I have an 03 CObra I just bought and need some help I plan on putting on a mac prcahmber with a mac ss cat-back along with a K/N FIPK and new TB I also want to add pulleys heat excahnger and a programmer along with a professional tune My questions are:

1. Should I get LT's

2. What all pulleys should I get I am confused by all the differnent kinds. I went to RPM Outlet and am probably going to shop from there but I have no idea what to get. They got kits but i don't know which one I need to get. Any links to what I need or answers would be appreciated

3. Where would I go about getting my supercharger ported (You can do that Right) and my car dynoed and tuned. (I live in the cincinnati area if anyone here lives in the area please recommend I place)

Thanks

 

I'm looking to get 450-500 hp by the way so make anysuggestions you can I am new to the Ford world i just got rid of my jeep

 

on rpm outleft it shows you the horsepower gain and the size of the pulley just look and deciede which one you want the most.

 

LT's are worth a little bit stock, but that will increase as you add boost. I say go for it. Lethal performance has a good deal goin right now. Check'em out.

As for pulleys, that would depend on whether or not you are going to do all of this at once. Port and pulleys. If you port your blower, you are gonna want to add a lower pulley along with an upper. Some like a 2.76 upper with a 2lb lower others like the 2.93 with a 4lb lower. Either way they will be close to the same power level. If you are going to do the port job later on then definitely get 2.76 for your stock blower.

Here are some links for parts.

Moderators if you dont allow non sponsored linking please remove and accept my appology.

http://www.lethalperformance.com for all your parts. They carry it all and offer incredible customer and most importantly technical support.

http://www.stiegemeier.com/index1.html Do not let anyone but these guys port your blower. No matter what you hear. They are the benchmark.

Good luck

A

 

I would recommend the Reichard Racing Ultra-grip upper pulley! This is the only pulley on the market that has a patent design nonslip grooves!! They are awesome!! On my last 03 cobra, I had a 2.9 upp and a 4 lb lower on a nonported Eaton. I had a Metco snub idler to decrease belt slip, LFP heat exchanger, magnaflow catback and it laid down 475 rwhp and 518 rwt. If I would have added a ported blower, my rwhp would have been over 500. Steigmier is your guy for ported blowers and throttle bodies! He has 3 different stages of porting. The only negative about going with a very small pulley up top is increased belt slip. Even with a snub idler, you increase the chances of slip, the smaller you go. That is another reason most cobra owners are adding lowers and keeping the upper a little larger. If I can be of any help, just p.m. me!

 

SO the "e" kit from rpmm that comes with a K/n FIPK, tuner, TB sparkplugs ,a 2.75 mm blower pulley, a aux idle pulley, and a gator back belt would work along with their crank pulley kit? IF so what pound crakn should i get 2,4,6,8. srry to be asking so many questions just like I said I am new to the ford world and don't know all the in's and outs

Thanks

 

If you add a 2.7 upper pulley, I would not recommend a larger lower pulley, especially on a non-ported Eaton! This will create way too much heat and cause excessive heat soak!! If you are considering a lower pulley kit, I wouldn't go no smaller than a 2.8 and a 2 lb lower. This combo would give you around 15 lbs of boost. If you exceed 12-13 lbs of boost, I would also recommend a good aftermarket heat exchanger. Otherwise, when your IAT temps exceed the norm, your computer will pull timing and you will lose HP and torque! The 2.7 upper pulley by itself will yield you around 14 1/2 lbs of boost. Make sure when you add extra boost, you change your plugs to a colder plug and gap them accordingly.