be a bitch though.

LsxDoctor · 01-07-2020, 02:59 PM

I've done a couple... On an iron 6.0L used 2.25", spooled twin 57mm teriyaki tornados pretty quick and had good power up top! 2.5" on cold side.
I'm running a mix of 2" and 2.25" with a single 88mm in my car. Kit I made is similar to the turbonetics kit so there's a lot of exhaust pipe and it spools/works just fine.
I'm really considering going rear mount in a few weeks. One person on the internet cries lag and now everyone with no rear mount experience swears ALL rear mount setups have horrible lag lol

Rem0v3r · 01-11-2020, 08:23 PM

Ive done it.
I have a single 3" back to front but if i did it over again id choose 2 2.5".
Youre going to run into issues getting the pipe from behind to infront of the front wheels with 3". I ended up "oval" izing my 3 inch pipe for ground clearance.

Do not buy the ebay scavange pump and dont wast $$$ on the exapump. Get the shurflo 8000 643 210 pump.. it works, the price is right and its not super loud..

Only other thing ill tell you is make sure you add check valves on the oil line feeding the turbo....

You can check out my build on youtube... man stuff channel.

stevieturbo · 01-12-2020, 05:10 AM

That Shurflo pump is not intended for hot engine oil, its max rated temperature is 180degF

A diaphragm pump is not a good choice for this application.

Rem0v3r · 01-12-2020, 07:55 AM

Used it for over a year. Works fine

stevieturbo · 01-12-2020, 09:30 AM

It may have...but it is still a bad choice, and going against the manufacturers instructions

Rem0v3r · 01-12-2020, 06:28 PM

My oil doesnt get any hotter than 180. Like i said it works fine

stevieturbo · 01-12-2020, 06:31 PM

And a china pump would work fine too...doesnt mean it's a good idea.

01-04-2020, 06:18 AM	#1
2010_camaro Drives: 2014 Camaro SS Join Date: May 2011 Location: Florence, KY Posts: 2,238 View My Garage	Rear mount turbo So when doing rear mount twin turbos is it best to do 3in or 2.5in pipe back to the turbos? Also what is a good oil return pump? __________________ MODS 6.0 forged iron block, TH400, B&M shifter, DSS axles & driveshaft, Viking / BMR suspension, Full custom fuel system with cell, Twin 76mm teriyaki tornados on 24lbs. https://www.instagram.com/whoopa_ss/

01-05-2020, 10:59 AM	#4
2010_camaro Drives: 2014 Camaro SS Join Date: May 2011 Location: Florence, KY Posts: 2,238 View My Garage	I'm trying to help weight transfer better. Car is way to front heavy. Currently sitting at 3640lbs but 2080 front 1560 rear. Moving the twins in the back and going air to water will help reduce front end weight. __________________ MODS 6.0 forged iron block, TH400, B&M shifter, DSS axles & driveshaft, Viking / BMR suspension, Full custom fuel system with cell, Twin 76mm teriyaki tornados on 24lbs. https://www.instagram.com/whoopa_ss/

01-06-2020, 03:11 PM	#6
bayarea408 Drives: T Join Date: Mar 2015 Location: CA Posts: 803	i'd swap for a re sleeved aluminum block before i designed a whole rear mount kit, considering i'd already have a twin kit like you. That will take a good amount off the nose, like a solid 110 lb's. Last edited by bayarea408; 01-06-2020 at 03:39 PM.

01-06-2020, 11:35 PM	#7
sweet99ss Drives: 2012 ZL1 Camaro Join Date: Dec 2015 Location: Plains KS Posts: 219	I always like the idea of rear mounts. so much more room and easier to work on. Loosing weight of the front is a bonus. Getting all that oil back to the engine seems like it may be a bitch though. __________________ ~01 zO6~ (Procharged/bolt-ons) SOLD ~05 Vette~ (Procharged/Bolt-ons) SOLD ~98 Z28~ (TMS 408/RPM LVL 6/Circle D4k) SOLD. ~00 SS~ (Forged LS/IIHS 7875 Turbo/RPM Lvl 6/Strange S60) 10.3-141 ~2010 SS~ (SLP TVS2300 Blower/Speed Eng LT's) ~2012 ZL1~ (IIHS Twin Turbo)

01-07-2020, 02:59 PM	#8
LsxDoctor 15 Year LS1Tech Member Drives: 2010 ss 391ci LS3 Join Date: Apr 2017 Location: Albuquerque Posts: 252	I've done a couple... On an iron 6.0L used 2.25", spooled twin 57mm teriyaki tornados pretty quick and had good power up top! 2.5" on cold side. I'm running a mix of 2" and 2.25" with a single 88mm in my car. Kit I made is similar to the turbonetics kit so there's a lot of exhaust pipe and it spools/works just fine. I'm really considering going rear mount in a few weeks. One person on the internet cries lag and now everyone with no rear mount experience swears ALL rear mount setups have horrible lag lol __________________ GJDM

01-04-2020, 02:32 PM	#2
stevieturbo Drives: it changes Join Date: Nov 2010 Location: Norn Iron Posts: 1,126	I cant see any reason to do rear mounts, but the smaller 2.5 would make more sense And Turbowerx Exa pump

01-04-2020, 09:19 PM	#3
HOJO Drives: 2014 Camaro SS/RS 1LE 1967 Camaro Join Date: Oct 2013 Location: Fort Wayne, IN Posts: 873	There is a lot of lag with rear mounts. Depending on your end goal it may or may not be a factor.

01-05-2020, 11:26 AM	#5
stevieturbo Drives: it changes Join Date: Nov 2010 Location: Norn Iron Posts: 1,126	I guess that is one good reason. probably not enough to make a realistic difference though.

01-11-2020, 08:23 PM	#9
Rem0v3r Drives: 2013 ss2 vert l99 Join Date: Apr 2017 Location: South florida Posts: 150	Ive done it. I have a single 3" back to front but if i did it over again id choose 2 2.5". Youre going to run into issues getting the pipe from behind to infront of the front wheels with 3". I ended up "oval" izing my 3 inch pipe for ground clearance. Do not buy the ebay scavange pump and dont wast $$$ on the exapump. Get the shurflo 8000 643 210 pump.. it works, the price is right and its not super loud.. Only other thing ill tell you is make sure you add check valves on the oil line feeding the turbo.... You can check out my build on youtube... man stuff channel.

01-12-2020, 05:10 AM	#10
stevieturbo Drives: it changes Join Date: Nov 2010 Location: Norn Iron Posts: 1,126	That Shurflo pump is not intended for hot engine oil, its max rated temperature is 180degF A diaphragm pump is not a good choice for this application.

01-12-2020, 07:55 AM	#11
Rem0v3r Drives: 2013 ss2 vert l99 Join Date: Apr 2017 Location: South florida Posts: 150	Used it for over a year. Works fine

01-12-2020, 09:30 AM	#12
stevieturbo Drives: it changes Join Date: Nov 2010 Location: Norn Iron Posts: 1,126	It may have...but it is still a bad choice, and going against the manufacturers instructions

01-12-2020, 06:28 PM	#13
Rem0v3r Drives: 2013 ss2 vert l99 Join Date: Apr 2017 Location: South florida Posts: 150	My oil doesnt get any hotter than 180. Like i said it works fine

01-12-2020, 06:31 PM	#14
stevieturbo Drives: it changes Join Date: Nov 2010 Location: Norn Iron Posts: 1,126	And a china pump would work fine too...doesnt mean it's a good idea.