How much real HP will I gain with these mods? - Honda Prelude Forum

ProZach · 09-05-2003, 11:10 AM

Hey POL,
I am doing a buildup on my Prelude Si. I have an H23 and I am putting on:

AEM Cold air intake
Greddy catback
MSD ignition (Full system including ignition control, wires, blaster coil)
DC header
STR Cam Gears
Denso plugs
Jet Chip
and a clutchmasters clutch.

What type of horsepower increase do you think I will get? Is there anything else I should do? We are going to dyno it, I just want some baselines to go on. On the way is a full hi-flow system from Magnaflow. For anyone interested, the buildup will be featured on NOPI Tunervision on Spike TV. Its on Sundays at 11:30 on Spike.
-Zach

cantdrive55 · 09-05-2003, 11:17 AM

Don't even bother with the Chip and cam gears. The Ignition won't do much either, the honda ignition is fine for a car with only bolt ons. With the I/H/E, I'd expect somewhere around 15-20WHP gain. I'd recommend some underdrive accessory pullies over the cam gears and jet chip.

PatrickC1026 · 09-05-2003, 01:39 PM

I just did the I/H/E mod with AEM CAI, DC CC headers and Greddy SP cat-back on my '92 Si and it gained 14 WHP.

preluda92 · 09-05-2003, 01:42 PM

If your going to be spending some time on the dyno. You might consider a V-AFC(given you have an H22, otherwise a S-AFC) They give you enough control over your fuel map to extract the most out of the other bolts-ons without worry of messing things up real bad. And, if your good you can optimize your VTEC engagement point.

SlowSi · 09-05-2003, 08:21 PM

^^ He said he has an H23. NOT VTEC.

Absolut · 09-05-2003, 11:46 PM

Quote:

Originally posted by SlowSi
^^ He said he has an H23. NOT VTEC.

Then an S-AFC would be a wise investment.

brendon2k · 09-07-2003, 01:22 AM

I agree with Ryan on about every point. Ignition is only really needed if you are going FI. I would go with pullies though.