hey guys, bout to take the 99 hb back to the shop and leave it fo a while.....recent 98 usdm gsr swap with header and 2.5 ex..........running 99 si ecu with butterflies open( running check engine light for second o2 sensor after the cat)......anyway, trying to locate obd1 gsr ecu and jumper, but i need one last thread about cams and head upgrades. while the car is at the shop it will get p&p and cam/valve spring revamp......do i go itr or ctr what springs with witch cams and if i should use mix the cams witch ones and why......guys i'm sorry to ask this **** again but like many, i enjoy this board and veiw far more then post on it......thanks h/t

 

skunk2 everything for the head Stage2 would be my cam recommendation, as long as you upgrade the valvetrain. Skunk2 again.


[Modified by JDM B-Series, 10:48 PM 3/4/2003]

 

well sir if you my friend are a baller, or stunna if you prefer i would recommend jun 3's they will make the most use of your port and polished head, and revving to 9500 or higher with thos things are supoer sexy and fun

 

Go with portflow valvetrain if you got the bling bling.

 

ITR & CTR exhaust cams are the same. The CTR intake cam has 3 degrees more duration. Not much difference, but the intake cams are different. For springs I'd say move your intake springs to the exhaust side and pick up ITR intake springs.

 

EF-1 all the way

 

thanks guys, any other suggestions before i drop some $$$$

 

Crower 403's, I had Skunk stage 2's first, great if you up the compression on the car, but if you are runnin stock compression pistons, dont do it. Just got rid of my JUN III cams lack mid-range power. but great after Vtec crossovers, thats with 12:5.1 compression, 66 mm TB, skunk2 intake. Crower 403s just put em, in didnt even tune yet, and they already feel better than the JUNs. Mid-range is great, (even with the Victor x manifold), vtec crossover feels just as good as Juns.

 

Crower 63403s are great cams at a great price. I'll second that one, but they too benefit from more compression. They have an ABDC of 46 degrees which is far less costly in compression than the skunk2 stg2s but still drops your dynamic compression. Takes some time to tune them, but I've certainly been happy with them since I put them in nearly 2 years ago.