intake question

[JACKED88]

Will a 4.0 intake and injectors out of a 99 WJ give a 96 4.0 in a ZJ better performance???

[jimoshel]

No. '96 and '99 use the same injectors.

[JACKED88]

No. '96 and '99 use the same injectors.

OK but the intakes are different. Thought I heard/read the newer 99 intakes have better air flow than the 96 does.

[HOrnbrod]

OK but the intakes are different. Thought I heard/read the newer 99 intakes have better air flow than the 96 does.

 

Yes they do. Ignore whomever posted the previous reply. Optimum injector size has to be dialed in by the A/F ratio tuning. Read up on the 99+ manifold here:

http://www.jeepstrokers.com/forum/viewt ... Comanche91

 

I picked up about 12HP on the dyno, and a bit better mileage. Unbuilt motors average about a 9HP gain. Lots of good info on performance mods on that forum - you won't get much here. :D

[jimoshel]

OOOPS! I stand corrected. :headpop:

[JACKED88]

OK but the intakes are different. Thought I heard/read the newer 99 intakes have better air flow than the 96 does.

 

Yes they do. Ignore whomever posted the previous reply. Optimum injector size has to be dialed in by the A/F ratio tuning. Read up on the 99+ manifold here:

http://www.jeepstrokers.com/forum/viewt ... Comanche91

 

I picked up about 12HP on the dyno, and a bit better mileage. Unbuilt motors average about a 9HP gain. Lots of good info on performance mods on that forum - you won't get much here. :D

OK, remember that j/y motor one of my sons bought at a j/y for his 99 WJ and had so much trouble with getting water in the oil? Long story short, when we took back his original motor as a core, we didnt give um his intake or injectors.

With that said ..... I have another son that ownes a 96 ZJ and he also heard/read/whatever that a 99 intake on his 96 motor would give it a few more hp and therefore make it perform a little better.

With tha apparently being true, is there anything else he'll need to do other than bolt that complete 99 intake on and go?

[HOrnbrod]

I picked up about 12HP on the dyno, and a bit better mileage. Unbuilt motors average about a 9HP gain. Lots of good info on performance mods on that forum - you won't get much here. :D

OK, remember that j/y motor one of my sons bought at a j/y for his 99 WJ and had so much trouble with getting water in the oil? Long story short, when we took back his original motor as a core, we didnt give um his intake or injectors.

With that said ..... I have another son that ownes a 96 ZJ and he also heard/read/whatever that a 99 intake on his 96 motor would give it a few more hp and therefore make it perform a little better.

With tha apparently being true, is there anything else he'll need to do other than bolt that complete 99 intake on and go?

 

http://www.mallcrawlin.com/forum/showthread.php?t=6355

[JACKED88]

I picked up about 12HP on the dyno, and a bit better mileage. Unbuilt motors average about a 9HP gain. Lots of good info on performance mods on that forum - you won't get much here. :D

OK, remember that j/y motor one of my sons bought at a j/y for his 99 WJ and had so much trouble with getting water in the oil? Long story short, when we took back his original motor as a core, we didnt give um his intake or injectors.

With that said ..... I have another son that ownes a 96 ZJ and he also heard/read/whatever that a 99 intake on his 96 motor would give it a few more hp and therefore make it perform a little better.

With tha apparently being true, is there anything else he'll need to do other than bolt that complete 99 intake on and go?

 

http://www.mallcrawlin.com/forum/showthread.php?t=6355

OOPS!!! Didnt know I posted tha same thing twice.

:doh: Come to think about it I did have some kind of trouble and had to re-submit it.

[JeepcoMJ]

follow hornbrod's statements...he's very knowledgable on these intakes.

 

I have a 99 intake on a 95 motor that's bored .030 with a comp. cam, borla header (not direct bolt-in btw) and 62mm (I think...may be 60mm) throttle body. very good throttle response, great power, and I get 16-18mpg city, 19-22mpg highway. that's running 35x12.50 m/t's with 4.10 gears.

[dakineJ]

follow hornbrod's statements...he's very knowledgable on these intakes.

 

I have a 99 intake on a 95 motor that's bored .030 with a comp. cam, borla header (not direct bolt-in btw) and 62mm (I think...may be 60mm) throttle body. very good throttle response, great power, and I get 16-18mpg city, 19-22mpg highway. that's running 35x12.50 m/t's with 4.10 gears.

Did the intake contact the Borla? Have you thought about 4.88's?

[JeepcoMJ]

follow hornbrod's statements...he's very knowledgable on these intakes.

 

I have a 99 intake on a 95 motor that's bored .030 with a comp. cam, borla header (not direct bolt-in btw) and 62mm (I think...may be 60mm) throttle body. very good throttle response, great power, and I get 16-18mpg city, 19-22mpg highway. that's running 35x12.50 m/t's with 4.10 gears.

Did the intake contact the Borla? Have you thought about 4.88's?

 

 

yes and yes. and no, I can't afford the gears.