My 4.0 Build.....

Hey everyone
After a lot of reading and research, I've come up with a list of performance mods I plan to do on my 2001 sport 4.0 SOHC engine. The list is in order. In the end getting all this will take a very long time. With any luck my x will be pretty fast after all this.

Stage 1 Performance
1. Mac CAI Intake Kit (~170) (Complete)

2. Cat-Back Exhaust (Dual) ($300) (Complete)

3. Throttle Body (FRPP 70 mm) (~100) (Completed)

4. Headers-to-Muffler Exhaust (removing two or three cats and replacing with a freeflow) (~$200)

5. Custom Fog-Light Ram-Air Mod (see Jakee's ride) (~$50)

6. SCT X-Calibrator 2 w/ 3 tunes (www.hensonperformance.com) (~$400)

7. MAF Housing (73 mm) (www.zabtech.com) (~$245)

8. Crankshaft Underdrive Pulley (www.hensonperformance.com) (~$255),
Alternator Overdrive Pulley (~35), Water Pump Underdrive Pulley (~85) (www.underdogperformance.com)

9. Headers (www.explorerexpress.com) (~$385)

10. Electric Fan (Flex-a-Lite Black Magic 150) (~$206)

11. Limited Slip Differential

12. 4:10 Gears

You can see this list and pics on my cardomain page (link on my sig)

This list is very splotchy and incomplete. I was hoping to get some feedback on it. What do you guys think?

 

[Patton]

I wouldn't get the 150 if I were you, trust me on this. I made that mistake. The 180 is the best and It's not hard to install.

What are the reasons? The 150 is in my budget.

When you to the screw adjustment, inspect the throttle cable and make sure there's not a pc of wire frayed. (the inside of the cable is made of little wires) That could also cause sticking.

I've fixed the sticking by adjusting the screw as you said. Unfortunately the head of the screw came off JUST as I was finishing. Hopefully I won't be needing to adjust that screw anytime soon.

 

[Jakee]

Patton - Because it's so loud. that's the only reason. I just don't want you to settle for something when you could save up for another week and get the 180. However, if you get the 150, you'll be okay; it's the noise that I didn't like.

 

[Patton]

I decided to take a break from performance and get tail light guards and a westin safari light bar. The tail light guards are on and I'm about to order the safari bar. I'm done with the exterior for a good while after this.
The next performance mod I think I'll do is the re-tune. It'll be about $400, $500 if I want Jah to come and tune it personally at my location. It'll be a while before I get that sort of money together.
The problem with my budget is I get large bumps in the amount I can spend on my car, rather then a steady flow of cash. If I get a large amount I can spend, and there is no indication of any more coming in anytime soon, I usually go ahead and spend it (because I am so damned impatient. But I am also deathly afraid that I will piddle it away on food and stuff). Say I get $200spending money, I'll see how long it will be until I get any more money, and if it will be a while, I'll probably spend that $200 on the removal of the cats or something, rather than stash it away and save it for the XCal2. So my point is I'll probably have a lapse in patience and purchase something cheaper that the XCal2, between now and then. Such as: electric fan, cat removal job, underdrive pulleys, C&L MAF housing.
Anyways, time will tell. Sorry about my rant.

 

[Jakee]

patton - I don't think you really need James to come up and tune you with a N/A project like this. Or, am I missing something?

 

[Patton]

patton - I don't think you really need James to come up and tune you with a N/A project like this. Or, am I missing something?

No, you aren't missing anything haha. It's just an option we had explored. Seemed kind of cool to me. But no, I doubt it's particularly necessary.

 

[Jakee]

Actually, I've thought about getting him down here even with my N/A goal.

 

[Patton]

Actually, I've thought about getting him down here even with my N/A goal.

After your $400 investment into the SCT xcal2, seems like a smart $100 to maximize that investment with the best tunes and A/F possible.

 

[Patton]

The new throttle body is causing a problem with the cruise control. Whatever speed you "Set Accel", the cruise control will hold the speed 5 mph lower. How hard is it to fix this?

 

[Jakee]

You need to adjust the cruise cable. It's the other cable connected to the TB. There's a metal clip that you have to remove (be careful removing it cuss it can pop off and fly somewhere). After it's removed, adjust the cable, and replace the clip. It's not that hard to do.

 

[jah81592]

Dont remove the cats till you are definately ready for a computer tune. This will definately set a cel.-James

 

[Patton]

Dont remove the cats till you are definately ready for a computer tune. This will definately set a cel.-James

Will do, but I don't understand the last sentence?

Thankyou jakee, I'll be trying that soon.

I've updated my original mod list. It's now more complete with pricing and links. I hope this can help some others who plan to build up their SOHC (and are anywhere near as clueless as I was coming into this). Only thing I'm not putting in there is porting and smoothing out my TB, because I don't know anything about this. I read a while ago about asking Zabtech performance and they'll do it for like $100? Are they still doing that?

 

[aldive]

I read a while ago about asking Zabtech performance and they'll do it for like $100? Are they still doing that?

Yes.

Contact Todd at http://www.zabteck.com/

 

[Jakee]

Ahh man. Porting the TB. How about waiting on this one? This will mainly give you throttle responce. I'm not saying NOT to do it but maybe save for something else?

 

[Patton]

Ahh man. Porting the TB. How about waiting on this one? This will mainly give you throttle responce. I'm not saying NOT to do it but maybe save for something else?

Like the XCal? I agree. It's just me and the whole saving money thing don't get along. Then again you already knew that.

 

[Jakee]

you must learn young grasshopper.

 

[Patton]

question 2 - I cut the combs out and then smoothed out with a flap wheel. You should be okay without it, but I liked the volume with it.

Sorry but what's a flap wheel?

 

[aldive]

Sorry but what's a flap wheel?

http://www.caswellplating.com/buffs/flap_wheels.htm

 

[rocket 5979]

http://www.caswellplating.com/buffs/flap_wheels.htm

Flapwheels are great for smoothing metal, without all the chatter. I like to use the flattened flapwheels in my 4.5" grinder for smoothing transitions in tubing. The 80grit ones are smooth like butter but can also hog some metal when needed.

 

[Patton]

Flapwheels are great for smoothing metal, without all the chatter. I like to use the flattened flapwheels in my 4.5" grinder for smoothing transitions in tubing. The 80grit ones are smooth like butter but can also hog some metal when needed.

hmmm.... I should probably do that on that little TB spacer then...

 

[Patton]

Okay I filmed my 0-60 tonight for fun....
http://video.cardomain.com/clip.aspx?key=74F88A42B8601602
I hope you don't need a cardomain account to view it... if you do let me know and I'll put it on putfile.
I think it's around 7 seconds.