RAD951

I was wondering with all of the mods I have done to my car, how much hp should I be making. Heres the list: Autothority Stage 2 chips, cone filter intake,free flow exhaust without cat and wastegate to the atmoshphere, running 18 psi, powerhaus race head fully port and polished with orings an widefire, Nology Hotwires. I estimated around 285 hp at the crank. Am I close to 285 at the crank??

Danno

You might actually be making more than that! Check out the dyno charts at <a href="http://www.novustelecom.net/~fkassam/dyno/dyno.html" target="_blank">Farzaan's Dyno Day</a> and find a car similar to yours. Divide rear-wheel HP by 0.85 to account for 15% drivetrain loss and you have BHP at the crank.

toddk911

The dyno site is cool.

but an 89 turbo with only APE is 350hp?

Also, 87 with only APE making 300hp? I thought APE only added 40hp? 220 stock + 40= 260? Am I missing something?

toddk911

Disregard!!! The numbers are a little blury. I thougt it was at 30 line but ws at 200 line. I take it those are RWHP on that site?

toddk911

Wat does disconecting O2 sensor and drilling cycling valve do? <img src="graemlins/beerchug.gif" border="0" alt="[cheers]" />

jason952

full rich mixture and 15 psi (or atmospheric) boost pressure

RAD951

I looked at the site. I couldn't see who I could match up too. I don't know if they have more mods or something different. Has anyone dynoed their car with similar mods I have or a guesstimate? I'd take it to get it dynoed but I do not know a place in nashville,tn. Any guesses on Hp??

Konstantin

look here for a comparison
<a href="http://www-public.tu-bs.de:8080/~y0003315/951Dyno.html" target="_blank">http://www-public.tu-bs.de:8080/~y0003315/951Dyno.html</a>

Konstantin

toddk911

Think I have figured out the difference been MAF upgrade vs. turbo upgrade looking at the dyno site.

The MAF's just allow better control and/or more air/fuel to allow better response to boost and/or the ability to run more boost?

Turbo actually makes more hp on it's own but would then req. more air/fuel as well????

Please edubacate me

Danno

Yea, I suspect the gains are in this order (the most first): turbo, K&N, MAF.

There have been several cases of high-HP cars using the stock AFM. I suspect the next improvement up is the free-flow intake available with the K&N filter. Taking out that long snaking intake tract probably helps quite a bit. Finally, you gotta have a turbo that can provide the flow. With the stock turbo running out of steam under stock boost, just about anything would be an improvement.

Robby

RAD-
Are you running 15psi or 18psi? Your post says 18, but your sigs say 15... At 15psi, I would guestimate ~255RWHP. At 18psi, I would think you would be in the ~275RWHP league.

****Wat does disconecting O2 sensor and drilling cycling valve do?****

Not sure about removing the O2 sensor, but drilling the cycling valve?- many people drill the hex fitting that connects to the wastegate- I believe that's correct(?)- to keep boost from bleeding and maintain higher boost. It sort of takes the place of shims and/or banjo bolts. Could drilling the cycling valve do a similar thing, or is it possible that someone meant to drill the other (wastegate) instead? I really don't know (can you tell?)- just taking a stab- ANYONE???

BTW- RAD- I sent you an e-mail- you're pretty damn close- if you ever get towards my end of the state, or I'm out that way, I'd love to see your car. Unfortunately, Knox Vegas just doesn't have much of a 951 scene....

RAD951

Hey robby, actually I just came from knoxville, I went to University of tennesse. I am home from college now. Do you work at German Auto? Because I have only seen one yellow 951, and the owner works at german auto. I got my freeflow exhaust done there plus alot of advice.
About the psi. I run 15 psi most of the time, but sometimes I run 18 for the kicks. I just wanted to know how much I would be running around in hp. Also, if I get a new wastegate and a MAF, do you think my hp will increase?