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Unread 11-14-2011, 01:40 PM   #31
aircruiser
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Subscribed! I have thought of this, want to see it go through! Are you going to beef up the 42re at all or run it til it blows?

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Unread 11-14-2011, 01:45 PM   #32
1717pxcb
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you will heat sock a top mount intercooler as well.
when i had a mazdaspeed3, they came with stock top mounts...definitely a problem for heat soak.
i can't think of one build of a car that came naturally aspirated from the factory that uses a top mount by choice.
i've seen a whole lot of build threads too.
do yourself a favor and get a front mount.
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Unread 11-14-2011, 02:50 PM   #33
4x4nation
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JDM Toyota Starlet (EP9) tinny little front mount did the car well lol.. We swaped the 4efte motor from a starlet into my cousins Toyota Tercel, it rips for a 1.3L and boost from the factory potato seems to well cooled by the phonebook sized top mount intercooler untill 16psi. STI top mounts do well to 320 - 350 hp.. Heat soak and a top mount depends on your ventallation.. Front mounts well be alot less prone to heat soak however yes, because there not on top of a 180 deg. engine for sure. However a top mount can be effective ventalation pending... A top mount would aid spool up as well due to shorter route for the intercooler pipes.. A good tip for letting hot air escape the engine bay is to shim your hood with a few washers.. Saved my supra 13 degrees underhood temp. at the track this summer..

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Unread 11-14-2011, 03:07 PM   #34
1717pxcb
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the routing of the piping was always my biggest beef with front mounts.
srt4 neons (iirc) have really short pipes as do evox's.
with my ms3, there were about 6-7 feet of piping and a lot of couplers, so you are indeed losing spool time as well asking for leaks
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Unread 11-14-2011, 05:56 PM   #35
TurboTPI
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Well, i had the zj up on the lift at work today. I think i have the exhaust routing alI figured out. Shouldn't be too bad at all. I wish I could fit a front mount, I just don't see how it would fit. There is no room in front of the a/c condenser. We'll see what I can fab up. But for now it will be non intercooled. And I'll see how it runs.
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Unread 11-14-2011, 06:25 PM   #36
stretchj
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This looks like a fun build!
I'll be keeping an eye on this
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Unread 11-14-2011, 06:41 PM   #37
4x4nation
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Hey dude the Ford XR4Ti was never intercooled and they did fine on modderate boost.. Good Luck with the project
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Unread 11-14-2011, 08:02 PM   #38
badbird17x
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Ever look at doing it like an sts rear mount turbo. Basically replace the muffler with a turbo, then the long charge pipe acts as a cooler.

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Unread 11-14-2011, 08:45 PM   #39
TurboTPI
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Quote:
Originally Posted by badbird17x
Ever look at doing it like an sts rear mount turbo. Basically replace the muffler with a turbo, then the long charge pipe acts as a cooler.

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I did, but there really wouldn't be much advantage over the setup I'm planning on doing. Plus, I do use this off road and I'm not sure how good that would be having a turbo under the jeep. Plus I'd need an oil return pump. If it was a pure street vehicle, I'd think about a rear mount setup.
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Unread 11-14-2011, 08:54 PM   #40
donthelegend
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Don't know if you've seen it or not, and its on an XJ instead of a ZJ, but there's lots of good info in this thread and plenty of pictures and info.

http://www.naxja.org/forum/showthread.php?t=1031285
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Unread 11-15-2011, 12:36 AM   #41
Zdrisko
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I only read the last page but I pretty much get what you're doing. IF you're going to boost it, pay the money and do it right. T3/t4 is perfect for low-end boost. Jeeps are not made to be for the 1/4mile. The head gasket will blow, its just a matter of time. You'll also need bigger injectors and an air/fuel controller. I suggest an Apexi Super AFC. Plus after all the parts are installed, you'll have to find a shop to tune the ecu. As for your intercooler issue. As long as you keep your Jeep out of deep mud, I would rear mount the turbo.... = no need for an IC. As a I used to own tuner cars, I've seen others go for cheap parts and try to skimp by. Every time they pay for it in the end.
Cheap turbo's are fine for a couple miles. If the turbo shreds, the metal is going to go all inside your motor. I wouldn't run one of those Chinese turbo's any more than 20k miles. A Cometic head gasket is ideal too. ARP studs are reusable too. I don't mean to barge in and talk big but I hate seeing people tear their cars up on unreliable info and imitation parts. If you have any questions, feel free to ask.
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Unread 11-15-2011, 06:47 AM   #42
2doorxj
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Quote:
Originally Posted by Hussler View Post
I would have turbo'd my 4.0 by now but every setup ive seen on the XJs was a total ***** for the builder, just plain old not enough space.
Always wanted to turbo something. Good luck!!!
You've never seen boostwerks build thead have you?
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Unread 11-15-2011, 07:13 AM   #43
TurboTPI
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Quote:
Originally Posted by donthelegend
Don't know if you've seen it or not, and its on an XJ instead of a ZJ, but there's lots of good info in this thread and plenty of pictures and info.

http://www.naxja.org/forum/showthread.php?t=1031285
Thanks for sharing that, very good info there
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02 WJ Limited 4.7l HO-stock (Hers)
95 ZJ 4.0 Turbo-up 5.5 on 33x12.5's, Ford 8.8 w/Artec truss (His)
92 Firebird Formula custom turbo setup (His)
09 Polaris Dragon 800 (His)
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Unread 11-15-2011, 07:15 AM   #44
TurboTPI
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Quote:
Originally Posted by aircruiser
Subscribed! I have thought of this, want to see it go through! Are you going to beef up the 42re at all or run it til it blows?
Im just going to leave the 42re as it sits and see how it takes it. I have fresh spare trans so, if it blows I'll have a back up.
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02 WJ Limited 4.7l HO-stock (Hers)
95 ZJ 4.0 Turbo-up 5.5 on 33x12.5's, Ford 8.8 w/Artec truss (His)
92 Firebird Formula custom turbo setup (His)
09 Polaris Dragon 800 (His)
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Unread 11-15-2011, 07:50 AM   #45
TurboTPI
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1995 ZJ 
 
Join Date: Feb 2011
Location: Bensenville, Il
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Quote:
Originally Posted by Zdrisko
I only read the last page but I pretty much get what you're doing. IF you're going to boost it, pay the money and do it right. T3/t4 is perfect for low-end boost. Jeeps are not made to be for the 1/4mile. The head gasket will blow, its just a matter of time. You'll also need bigger injectors and an air/fuel controller. I suggest an Apexi Super AFC. Plus after all the parts are installed, you'll have to find a shop to tune the ecu. As for your intercooler issue. As long as you keep your Jeep out of deep mud, I would rear mount the turbo.... = no need for an IC. As a I used to own tuner cars, I've seen others go for cheap parts and try to skimp by. Every time they pay for it in the end.
Cheap turbo's are fine for a couple miles. If the turbo shreds, the metal is going to go all inside your motor. I wouldn't run one of those Chinese turbo's any more than 20k miles. A Cometic head gasket is ideal too. ARP studs are reusable too. I don't mean to barge in and talk big but I hate seeing people tear their cars up on unreliable info and imitation parts. If you have any questions, feel free to ask.
I'm not a fan of cheap stuff either, on my firebird, I have a turbonetics turbo, and tial wastegate and BOV, all top of the line as you would know. But this project is gonna be more of a budget build. I couldn't pass the deal on the turbo. And I have seen some of these Chinese turbos hold up on a couple friends of mine cars. I'm not doing any type of piggy back ECU. With the low boost I'm running, an FMU will do fine.
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02 WJ Limited 4.7l HO-stock (Hers)
95 ZJ 4.0 Turbo-up 5.5 on 33x12.5's, Ford 8.8 w/Artec truss (His)
92 Firebird Formula custom turbo setup (His)
09 Polaris Dragon 800 (His)
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