After dyno tuning - Honda Prelude Forum

00LudeSH00 · 09-06-2008, 02:55 PM

Whats up guys, im new here to this forum. I just went and had my car dyno tuned the other day. I ended up with 205whp and 184 wtq. I run a 2000 supercharged prelude with a 9lb pulley. the previous time i was running 6lb pulley and produced 211 whp and 190 wtq. Since my first dyno tune on 6lb. I added a Crower stage2 turbo/supercharger cam. I ran a 13.9 with the 6lb pulley and shortly after i installed the cams i went to the track and ran a 14.4. Does anyone think that the problem could be the cams, cuase i have been reading that they say jsut to keep the stock h22 cams. I called crower and they said they should help gain some power. I was just wondering if anyone had any answers to why this may be and what other setups people were running. I did all the necessary fuel upgrades too after the 9lb pulley.

mgcshroomz · 09-07-2008, 05:59 AM

the guy at the shop didn't have any thoughts on why it is that you lost power?
if you have the money, swap ur stock cams back in and retune...

Qveon · 09-07-2008, 08:45 PM

Sounds like belt slippage. Are you using gatorback belts? Or they are loose.

00LudeSH00 · 09-08-2008, 05:33 PM

the guy at the shop wasnt sure if that could be it. The intake duration a .050" on the stock cams are 231 and exhaust is 234. The crower cams are intake at .050" Duration intake is at 233 and exhaust at 235. He didnt think it would hurt because they were so close. im thinking about swapping the cams out but thats a lot of work. But then the other day i was thinking and on the jr fmu there is a boost retard switch. And i do believe it was turned back 2 clicks and i think thats 4 degrees of timing per lb of boost. And i thought that on my Crome tuning program we didnt retard the timing per lb of boost. So im gonna try that and see if i gain any power. So im hoping that helps a little

00LudeSH00 · 09-08-2008, 05:38 PM

oh yea, about the belt. on my way to the dyno shop my belt started to shred. Something must have hit it and ripped it a little bit. it was on labor day and wasnt sure if i was gonna be able to find a belt. Luckily, autozone was open and they had 1 in stock. I ended up replacing it and being at the shop 1/2 hour late. it only took 20 minutes to replace the belt. But yea, i am using gatorback belts.

Qveon · 09-08-2008, 08:08 PM

Quote:

Originally Posted by 00LudeSH00

the guy at the shop wasnt sure if that could be it. The intake duration a .050" on the stock cams are 231 and exhaust is 234. The crower cams are intake at .050" Duration intake is at 233 and exhaust at 235. He didnt think it would hurt because they were so close. im thinking about swapping the cams out but thats a lot of work. But then the other day i was thinking and on the jr fmu there is a boost retard switch. And i do believe it was turned back 2 clicks and i think thats 4 degrees of timing per lb of boost. And i thought that on my Crome tuning program we didnt retard the timing per lb of boost. So im gonna try that and see if i gain any power. So im hoping that helps a little

I didnt say that your cam overlap was hurting. i was explaining why it shows up like that on the graph...