Turbocharging

[jeepTJ$]

I am currently frame-swapping my whole 2001 Jeep TJ 4.0. I’m about to pull the motor out , and I was planning to turbo the motor when putting it back together onto the new frame. From what I’ve seen, you can run that much boost without head studs and a stronger head gasket. The engine has 89,000 miles on it, and nothing has been done to it before. I’m just trying to get others’ thoughts on this and see if I should upgrade the head studs and gasket, or just leave it as is while it’s out of the car.

 

[Chris]

Well if you want to do it right, upgrade the head studs and gasket. If you want to run lower boost then slap a turbo on and run a low psi.

It’s up to you. One way is the right way and the other way is the half-cocked way.

 

[TJuser]

I am currently frame-swapping my whole 2001 Jeep TJ 4.0. I’m about to pull the motor out , and I was planning to turbo the motor when putting it back together onto the new frame. From what I’ve seen, you can run that much boost without head studs and a stronger head gasket. The engine has 89,000 miles on it, and nothing has been done to it before. I’m just trying to get others’ thoughts on this and see if I should upgrade the head studs and gasket, or just leave it as is while it’s out of the car.

Read through @Jezza build thread https://wranglertjforum.com/threads/turbo-4-liter.49996/#post-880619

I may be way off on this, but I've seen a couple Youtube vids and you may be able to get away with around 5-8 lbs of boost before it starts becoming an issue with knocking? Either way, if you can spare the money, I think it'd be worth it to spend the money clamping the head down properly because it sucks having to go in after and redo that with a new gasket and studs.

 

[TurboTJ]

I have been running 6 psi for the last 9 years on a stock engine with no problems.

 

[BlueC]

From what I’ve seen, you can run that much boost without head studs and a stronger head gasket.

How much?

Generally speaking, factory N/A engines can safely run up to 10 psi before finding issues. Keep in mind more boost = more heat. If you're turboing and pulling the head, it would be a good time to add a little ring gap for safety.

 

[jeepTJ$]

ok i think im going to do the studs and gasket, Has anyone had issues with transmision/driveline issues. Im 18 i don't want to say i drive it like i stole it but i do most of the time and want more power thats the main reason i want the turbo for more power. I just swaped a 350 small block in my friends Yj and want more power without spending 6 grand

 

[BlueC]

ok i think im going to do the studs and gasket, Has anyone had issues with transmision/driveline issues. Im 18 i don't want to say i drive it like i stole it but i do most of the time and want more power thats the main reason i want the turbo for more power. I just swaped a 350 small block in my friends Yj and want more power without spending 6 grand

Less than $6K will be a tight budget for turboing if you want reliable. Doable, but tight. Studs might not be within that budget, and honestly probably not needed. I think you need to do a lot more research. Go read through Jezza's stuff. Also, LS will likely be a better bang-for-the-buck. Again, I think you need to do a lot more research.

That's not even getting into what axle and gears you have. Doin this with a stock 35, she isn't going to last long.

 

[lBasket]

Why not buy a car designed to be fast instead

 

[jeepTJ$]

Why not buy a car designed to be fast instead

whats the fun in that

 

[jeepTJ$]

Less than $6K will be a tight budget for turboing if you want reliable. Doable, but tight. Studs might not be within that budget, and honestly probably not needed. I think you need to do a lot more research. Go read through Jezza's stuff. Also, LS will likely be a better bang-for-the-buck. Again, I think you need to do a lot more research.

That's not even getting into what axle and gears you have. Doin this with a stock 35, she isn't going to last long.

ok will look into the ls and reasearch the turbo more

 

[lBasket]

whats the fun in that

I find it fun driving a car fast when it handles it well

 

[BlueC]

ok will look into the ls and reasearch the turbo more

Lets go ahead and pull the pin on the grenade, what axles and what gears do you have?

 

[BlueC]

I find it fun driving a car fast when it handles it well

You should sell that Beamer then and get a real car.

 

[MtPockets]

I have been running 6 psi for the last 9 years on a stock engine with no problems.

Could you tell us more about your setup?

 

[lBasket]

You should sell that Beamer then and get a real car.

That is not the car I'm thinking about when I say this... That's just the daily cruiser

 

[jeepTJ$]

its got dana 35s and a 4" lift might take it off , It got 35s with steel wheels all new suspension components and steering i pretty much fully redoing it

 

[ColoJeep]

Why not buy a car designed to be fast instead

What ??? , faster than a TJ ? Now that's crazy talk.

 

[jeepTJ$]

What ??? , faster than a TJ ? Now that's crazy talk.

Got the right idea

 

[Intimnasc]

I just did studs and head gasket that werent too expensive. Mine was pricey because I had to replace cam lifters and rockers. The cams for these things are getting hard to find even blanks for a custom grind are getting really hard. Someone on here turned me on to Newcomer racing.

 

[jeepTJ$]

I going to get APR head studs and a Fel-Pro 26211 PT - Fel-Pro PermaTorque MLS Head Gasket