JRSC Race Upgrade Dyno

[Lucid Moments]

Here are the #'s I got earlier today. This was done on a Dynojet. My mods are as follows,

AEM Cold Air Intake
Jackson Racing Supercharger
4.0 inch pulley
RC 440cc injectors
DC Sports Shorty Header
Random Technology High-Flow Cat
Borla Cat Back
K-Pro

There is some other stuff, but that is all that should affect power. This is untuned, running the base maps for this setup from Hondata.

Final #'s were 194.07 HP and 167.2 Tq. The torque # should actually be a little lower because there is a funny peak at about 6600 RPM's or so, but it is probably an honest 162/163. I don't have access to a digital cameral or scanner right now, but I should be able to get something up later today.

[02SilverSiHB]

Sweet...so the power curve isn't all crazy looking like my old dyno was? i.e. no hesitation, I'm sure there isn't since it was fixed by hondata.

Here's how mine was...this is a comparison of the jrsc and turbo. Your torque is much better than mine was, I had the stock cat though.

[Lucid Moments]

Sweet...so the power curve isn't all crazy looking like my old dyno was? i.e. no hesitation, I'm sure there isn't since it was fixed by hondata.

Here's how mine was...this is a comparison of the jrsc and turbo. Your torque is much better than mine was, I had the stock cat though.


Nope, no hesitation. There is one funny little torque peak around 6600, but other than that its as smooth as I could want it. Probably 95% of peak torque available from 2500 RPM's.

I'm hoping that tuning will get me over 200 WHP, I'm scheduled for a tuning session next weekend so we'll see.

[02SilverSiHB]

I can't get on ephatch right now, but what was your a/f?

[Lucid Moments]

This was a quickie dyno day event, so they didn't put a wideband sensor in the bung I already have put in for that purpose, just a tailpipe sniffer, but that showed about 13/1 almost all the way across.

[Lucid Moments]

Finally got a copy of the dyno sheet so here it is

[02SilverSiHB]

dude, that's good power, don't even let those haters get on to you...you're getting what looks like 200 from 2700rpm and up. I don't understand why the dyno says 197 when I see it well above 200...looks more like 225whp imo

edit..nevermind I looked at the backwards on the torque and power

[02SilverSiHB]

also, check your belt...what belt are you using with the pulley? it appears you may have a belt slipping...that blip looks like a slip in the belt at around 6500rpms

[Lucid Moments]

also, check your belt...what belt are you using with the pulley? it appears you may have a belt slipping...that blip looks like a slip in the belt at around 6500rpms

At the moment I am using the belt that came with the 4.4" pulley with the tensioner cranked all the way down. I have a new, shorter, belt, but I haven't had the time to put it on yet. I don't think it is slippage though cause the belt is pretty damn tight. I can twist it maybe 45 degrees.

Thanks for the good words though.

[02SilverSiHB]

At the moment I am using the belt that came with the 4.4" pulley with the tensioner cranked all the way down. I have a new, shorter, belt, but I haven't had the time to put it on yet. I don't think it is slippage though cause the belt is pretty damn tight. I can twist it maybe 45 degrees.

Thanks for the good words though.

eventually that belt will expand too much and will slip...I had that issue, the new one you have will help a lot in the upper rpms

[Lucid Moments]

Just got back from having my baby tuned, and what a difference. The place I went to for tuning uses a dynapack. They gave me baseline and final #'s. The baseline on their machine was 194.1 whp and 144.8 wtq. The final #'s were 217.6 whp and 174.9 wtq.

This was after over 6 fucking hours at the shop, and they charged me for 5 hours of tuning, and they wouldn't let me back to the dyno, so I had to just sit on my ass in their shop. At least they had a television. I was so ready to leave when it was done I didn't think to ask about a/f ratios, or to get them to e-mail me the final datalog, but I'm going to see what I can find out.

[CorSport]

Great numbers (especially with a shorty header)... would love to see the dyno(s). So are you running larger injectors and a smaller pulley?

Tai

[Lucid Moments]

Great numbers (especially with a shorty header)... would love to see the dyno(s). So are you running larger injectors and a smaller pulley?

Tai

Yes, this is with the RC 440cc injectors and the 4.0 inch pulley.

I'll get the dyno's up soon, hopefully late today.

[02SilverSiHB]

holy crap...awsome gain from tuning, especially the torque!