Turbo-charging vs. Supercharging?
I had a 93 GSX with a worked over 16g running 31lbs max boost. MLS headgasket, arp studs, HUGE front mount (3'x2'x3" thick) wally 255 pump, and 800something cc injectors with an ACT2600 clutch.
But that was years ago.
Do some research and look at the flow charts. That'd be the best way to put together the ideal turbo.
Senior Member
Joined: Nov 2012
Posts: 523
Likes: 0
From: Plymouth CT
Year: 1988
Model: Cherokee
Engine: 4.0L
Not this again
A turbo isn't noticeable till it spools, so one the trails it doesn't matter,
Now here's the problems with a turbo
1 Mounting, Via the manifold or moving it.
2 Piping its a pain in the ***. Using a Boostwerks manifold makes it simple but is bank! Modding a renix manifold is easier.
3 Fuel management, You have it easy you can run a FMU or a fuel pressure regulator but you need to make sure your fuel pump is up to it or upgrade (This applies to the Super aswell) But if you with a mega squirt it is also doable.
4 Supers are easy to setup and build boost early but can be expensive. Just like Tuning a turbo.
Now here are some helpful links
http://www.naxja.org/forum/showthread.php?t=1099041
Names seems familiar I don't know why?
http://www.boostwerks.com/products/4-0l-turbo-manifold
Turbo manifold
http://www.naxja.org/forum/showthread.php?t=1098855
Good build up for info
http://www.naxja.org/forum/showthread.php?t=1094822\
Another good build
http://www.naxja.org/forum/showthread.php?t=1031285 On of the best
I am using a Cummins HX35, Modifying a Renix fuel rail and will be using some 38 lb injectors with a regulator.
A turbo isn't noticeable till it spools, so one the trails it doesn't matter,
Now here's the problems with a turbo
1 Mounting, Via the manifold or moving it.
2 Piping its a pain in the ***. Using a Boostwerks manifold makes it simple but is bank! Modding a renix manifold is easier.
3 Fuel management, You have it easy you can run a FMU or a fuel pressure regulator but you need to make sure your fuel pump is up to it or upgrade (This applies to the Super aswell) But if you with a mega squirt it is also doable.
4 Supers are easy to setup and build boost early but can be expensive. Just like Tuning a turbo.
Now here are some helpful links
http://www.naxja.org/forum/showthread.php?t=1099041
Names seems familiar I don't know why?
http://www.boostwerks.com/products/4-0l-turbo-manifold
Turbo manifold
http://www.naxja.org/forum/showthread.php?t=1098855
Good build up for info
http://www.naxja.org/forum/showthread.php?t=1094822\
Another good build
http://www.naxja.org/forum/showthread.php?t=1031285 On of the best
I am using a Cummins HX35, Modifying a Renix fuel rail and will be using some 38 lb injectors with a regulator.
Seasoned Member
Joined: Sep 2012
Posts: 268
Likes: 0
From: Barrie, ON, CAN
Year: 99
Model: Cherokee
Engine: 4.0L
All anyone can do is give details of what THEY would do if they were in your shoes, building a boosted 4.0L. experiment and build what you want to build, turbo or SC. it's ultimately your call
Last edited by Roblaza; Apr 23, 2013 at 01:55 PM.
Seasoned Member
Joined: Sep 2012
Posts: 268
Likes: 0
From: Barrie, ON, CAN
Year: 99
Model: Cherokee
Engine: 4.0L
CF Veteran
Joined: Sep 2009
Posts: 6,322
Likes: 6
From: Summerville, Ga
Year: 1995
Model: Cherokee
Engine: 2.5 4 cyl.
Seasoned Member
Joined: Sep 2012
Posts: 268
Likes: 0
From: Barrie, ON, CAN
Year: 99
Model: Cherokee
Engine: 4.0L
I think you're mistaken. I used to own a ralliart, and I've been on the evo boards for a long time and not once have I heard of a 4g63T building 20+ PSI at 2500. They don't start to build any decent pressure until around 4000 RPM at the least, and at the top end 22-24 PSI is common MAX. But that's besides the point.
All anyone can do is give details of what THEY would do if they were in your shoes, building a boosted 4.0L. experiment and build what you want to build, turbo or SC. it's ultimately your call
All anyone can do is give details of what THEY would do if they were in your shoes, building a boosted 4.0L. experiment and build what you want to build, turbo or SC. it's ultimately your call
20-24 psi is common max pressure to whom? You? Just what you've been around?
A guy I was hanging out with used a GT4249R with no wastegate. Ran full boost, 55lbs. He ran under 10 seconds at 150+ mph.
Another guy in my area is running a 2g Eclipse, well over 24 lbs boost.
This is starting to sound like the bench racing version of web wheeling.
Seasoned Member
Joined: Sep 2012
Posts: 268
Likes: 0
From: Barrie, ON, CAN
Year: 99
Model: Cherokee
Engine: 4.0L
Plain and simple I owned a 93 GSX for several years. With a 16g I was at 20 lbs by 22-2300 rpm.
20-24 psi is common max pressure to whom? You? Just what you've been around?
A guy I was hanging out with used a GT4249R with no wastegate. Ran full boost, 55lbs. He ran under 10 seconds at 150+ mph.
Another guy in my area is running a 2g Eclipse, well over 24 lbs boost.
This is starting to sound like the bench racing version of web wheeling.
20-24 psi is common max pressure to whom? You? Just what you've been around?
A guy I was hanging out with used a GT4249R with no wastegate. Ran full boost, 55lbs. He ran under 10 seconds at 150+ mph.
Another guy in my area is running a 2g Eclipse, well over 24 lbs boost.
This is starting to sound like the bench racing version of web wheeling.
Not many USDM Eclipses/Talons/Lasers came with a 16g from the factory.
But for $5-600 (at least thats what they were) you can get a direct fit 16g made by mitsu. Then some 550cc injectors to help.with fuel cut, and a safc of sorts and you'll be rocking out.
But for $5-600 (at least thats what they were) you can get a direct fit 16g made by mitsu. Then some 550cc injectors to help.with fuel cut, and a safc of sorts and you'll be rocking out.
I was looking at a SBR 50 trim if I remember correctly.
I had a 93 GSX with a worked over 16g running 31lbs max boost. MLS headgasket, arp studs, HUGE front mount (3'x2'x3" thick) wally 255 pump, and 800something cc injectors with an ACT2600 clutch.
But that was years ago.
Do some research and look at the flow charts. That'd be the best way to put together the ideal turbo.
I had a 93 GSX with a worked over 16g running 31lbs max boost. MLS headgasket, arp studs, HUGE front mount (3'x2'x3" thick) wally 255 pump, and 800something cc injectors with an ACT2600 clutch.
But that was years ago.
Do some research and look at the flow charts. That'd be the best way to put together the ideal turbo.
To the guys that think its so hard to turbo engines think again !
You can put a turbo just about anywhere and you can turbo any engine.
JDM will net you a red top 4g63T it has those two items you speak of. I had a SAFC on my Talon with 550 injectors.
I drove a 57 chevy 2dr hdtp to high school . 283 60 over 2x4 intake crower cam, muncie 4 spd. I sold my 55 chevy 210 sedan in 09 when I was getting my divorce it had a 454 that was mild a Th 400, 57 olds rear with 4.88 gears.
CF Veteran
Joined: Sep 2009
Posts: 6,322
Likes: 6
From: Summerville, Ga
Year: 1995
Model: Cherokee
Engine: 2.5 4 cyl.
Hell yeah. Lol speaking of turbos and 383's.. My buddys got a fully forged 383 sitting on the engine stand thats about to get a twin turbo setup on it.. He's gonna put it in a MUSTANG!



! Thinking about another but all I find are gutted race cars I want a daily driver with creature features .