Originally Posted by superblackz 
Just curious when you had your JWT ECU how did you integrate the SAFC and why? Were you running rich/lean up top, or just looking for better control, or ? Looks like BC Stage 3 cams are very close to my JWT C2's with 0.500" and 272/272 vs. 275/275 with same lift. Of course the lobe profile could be different, etc.
What did you use for springs? Two main reasons besides life in general why my C2's sit in a box instead of in my JDM 10:1 motor in my SCC car (other B13 car already had S3's, not impressed), besides cost of Ti springs:
[INDENT]1) SCC managed 161 whp/137 ft-lbs with peak hp at 7300 rpm in the original USDM motor with ~100k miles on it. For them that was a peak improvement of +37 whp, but the JWT ECU is tuned for 91 CA gas, and maybe that hurt them. The also ran smaller HS header than my current SSAC. Not overly impressive, not compared to what I have today (better baseline than they did) -
2) I am already running 141 whp @~6500 rpm/122 ft-lbs at ~5400 rpm. ~+20 peak hp up top with a significant shift into the higher rpm to get there isn't attractive. Also even with the power starting to drop around 7400 rpm, it hits peak and stays pretty flat from 6200 to 7400 rpm. That makes the power very usable across a wide range of rpm you tend to use on the road courses w/o making any sacrifice as a DD. [/INDENT]
If I just stay "in-class" for Time Trial/Time Attack reasons I need to address some richness in the upper range which probably hides a peak power at least 145 whp with the stock JDM motor's cams.
Bottom line is in my mind I want to be able to reasonably expect 170-175 whp with the C2's in the 10:1 motor or it's not worth it, and not going to be competitive in-class. I'd also like to see it making steady power to 7500-8000 rpm, despite my dyno cut it actually pulls strongly to 7800 rpm (8000 indicated) before cut-off (just protecting against missed shifts, etc.). I also don't want to drop the $$$ on springs and retainers and a new ECU or SAFC or both, not when that plus the cam cost will approach or pass the current going rate for a decent VE motor.
Also any and all suggestions welcome
TIA, sorry if asked and answered re:springs and your change to SAFC, I didn't find it. Nice results!
Supertech Dual Valve Springs and Retainers for SR20DET
$360 for double valve springs and retainers.. Cheap as chips! And plenty of room to "grow" as they're good for 16mm of lift!
Before you ask, yes they work, and work well. I run C2s with this valve spring and retainer combo, have been for the last year or so.
Here's a link to my build thread. Please do note that dynos over here in Australia read lower than US and I'm using a AUDM 9.5:1 sr20de.
Vumnoo's sr20de Pulsar Build
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