not real bad numbers for the car. the first one is a third gear pull and 2nd one is a 4th gear pull.

 

i like the 4th gear pull much better

 

thats a good A/F ratio if it never drops below 13? Are you stock or have you modded the car?

 

besides the suspension mods it has a k&n intake, sr high flow cat and midpipe and a tanabe catback. the first 4th gear pull did 171hp, the one on the chart is after heat soak, hopefully my turbo kit will be here soon and i can see the improvements.

 

hows your gas mileage?

 

well when i go on road trips mainly all interstate i get 240 miles to a full tank around town i would say about 190. its crappy if you ask me espcially with 93 being $2.45 a gallon

 

That's about as lean as Warren's car (Renwar1) - he made 206whp...on a different dyno.

 

Are you sure these A/F numbers are correct? I just can't see how you get worse mileage than my stock rx8 with that lean of a run

anyone else want to chime in on this?

 

The 4th gear is the most accurate correct since it is closer to a 1:1 ratio?

 

No... 5th is the 1:1, and the best gear to dyno in.

 

wow, are you sure 5th gear is the 1-1 gear, that seems a lil high and a lot of load. and yeah the o2's are correct, of course most of my driving around town is in 2nd gear and in the powerband. what mods did the guy who put down 206hp have?was he force induced?

 

Yes, I'm very sure.


The guy who put down a 206whp run was 100% stock. 2004 RX8, GT, 15K miles.

 

damn i wish i would have got his car, he only has about a 14% loss in drivetrain compared to the 238 base rating from mazda.

 

...All of our Manual Transmission cars have the same drivetrain loss - the issue is, our engines are in different states of tune. Frankly, 200whp based on 238 flywheel HP is acceptable; If I could get a solid 200whp I'd feel like I got all of the 238 horses I paid for.

 

The AFR's are wrong because the probe is after the cat.

Vince

 

yeah the probe was after the cat but that doesnt mean they are wrong.

 

have there been any dyno pulls in 5th on here.

 

Yes - Its probably 'best' to dyno in 5th...I have, and will continue.

 

what was your speed in 5th on the dyno?

 

150...wanna see?

http://www.d-mphotos.com/images/rx8/...thgeardyno.wmv

Here's the 6th gear run:

http://www.d-mphotos.com/images/rx8/.../rx8184mph.wmv

 

i thought all rx8 were electronically limited to 148mph, how did you manage to do away with that

 

It appears they are not. Everyone who dyno'd at my event w/ an RX8 hit 150mph in 5th.

Btw - how many miles on your car?

Today the service guy told me he spoke to a mazda rep about the difference in HP - he suggested it'll take 10K miles or so, before the engine seals 'seat' or something...and that's the cause...until then, the car isn't running at full compression.

who knows?

 

ive got 19k, im pretty sure its broke in

 

i think the only gear that is governed is 6th..i've hit 150 in 5th at the track...switching to 6th just droped it to 148. LOL:D


^^hehe got you beat i'm abotu to hit 33k...so i'm pretty sure mine is broken in:D

 

They will not be accurate with a sniffer in the tail pipe. You need to weld in a bung ahead of the CAT to get the best readings.