Back in the 2V game again..a few Qs

[DavidCroft]

Well after having a 96 GT, a 97 Cobra with a fully built motor and every single bolt on, then going to a gas saver SVT Focus for a year, I am finally back in the 2V game.
On Weds of this week I bought a 2004 5speed white GT with 15K miles. Long Story short I plan on keeping it N/A. With that being said I want to do a plenum and TB along with full exhaust, JLT intake.....and eventually heads with stage 2or3NA cams. But which TB size should I go with? 70 or 75mm knowing I will always be N/A? Appreciate your input.

 

[Cobra123089]

i would only go to 70mm personally without Forced induction, but there are people that may disagree. i think i saw a post one time where on a stock car with a 75 mm got 1-2hp more than a 70mm.

 

[thomas91169]

if youre gonna go all out n/a then why not try to give your intake the best flow it can right off the bat. its one thing you dont have to worry about later.

 

[the98stang]

But which TB size should I go with? 70 or 75mm knowing I will always be N/A? Appreciate your input.

They are both pretty worthless. You might see 5-7WHP gain with a plenum/TB combo. Why waste your money? A fast N/A 2v is going to cost a ton of money.

 

[MyBloodRunsBlue]

70

 

[ADRENLN]

i dont think it makes a big difference between the 2. anyway, i would go with the 75mm if you think you are going to go all out na. i mean everything....actually, if you are going all out na, you should just get the bullitt intake and go from there.

 

[Jackie Chan]

skip the cai

 

[Stang|ess]

if you plan on making your car decently quick, it's cheaper to go with a blower, than to keep it na.

*i meant if you're going to keep full interior, not go with 4.56+ gears, drag springs, don't have john behind the wheel, etc. if you want a decently quick street car, go with a blower.

 

[Will Smith]

I agree with the blower on a stock motor at bout 9psi. but if you choose to stay N/A I would first put if I could do it over again money into a nice intake not just a plenum and cams and some LT's or midlengths.

 

[Rickey_Bobby]

Until someone comes out with a (good) aftermarket intake for the 4.6, staying NA will cost more than FI, and be a lot slower. You CAN however make a quick NA car then bolt up some nitrous.

I would suggest stage 1 cams, LT's, bigger MAF, 30# injectors, bigger fuel pump, cold air intake w/ K&N, stronger clutch, and then finally, a nitrous system.

Stage 2 cams are overkill, and would require valvetrain modification.

Stage 3 cams would SUCK without a fully ported and built head.

Also, if you would like to get into the motor... you can always do some I-beam rods and flat top pistons for about $760 in parts. Would raise your CR to 9.5-11.5:1 depending on what piston you go with.

I have seen one stang running stg 2 crower cams (with new valve springs), LT's and the I beams/pistons running 11:1 compression... It was a bada$$ NA car.

 

[DavidCroft]

I already know N/A is slower than FI and is quite a bit costly. The Heads and cams I'm talking about are probably 1-2 years down the road. With just the basic bolt on stuff, what are you guys recommending for TB size?

I guess I should have made myself more clear.

 

[scupking]

Get the kit form RPMouttlet its only $199 and comes with a Pro Products 75mm TB and a Plenum.

 

[tmoneyballin]

First two mods: Long Tubes W/ X pipe, Gear. If you want to get the most bang for your buck, or get the mustang to buck - those will do you right. If you want the thrill of an additional 20 hp and sound then go for a cheap O/R X pipe, but if you have the money to spend go all out with long tubes, especially if you plan on keeping it N/A. I think everybody that ends up building their car regrets not spending the additional money to get the best exhaust front the start. I mean you have to look at your immediate VS. long term goals. Both of those mods would suit both. If you are looking to make a statement then small 5 hp mods will get spanked if they are your bread and butter. Those 2 mods could show up some of your chevy's out there, just depends on what you are looking for...