I'm running 24lbl ford motorsports injectors @ 50- 55 psi. at the track 60psi. (still some tuning needed. The motor makes around 400hp and runs no prob. Since my bsfc was around .44-,45 on the dyno and it made 400hp x .45=180 lb/hr 180lb/hr / 8 = 22.5 lbs/hr most na motors are .45 or .55.. 24 lbs injectors may gain you a few hp and some drivability.. since you could run a lower press. But back to back testing is advised. (remember if you increase the fp.. your flow rate changes..) -----Original Message----- From: trax [SMTP:trax@frederickmd.com] Sent: Wednesday, May 31, 2000 4:00 PM To: Gmecm@Diy-Efi. Org Subject: When to swap injectors I'm trying to figure out when you should swap injectors ... more specifically, what duty cycle is considered too much and how to determine your current duty cycle. I have a '90 IROC 350, cammed, AFR heads, TPIS MiniRam, exhaust ... and the stock 22lb injectors. I'm running around 50psi of FP and I have modified the fuel tables such that I get upper 800's in the O2s at WOT across the board. Everything seems wonderful and everything is running great. But, when SHOULD you switch injectors. Is there a magic calculatable value that indicates that you should swap to a larger set of injectors? Tim ---------------------------------------------------------------------------- To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes) in the body of a message (not the subject) to majordomo@lists.diy-efi.org
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