[kcrown98gt]

how big is my stock 98gt's throttle body and whats a good size to step it up to with a stock engine

also whats a good cold air that will go through the fenders

oh and as soon as it gets out of the body shop im gonna be swapping in some 3.55's yes i know 3.55 isnt the fastest option but i got it all for free so if you know anything about changing the gears and have any tips im all ears thanks

[97GT4.6]

1. I'm not sure what size TB we have stock, but putting on a bigger one on a stock engine won't really benefit it at all.
2. Get a JLT. They are the best overall, fenderwell that actually gets cold air, and they are much larger.
3. Obviously, everyone here will tell you to get 4:10's to wake your car up, but 3:73's are also popular. 3:55's will be decent if you have a highway rearend in it now. Get them professionally installed by a reputable shop.

Hope that helps.

[Military98stang]

^
+1

[DeMello]

410s and jlt ftw

[stanglifemike]

JLT cai, Accufab t/b and intake plenum. 70 or 75 mm t/b will work, some will say a 75mm will rob hp but I have yet to see that on any dyno test.

[kcrown98gt]

ok thanks alot so looks like a jlt is what everyones agreeing on question is where can i find this bad boy at a cheap price

and still if anyone has tips for when i swap these rear end gears im open for options and none of them include taking it somewhere to have it done

[phoenix99]

if you swap your gears, don'T forget to change your speedo gears too otherwise your speedometer will be inaccurate.

Steeda.com sell the speedo gear at a pretty good price.

[stanglifemike]

Originally Posted by kcrown98gt ok thanks alot so looks like a jlt is what everyones agreeing on question is where can i find this bad boy at a cheap price and still if anyone has tips for when i swap these rear end gears im open for options and none of them include taking it somewhere to have it done

Here, you can buy directly him 1996-2004 MUSTANG GT JLT TRUE COLD AIR KIT 1996-2004 MUSTANG GT JLT TRUE COLD AIR Complete kit [CAI-FMG-9604] - $219.00 : Zen Cart!, The Art of E-commerce

[kcrown98gt]

thanks phoenix99 but ive already picked it out at steeda already and my speedos innaccurate right now anyways haha

and thanks for the link mike your awesome my next paychecks headed towards that bad boy

[stanglifemike]

no problem man, your going to LOVE that JLT!!

[HorsepoweR]

I have a question, my car had the BBK CAI on it allready when I bought it, would it be worth it to swap it out for a JLT CAI? or should I not even bother?

[97gt]

Its up to you if it were me i would sell the bbk and buy the jlt i am sure you will gain much more from the jlt since its much larger

[stanglifemike]

Yes, you will gain more with the JLT. I honestly dont think it will be more than 5 hp though, so you have to decide what 5 hp is worth to you. Just my .02

[kcrown98gt]

for those who doubted me my cars jacked 2 feet in the air right now axles are pulled and the whole housing for my gears is pulled all the bearings removed and the driveshaft on the ground im just waiting for my friend to press the bearings on the pinion for me then closing it all back up

[sxynerd]

All cold air kits are the same! The JLT intake may be a hair better because of the large diameter and the better volumetric efficiency but the gains would be nominal. Pick the intake that fits your budget and looks the best to you.

Some will argue that the Composite material is better for not heat soaking the incoming air but the air isn't in the tube long enough for it to matter.

I have a 75mm TB and I made 265rwhp with my set up with a stock 99 PI motor. Everyone that I have ever seen with my same mods only made 251-255. I do not think it robs any power at all. And on my S/C'd set up I say it helped more than harmed.

[jlaw98gt]

sell the 3.55's and get 4.10's and a pi intake or pi cams...

[NinetySixVert]

Go for the JLT cold air intake or JLT ram air intake. As far as a throttle body, it really just depends on what your plans are for the car. If you're doing some modest modding, getting an Accufab 70mm with plenum is hands down the way to go. I wouldn't say a larger than 70mm throttle body would rob horsepower, but it won't offer you hardly any gains. As for your gears, yes absolutely take them to a reputable shop and have them professionally installed as 97GT4.6 said. Nothing wrong with 3.55's either; they still are a step up from stock gears, and you can't beat a free price tag haha. Good luck with the 'Stang.

And to HorsepoweR: Just keep the BBK CAI. As sxynerd said, they're all nearly the same. Your time and money could be used much better with other aspects of the car.

+1 sxynerd!
+1 97GT4.6!

[kcrown98gt]

thanks alot ninetysixvert and yah if its free im always ok with it

just an update to all the haters on doing the job myself i just got the car back on all 4's with the new gears installed the whirring of the old worn out bearings is gone and it runs smooth as glass changed it all in my driveway theres a significant difference in acceleration but i still need to change my speedo gear...it only took two days and some help from my little brother...boosted!!