would the pt cruiser turbo that air sierra used for his 2.4l fit on the 2.5l? - Page 2 - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Wrangler Forums > TJ Wrangler Technical Forum > would the pt cruiser turbo that air sierra used for his 2.4l fit on the 2.5l?

FS: 2007-2013 Jeep Wrangler "HALO" Angel Eye KitFS: Wranger BRIGHT License Plate LED! Just $3! Great valueROCKRIDGE4WD Introduces a NEW Jeep Wrangler JK *led* tail

Reply
Unread 11-17-2008, 10:18 PM   #16
KKiowaTJ
Registered User
1995 YJ Wrangler 
 
Join Date: Oct 2005
Location: Iowa
Posts: 3,446
Quote:
Originally Posted by hotrod_hooligan View Post
It's too late for me to even touch this, wrong on so many different points.
Lets hear it because my old YJ had a turbo on it? I wanna know what you think will work?

__________________
YJ, TJ, XJ, ZJ..... Too many Jeeps!
KKiowaTJ is offline   Reply With Quote
Unread 11-17-2008, 10:56 PM   #17
subaruboy
Registered User
2000 TJ Wrangler 
 
Join Date: Mar 2005
Location: Virginia Beach
Posts: 477
Quote:
Originally Posted by David Hinton View Post
would the turbo from a pt cruiser or srt4 work for the 2.5l? or is there another compatable turbo for the 2.5l that is pretty cheap?
thanks
i can see your thread is getting hyjacked rather quickly, so i'll try to keep it realtively short. the short answer is, the turbo hardware from the pt cruiser will not work with your enginer.

supplying the shop with the turbo from a PT cuiser and telling them to have at it is pointless. the 2.5L and 2.4L being completely different engines, there is nothing compatible about the pt cuiser setup and your current engine. it would be more cost effective to buy one of the few turbo kits available for the 2.5L. usually you can also buy a computer programmed from the company that sells the kits to install on your jeep that will tune it for the turbo. without the modified tuning, the turbo kit on your engine is pretty useless. the 2.5L doesn't have forged internals, and the compression ratio is quite a bit higher than is typically run on a forced induction motor, so getting the motor to run reliably without blowing up will require low boost and fine tuning.

alternatively, you could sell your jeep and get one that has a 2.4L in it. if you do that, then you can get the turbo from the pt cruiser and the intake and exhaust manifolds will bolt right up to your jeep. again, it lacks the reinforced internals and low compression ratio, so there is some tinkering involved, but there is a very good thread in here about a guy already doing the project with good results.
__________________
2000 Jeep TJ SE Amberfire Pearl- Sold, I miss her
1995 Escort LX
2005 PBM M6 GTO
subaruboy is offline   Reply With Quote
Unread 11-17-2008, 10:57 PM   #18
subaruboy
Registered User
2000 TJ Wrangler 
 
Join Date: Mar 2005
Location: Virginia Beach
Posts: 477
Quote:
Originally Posted by KKiowaTJ View Post
Lets hear it because my old YJ had a turbo on it? I wanna know what you think will work?
just curious, what year was your YJ? Did you install the turbo on it yourself, or did you buy it like that? And are you sure that you didn't have any sort of computer modifications at all?
__________________
2000 Jeep TJ SE Amberfire Pearl- Sold, I miss her
1995 Escort LX
2005 PBM M6 GTO
subaruboy is offline   Reply With Quote
Unread 11-18-2008, 12:06 AM   #19
KKiowaTJ
Registered User
1995 YJ Wrangler 
 
Join Date: Oct 2005
Location: Iowa
Posts: 3,446
Quote:
Originally Posted by subaruboy View Post
just curious, what year was your YJ? Did you install the turbo on it yourself, or did you buy it like that? And are you sure that you didn't have any sort of computer modifications at all?
Late model 95 with the OBD-II computer. Borg Wagner turbo, Jet stage 2 chip, Adjustable map sensor, High volume fuel pump with adjustable fuel pressure regular. Doug Thorley custom fit header, Dont remember the intake mani-fold, with parts from here and there to complete it, Waste gate, Blow off, Lines etc. But for the money, A 350 TBI would have been much better. A stock 350 puts out more stock HP/TQ than a 4cyl turbo in a jeep. I never had mine on the dyno, But i would have to say with all the mod's, Ballpark maybe 50%. I didn't do all the work myself, But i know that other than the chip, The PCM was left stock.
__________________
YJ, TJ, XJ, ZJ..... Too many Jeeps!
KKiowaTJ is offline   Reply With Quote
Unread 11-18-2008, 06:23 AM   #20
Unlimited04
This post/info=my opinion
 
Unlimited04's Avatar
2004 LJ Wrangler 
 
Join Date: Dec 2005
Location: Colorado
Posts: 23,249
Quote:
Originally Posted by KKiowaTJ View Post
Other than the first line you posted, Do you have any clue what you are even talking about? All your doing is pumping up your post count. If you run 02 Sim's, Hows the engine going to know what temp, Air to add, and fuel. The computer is fine, Might need a chip, But thats all. The only thing you have right is that you will need new manifold's, Intake and exhaust that is larger to handle a boost of a turbo. Plus an inter-cooler larger exhaust.
Yes I have a pretty damn good idea of what I'm talking about. Been researching how to turbo & supercharge a 4.0L for about 3 yrs now. The OP has a 2.5L, which isn't much different. I've ridding in a custom turbo Rubicon, WITH O2 SIMULATORS.

Why O2 simulators? So you can dyno tune the engine, and program custom timing and fuel maps. The computer won't 'adjust' for closed loop vs open loop because it won't know how much O2 is leaving the engine - you tell it by configuring it on a dyno.

How is the computer going to magically adjust for the increased air? How is the fuel pump going to deliver the increased fuel necessary? Can the stock pump even keep up? How do you know? Have you dyno tuned a turbo 2.5L? Have you flow tested the 2.5L pump?
Unlimited04 is offline   Reply With Quote
Unread 11-18-2008, 09:03 AM   #21
breckboarder55
Web Wheeler
 
breckboarder55's Avatar
1999 TJ Wrangler 
 
Join Date: Sep 2007
Location: Houston/ College Station, TX
Posts: 1,066
There is so much mis-information in this thread its not even funny. It won't fit, I've never heard of a 02 simulator. The only thing I can think of for this is that the stock computer is pulled for a standalone, because if you don't have a 02 sensor with the stock computer it will just throw a code. Now as far as a "simulator", maybe another 02 sensor hooked up to a wide band to properly tune the air/fuels.

A map sensor adjuster... A joke in the tuning world, these are basically the little boxes you see on ebay and the back of magazines that claim 10 hp gains for 20 bucks... Its basically a regulator that you wire into your map sensor and turn a screw to trick your computer into thinking its hotter or colder than it really is... Flaw though, its not accurate enough to make up for any significant changes on a N/A car, and OBD over time will re-adjust to what it thinks it is supposed to be. It also vary time to time with what the real temperature is. How do I know? A good friend and I once used one on his SRT-4, before he realized it was a bad idea. After that he ran a proper piggy back, to go with his 50-trim turbo.

I've built a 50 trim turbo SRT-4, done some work on a friends T-88 Supra, personally built my own T-70 powered RX-7, and am starting to help a buddy with a T-25 powered miata. Real world experience...

Subarukid is pretty on with what he is talking about, it might be possible to run with the stock injectors and pump... However, you never want to run them past their efficiency at 85%. Oh, and by borg wagner turbos I hope you meant Borg Warner....

This is for the OP... It would be cheaper, and more reliable in the long run for you to do a 4.0 swap or V-8 swap. If you are set on it, it is possible, but it is less tested. Shop work and fabricating can get pretty expensive. You could always look into selling your 2.5 for a 4.0.
__________________
To Veterans past and present, thank you for your service!
99 Jeep Wrangler-Just another TJ on 33"s
55 Dodge Royal Lancer- Resto Project
87 Mazda RX-7 Turbo II-Built.
87 Mazda RX-7 SE-Burn Victim
01 Honda S2000DD
breckboarder55 is offline   Reply With Quote
Unread 11-18-2008, 05:40 PM   #22
vector6
Registered User
2001 TJ Wrangler 
 
Join Date: Nov 2005
Location: MGTN, WV
Posts: 1,043
Quote:
Originally Posted by breckboarder55 View Post
There is so much mis-information in this thread its not even funny. It won't fit, I've never heard of a 02 simulator.

google...

http://www.titanmotorsports.com/pe02si.html
vector6 is offline   Reply With Quote
Unread 11-18-2008, 09:06 PM   #23
KKiowaTJ
Registered User
1995 YJ Wrangler 
 
Join Date: Oct 2005
Location: Iowa
Posts: 3,446
Quote:
Originally Posted by Unlimited04 View Post
Yes I have a pretty damn good idea of what I'm talking about. Been researching how to turbo & supercharge a 4.0L for about 3 yrs now. The OP has a 2.5L, which isn't much different. I've ridding in a custom turbo Rubicon, WITH O2 SIMULATORS.

Why O2 simulators? So you can dyno tune the engine, and program custom timing and fuel maps. The computer won't 'adjust' for closed loop vs open loop because it won't know how much O2 is leaving the engine - you tell it by configuring it on a dyno.

How is the computer going to magically adjust for the increased air? How is the fuel pump going to deliver the increased fuel necessary? Can the stock pump even keep up? How do you know? Have you dyno tuned a turbo 2.5L? Have you flow tested the 2.5L pump?

If you read the other post than you would know that i had one, waste of money. Stock PCM will work with a chip, Yes i could have gotten more out of it but why? Its still a 4cyl jeep, You dont have to tell me what works or not on a 2.5 turbo kit, Drove mine 15k problem free, And then sold it. never needed to "dyno tune' mine is as it wasnt meant to run the 1/4 mile.
__________________
YJ, TJ, XJ, ZJ..... Too many Jeeps!
KKiowaTJ is offline   Reply With Quote
Unread 11-18-2008, 09:36 PM   #24
-Rudy-
Registered User
1997 XJ Cherokee 
 
Join Date: Apr 2008
Location: Laredo, TX
Posts: 1,292
I think everyone is pretty much partially wrong to being flat out stupid.

-On an NA Fuel-Injected motor, you will need some sort of engine management to tune the damn thing (no, a chip will not do it.) Who knows what kinda hell you put your poor motor through running it like that.

-You don't need an intercooler or anything special... that all comes with power-levels and your set-up.

-For someone with "real world experience" how the hell do you not know about o2 sims? They're a pretty common tool when you start gutting/eliminating cats on OBD I & II vehicles.

All in all. No, it won't just bolt up. But, yes it can be done. But, no it probably wouldn't be cost effective. But, yes it would be unique. But, no I wouldn't waste my time.

And there you have my opinion. And now on to your basic parts list:

-Turbo (Whatever size for your application, in this case probably a rather meager unit.)
-Custom exhaust manifold or adapter.
-Custom exhaust piping to at least the stock catalytic converter (after that, it's up to you.)
-Custom intake setup.
-Wastegate, oil lines, etc. etc.
-Upgraded fuel pump and injectors.
-Some way to control the AFR. (Piggyback, standalone, etc.)

I'm sure I might have missed some things.
__________________

Quote:
Originally Posted by SarahRose
something big and fun
-Rudy- is offline   Reply With Quote
Unread 11-18-2008, 09:46 PM   #25
sailsurf7713
Registered User
1999 TJ Wrangler 
 
Join Date: Jun 2008
Location: Rhode Island
Posts: 1,112


Did the OP ever come back?.
__________________
'99 SE: The "It could be worse..." jeep

Quote:
Originally Posted by 97flexy View Post
...I say don't lift but CUT. :)
My Rusty Revival
sailsurf7713 is offline   Reply With Quote
Unread 11-18-2008, 10:31 PM   #26
breckboarder55
Web Wheeler
 
breckboarder55's Avatar
1999 TJ Wrangler 
 
Join Date: Sep 2007
Location: Houston/ College Station, TX
Posts: 1,066
Quote:
Originally Posted by RudyxTJ View Post

-For someone with "real world experience" how the hell do you not know about o2 sims? They're a pretty common tool when you start gutting/eliminating cats on OBD I & II vehicles.
.
...

Supra... runs an AEM standalone
RX-7... pre-OBD II and runs a standalone
SRT-4, never ran one. Never had a problem...
__________________
To Veterans past and present, thank you for your service!
99 Jeep Wrangler-Just another TJ on 33"s
55 Dodge Royal Lancer- Resto Project
87 Mazda RX-7 Turbo II-Built.
87 Mazda RX-7 SE-Burn Victim
01 Honda S2000DD
breckboarder55 is offline   Reply With Quote
Unread 11-19-2008, 07:09 PM   #27
-Rudy-
Registered User
1997 XJ Cherokee 
 
Join Date: Apr 2008
Location: Laredo, TX
Posts: 1,292
Quote:
Originally Posted by breckboarder55 View Post
...

Supra... runs an AEM standalone
RX-7... pre-OBD II and runs a standalone
SRT-4, never ran one. Never had a problem...
How the hell you managed to tune 2 stand-alones and not know what o2 sensors/simulators do, is beyond me. They're rather basic tricks, like I said.

SRT-4 has pretty much a straight pipe for a stock exhaust, therefore I don't believe it'd throw codes.
__________________

Quote:
Originally Posted by SarahRose
something big and fun
-Rudy- is offline   Reply With Quote
Unread 11-19-2008, 07:36 PM   #28
'B'wigstrailrig
Registered User
2004 TJ Wrangler 
 
Join Date: Sep 2006
Location: Ft. Campbell
Posts: 553
Could he just pull motor and all from the PT cruiser? Then he would have the forged inners, exaust manifold and all that mumbo jumbo. I dont have a clue what Im talking about but does that make sense to someone that does? Could he use the computer from the PT cruiser as well?
'B'wigstrailrig is offline   Reply With Quote
Unread 11-19-2008, 07:39 PM   #29
-Rudy-
Registered User
1997 XJ Cherokee 
 
Join Date: Apr 2008
Location: Laredo, TX
Posts: 1,292
Quote:
Originally Posted by 'B'wigstrailrig View Post
Could he just pull motor and all from the PT cruiser? Then he would have the forged inners, exaust manifold and all that mumbo jumbo. I dont have a clue what Im talking about but does that make sense to someone that does? Could he use the computer from the PT cruiser as well?
I wouldn't really know how to answer that question. With the 2.4L models, I'm sure you could interchange most of the parts, however I believe that in a jeep, the motor is mounted traverse and in the PT it is mounted horizontally. Again, I'm not 100% sure.
__________________

Quote:
Originally Posted by SarahRose
something big and fun
-Rudy- is offline   Reply With Quote
Unread 11-19-2008, 07:46 PM   #30
'B'wigstrailrig
Registered User
2004 TJ Wrangler 
 
Join Date: Sep 2006
Location: Ft. Campbell
Posts: 553
Yeah its probably horizontal but if its the same 2.4 as a jeeps then I would think it would mount straight. Maybe need a different bell housing. Again I dont know. Were the hell is the OP? Are you pulling this from a junk yard or robbing your mother in law? Maybe you should get the whole motor while your at it.
'B'wigstrailrig is offline   Reply With Quote
Reply
Thread Tools


Suggested Threads





Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.