99+ intake upgrade recipe

[pma4x4]

I would like to make sure i have this parts list correct. If i am missing anything, could some one point it out?

1996 XJ 4.0

installing and/or using following items
'99+ 4.0 intake manifold
new Edelbrock Header '91-'99 #65923
'99+ PS bracket and tensioner pulley
New fuel injectors from Precision auto injectors '96-'98
'96 original fuel rail
'96 Bored TB from the fastman
manifold/header gasket for '96 4.0

Exhaust is done. I will just have to get a new down pipe after this. Also a cold air intake is in plans during this project.

I know there is the possibility of plumbing of vacum lines and lengthening of sensor wires. I am wondering if i got it all right here

 

[CanMan]

PS bracket and pump is the same for 96 and later.

Otherwise, you need to extend the wires for one of the sensors, the intake air temp sensor IIRC, and move some vacuum lines.

 

[hubs97xj]

Might as well throw new hardware for the manifolds on there too.

 

[pma4x4]

Might as well throw new hardware for the manifolds on there too.

I am in AZ, no rust down here. so i think the hardware is good. unless your thinking just stretched.

 

[hubs97xj]

Mine were in good shape, going by appearances, but I'd read on here that they should be replaced, so I went for it- another $15 for hardware and spares seemed like cheap insurance. I don't know if it's necessary, but that's what I did.

 

[pma4x4]

Makes sense. Thanks

 

[REDXJ4FUN]

I didn't have to exten the wires i just moved the sensor

 

[userbmx1315]

so is it just 'bolt on' and go? all i have is the intake. no brackets or anthing. (except on my 98 when i swap the stroker)

 

[pma4x4]

From what Canman says and i have found it in the last few days, if you have a late '96 or newer PS bracket then yes it is a bolt on. like said before you may have to extend vacum lines and or some wires but some have and some have not so you wont know till you do it.

My header is in, still waiting on Injectors. I won the auction for the 99+ intake so that should be here middle of next week. and the TB from Fastman i may have on Saturday. Airflow Snorkel should be in late next week as it had to come direct from Australia.

Exhaust shops says they might be able to get 2.25 pipe up for a down pipe but at least i wont have that stupid clearance dent in it anymore.


I am taking pics, I may do a write up. Of course i have threatened people with write ups before.

 

[pma4x4]

Now this thing is on hold for another week as the guy i won the auction from for the intake just shipped it slow boat brown truck when the auction stated Priority mail. I was just reminded why i dont do ebay no more.

 

[pma4x4]

I recieved the TB from fastman. I posted some pic to show the quality work and difference.

Pics are here
http://www.arbrtek.net/xtek/fastmans.html

 

[pma4x4]

Well, the upgrade is done. for a 96 and newer it is just a 99+ intake, and gasket. I moved the IAT sensor to the port just behind the TB. There is not much slack left in the wire but it still fit with no mods.

Pics are here.
http://www.arbrtek.net/xtek/airfueltek.html

 

[Dr. Dyno]

Nice job. I hope I can get my '01 XJ intake/PS pump/PS bracket with idler pulley on in the next couple of weeks. Not easy when you have a busy work schedule and you have another project going (1995 Mustang GT).

 

[pma4x4]

Went and di the test drive and gained power across the entire band but more so in higher Rs. Gas mileage is up +2. So all in all it turned out. I can actually bark my tires if I really want to.

 

[dakineJ]

Nice,good thread,thanks.What tranny,gearing,and tire size are you running?

 

[98 jeepjeep]

you should have upgraded the injectors to the Bosch ford style 19lbr's.....I have a set if ur interested.

 

[pma4x4]

Nice,good thread,thanks.What tranny,gearing,and tire size are you running?

Sorry, for the delay in response. Just got back from our annual AZXJ run.

AW4
3.54s
31 BFG ATs

 

[dakineJ]

Sorry, for the delay in response. Just got back from our annual AZXJ run.

AW4
3.54s
31 BFG ATs

Good to know,thanks

 

[pma4x4]

you should have upgraded the injectors to the Bosch ford style 19lbr's.....I have a set if ur interested.

Thanks for the offer but I went with a rebuilt set from Precision Auto. They are ford injectors running at around 24lbs.

 

[pma4x4]

This is been a excellent upgrade for me. I built it for more top end power for highway use as my wife and do a lot of overlanding. The end result was power through out the entire RPM range, crisper throttle response, smoother idle, easier starting and 2+ mpg gain.