Tell me why I shouldnt

Not trying to step on Dozer's toes, I think its a cool idea. But the Currie axles add durability. A turbo may add some drivability issues. :dunno: I'd be cautious.
 
more power is fun.... the 4.7 has some scoot to it.... but after years of playing childhood shop rat around an import shop ive seen the horrors of turboing motors that never should have been ;) now supercharger is a different story, how bout you dig up a supercoupe blower for it? got any ideas about what your gonna do about fuel man? the 4.0 comp isnt tuneable
 
shortxjdoug said:
more power is fun.... the 4.7 has some scoot to it.... but after years of playing childhood shop rat around an import shop ive seen the horrors of turboing motors that never should have been ;) now supercharger is a different story, how bout you dig up a supercoupe blower for it? got any ideas about what your gonna do about fuel man? the 4.0 comp isnt tuneable
Click to expand...
The whole set up was free so thats why I have it. Every build i see is a OB1 jeep and mine is OB2 so i have no idea honestly. I have to put a v8 in dads jeep, do hydro assist on my jeep , buy new leafs (my jeep) and still do a cage before my jeep will see this turbo.
 
dozer_xj said:
well i do have 35's and 60s with 4.10s. most of the time the 4.0 does fine but more power would be welcome. I only plan on running 5 psi of boost
Click to expand...

Don't get me wrong, it'd be cool to have a lil' extra umph. Definitely something that's not a common mod that you see everyday. So, it'd be cool just for that alone but, I think I'd regear before I went to the time and trouble of doing the turbo. Seems like it'd be alot easier..........and I like easy.
 
shortxjdoug said:
more power is fun.... the 4.7 has some scoot to it.... but after years of playing childhood shop rat around an import shop ive seen the horrors of turboing motors that never should have been ;) now supercharger is a different story, how bout you dig up a supercoupe blower for it? got any ideas about what your gonna do about fuel man? the 4.0 comp isnt tuneable
Click to expand...


Yeah adding forced induction to a Honda turns a 300k motor into a 75k motor! SC's are easier to pull off but aren't nearly as cool as a turbo! Plus running low boost is far less devastating. Dozer, check out Brysons turbo thread. That may be the bible of turboing an OBD2 XJ.
 
HaleYes said:
I think I'd regear before I went to the time and trouble of doing the turbo. Seems like it'd be alot easier..........and I like easy.
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i was afraid this would be brought up and i prob need to...but what about when you need some mad crazy wheel speed? if you motor is wraped out but the tires are spinning slow, it hard to clean out the tread or ramp up a rock ledge.
 
dozer_xj said:
i was afraid this would be brought up and i prob need to...but what about when you need some mad crazy wheel speed? if you motor is wraped out but the tires are spinning slow, it hard to clean out the tread or ramp up a rock ledge.
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You can still regear and not go crazy deep. I ran 4.10's and 33's and it was a dog. I can't imagine 35's. I bet you'd be happy with 5.13's maybe even 4.88's.

I run 33's and 4.88's and I tipically don't need to use the skinny pedal like that. To each his own.....
 
I'm guessing the turbo is going to be fairly small if it came from a 4cyl car. Can't remember what you said it was off of. Would probably spool up quick on the cherokee, but be lacking in the top end of your rpm range. Maybe find another and go for two turbos?

Note: it has been a long time since I've even looked at a turbo, so I appologize ahead of time if I'm putting out any bad info.
 
Prepmech said:
I'm guessing the turbo is going to be fairly small if it came from a 4cyl car. Can't remember what you said it was off of. Would probably spool up quick on the cherokee, but be lacking in the top end of your rpm range. Maybe find another and go for two smaller turbos?


Note: it has been a long time since I've even looked at a turbo, so I appologize ahead of time if I'm putting out any bad info.
Click to expand...

it shouldnt make too much of a difference since he will be running low boost numbers..... the smaller turbo should work really well in an offroad app because of the quick spool time.... now its just gotta stay dry and he'll possibly need to assemble a standalone fuel management system
 
Trying to remember what Avenger did on their supercharger kits. If I recall right they had an inline pump that increased the fuel pressure, and regulated it at the fuel rail, and added a return line from there. So instead of having a static fuel pressure from the stock pump, they had one that they regulated at the rail with vacuum. I don't remember any modifications to the electrical side of the injectors. If he isn't running much boost, could he get away with something like that?
 
Prepmech said:
Trying to remember what Avenger did on their supercharger kits. If I recall right they had an inline pump that increased the fuel pressure, and regulated it at the fuel rail, and added a return line from there. So instead of having a static fuel pressure from the stock pump, they had one that they regulated at the rail with vacuum. I don't remember any modifications to the electrical side of the injectors. If he isn't running much boost, could he get away with something like that?
Click to expand...


i think so.... the pump has the pressure to feed it i guess its a matter of regulating it properly and getting the proper flow on the injectors.... i know when dan put the blower on his 4.3 chevy it was begging for more fuel from both v6 and 350 injectors.... but the tbi 454 injectors were too much, they ended up having to get a custom chip flashed for it..... it would seem, and correct me if im wrong that it would be easier to get away with it that way with a blower than a turbo.... seeing as the s/c has a steadier gradient of increased boost since its running directly off the engine..... with the snail i see mashing the gas and dumping fuel in the motor before the turbo catches up as not being very fun at all
 
Prepmech said:
I'm guessing the turbo is going to be fairly small if it came from a 4cyl car. Can't remember what you said it was off of. Would probably spool up quick on the cherokee, but be lacking in the top end of your rpm range. Maybe find another and go for two turbos?

Note: it has been a long time since I've even looked at a turbo, so I appologize ahead of time if I'm putting out any bad info.
Click to expand...
I talked to yj and cory on pirate. he does alot of 4.0 motor stuff annd he has a turboed yj with a 4.5 stroker in it. I gave him the numbers off my turbo and he said it was perfect. the honda car it was on was pushing 12psi ( i wonder why the motor blew)

shortxjdoug said:
seeing as the s/c has a steadier gradient of increased boost since its running directly off the engine..... with the snail i see mashing the gas and dumping fuel in the motor before the turbo catches up as not being very fun at all
Click to expand...
I know there are fuel presure regulators that run off of boost. I really cant add much more. I havent researched it enough yet. I have alot of stuff to get done on my jeep and dads before i put this windmill on my jeep.
 
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