Boostwerks.com turbo XJ build...

[94CountryXJ]

Hell yeah man. I wasn't judging your choice of build btw. Just not my cup of tea. I'm a die hard V8 guy.

 

[mk153smaw]

Hell yeah man. I wasn't judging your choice of build btw. Just not my cup of tea. I'm a die hard V8 guy.

No worries there. I do want to see how this thread turns out though. With my lift I should be able to route the exhaust tubes with a little more clearance than a 3" lift. I am at 6.5, but my bump stop should give me a good zone of space to work with.
I was also looking at the 3 to 2 to 1 setup, but I think it might get far too complicated with the tight bends. I wonder if a type can be made kinda like a V8 rams horn? Any of you smarter exhaust guys know if it would be horrible or do-able? Granted I am pushing alot of exhaust out of my motor than a 4.0
with 4" pistons and a 4.06 stroke on the crank (2.02 int, 1.60 ext) I should be acting like a V8 for volume levels of gas moving out.

Also has anyone thought about the different compression ratio's that could be associated for turbo's? I am right in the 9.0 to 9.2 range and still wondering if I should just stay with 6-8 lbs of boost.

 

[Boostwerks.com]

I love how some people act like they are rocket scientists cause they are slapping turbos on low revving 4.0's.

Building a reliable well tuned turbo setup is the same for any 4 stroke engine.

I in no way feel that I'm a rocket scientist, but until you've done the fabrication and tuning yourself, your talking out of your ass. :compwork:

 

[Boostwerks.com]

Also has anyone thought about the different compression ratio's that could be associated for turbo's? I am right in the 9.0 to 9.2 range and still wondering if I should just stay with 6-8 lbs of boost.

It's all about the tuning. I run 11:1CR on my honda with 91 octane and put out 350whp to the wheels (1.6l).

I reccomend tuning for the amount of power your after with the engine setup you have/can afford. 9:1 will allow a good amount of power on 91 octane. "Boost" is realitive to turbo size (flow), so it's not very practicle to say you'll run 6-8lbs of boost. What you should really shoot for is a safe power level, and run the amount of boost it takes to get there.

 

[mk153smaw]

It's all about the tuning. I run 11:1CR on my honda with 91 octane and put out 350whp to the wheels (1.6l).

I reccomend tuning for the amount of power your after with the engine setup you have/can afford. 9:1 will allow a good amount of power on 91 octane. "Boost" is realitive to turbo size (flow), so it's not very practicle to say you'll run 6-8lbs of boost. What you should really shoot for is a safe power level, and run the amount of boost it takes to get there.

non boost I am well over 300Hp with all of my torque at the low end. I haven dyno'd this motor yet, but a sister motor that was built to a 4.8L with the rest of the upper engine mods identicle to mine dyno'd at 340ish HP and around 450 to 500lbs of torque between 1800 and 2200 rpm. Now that was just on the stand and not torque at the wheels.
So, safe numbers for me I can pretty much feel good with my build around 500 to 600 HP. Which is not out of the question, I pulled just under 500 from a 4.3L using a supercharger on a dit class racer.
I have alot of quaity components in my build and my mains were beefed up. Diamond made the pistons and the are for nitrous/charged applications, along with the rods being H beam heavy dutys.

 

[Talyn]

It's all about the tuning. I run 11:1CR on my honda with 91 octane and put out 350whp to the wheels (1.6l).

You can't compare a Honda engine to an AMC/Jeep I6

 

[yossarian19]

Sure ya can. It's best if you don't, though - Hondas are putting out way more HP / cube.
Of course, the Jeep I6 is a 1960s design...

 

[Boostwerks.com]

You can't compare a Honda engine to an AMC/Jeep I6

When all your talking about is compression and quench... sure you can. In terms of volumetric efficency, hell no.

 

[Boostwerks.com]

Bump for a little update. I received my SYE and rebuild kit from JB conversions. Just waiting on my TW driveshaft to do the install. I wanted to make sure my TC could take the power before I did the turbo install. I should be doing the rebuild in a couple weeks, and turbo install a couple weeks after.

Nicely packaged parts by JB:

Also since I havn't posted any pics of the rig...

 

[Stallacrew]

Those rims are sick. What are they and do they come in grey?

 

[Boostwerks.com]

Konig countersteers. They come in bronze and black with a polished lip (in this bolt pattern). They are a 16x7. I love em.

I wheel this rig, and some have commented on rock rash. My argument against that is that they are cheaper than rubicons

 

[JJacobs]

What's that? Your turbo kit is installed and running on something?

Ohh, my bad..

pfi sticker huh? Surprised I haven't seen you down there, I help (more like get in the way) with Kyle's Honda dragster sometimes.

 

[BlackXJ4.0]

The wheels and lift look sick, now throw the turbo on already (and paint your bumpers ends)!!

 

[Boostwerks.com]

What's that? Your turbo kit is installed and running on something?

Ohh, my bad..

pfi sticker huh? Surprised I haven't seen you down there, I help (more like get in the way) with Kyle's Honda dragster sometimes.

Yeah, I've known Brent for a long time. I've been turboing hondas for the past 8 years now. PFI is just one of the many local shops I've worked with over the years. I have a time attack CRX that I'm putting the finishing touches on for next season. I will be competing in NASA's rocky mountain series if you ever find yourself coming down to HPR raceway next year . Some pics...

The wheels and lift look sick, now throw the turbo on already (and paint your bumpers ends)!!

Thanks. One well fabricated step at a time though.

 

[urban yan]

Your jeep looks awesome, and the honda build looks great,

but please stop being such a tease; I had enough foreplay on JF.
Let's see some freakin' turbo action.

 

[NXJ]

Digging the wheels. What's the offset/BS? How much lift? Tire size?

Also, are these hub-centric rings I see?

 

[Boostwerks.com]

Your jeep looks awesome, and the honda build looks great,

but please stop being such a tease; I had enough foreplay on JF.
Let's see some freakin' turbo action.

Paitence is a virtue my freind.

Digging the wheels. What's the offset/BS? How much lift? Tire size?

Also, are these hub-centric rings I see?

They have a 4.5" BS if I remember right. The tires are 285/75/16 which = 33x11.5. The lift is around 4", a combination of old man emu springs and a teraflex budget boost. I will be building a custom track bar, heim link steering, and long arms out of 1.5" .25 wall DOM here soon (gotta love being the manager of a fab shop).

Those are spidertrax wheel spacers. The wheels have a larger hub than the jeep. I'd like to get some hub centric rings though for sure.

 

[CSaddict]

That is the hottest set of wheels I have seen on a Jeep. That may due to the import influence we share.

 

[NXJ]

Those are spidertrax wheel spacers. The wheels have a larger hub than the jeep. I'd like to get some hub centric rings though for sure.

How wide are the spacers? Those aren't stock lug nuts?

 

[urban yan]

I have a better question.
How's the turbo project coming along!!??