just finished up my lil bro's EG gsr swap. no CELs. everything is hooked up correctly ie. VTEC selenoid, VTEC oil pressure, IAB, knock sensor, etc. anyways, I thought that the dual butteryfly intake manifold opens around 4400rpm and VTEC at 5500 rpm? the only time I feel a pull is at 6200 rpm. can the stock rpm gauge cluster be off? I'm using an EX/SI stock cluster. I can rev it to 8k no problems. I'm pretty sure the p72 that we're using is stock. any thoughts?

 

If it's a stock GSR engine than the VTEC is at 4400 and the secondaries open at 5800.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RynoDyno312 &raquo;</TD></TR><TR><TD CLASS="quote">If it's a stock GSR engine than the VTEC is at 4400 and the secondaries open at 5800.</TD></TR></TABLE>
exactly what I was going to say, I thought the iab's were a hair lower but sounds close enough for me!

 

yup, stock motor, stock p72 ecu. the only mod is a short ram intake. so anybody know why it's kickin in at 6200rpm?

 

It isnt, what you are hearing are the secondaries opening up, they open @ 5750. Your stock tack is off a little from the factory about 500 pms. Vtec on a stock gsr is not very noticeable. But if you were to get a a chipped ecu with a different vtec crossover point the difference would be night and day.

 

cool. thanks. just weird that the secondaries sounded like they would open up so late.