those are the actual numbers and its part ignition breakup part running waaay too rich. honestly only had my car on the dyno three times and i was scared to tune it for fear of doing something wrong. i learned alot tuning on the street. its not the prettiest graph but it did it

 

Just keep in mind that dyno's can be told to lie. Instead of looking at everyone's dyno charts just hit the track and see what mph you get. To me that is more meaningfull than a dyno.

STEPHEN

 

More room for error when calculating your HP from a trap speed.

Jason

 

That graph actually looks A LOT smoother than the other one I saw. I agree with the others though - did you ever get it on another dyno or a good run down the track?

 

unfortunately NOPE.......broke the tranny same day it was rebuilt..... honestly never had good luck with the car. it is disassembled and the shell is sitting in my driveway.........eventually i'll get another one but getting out of debt is pretty cool too

best et was 12.0 @ 118 mph blowing the trans and twisting the input shaft with my decent driving but nothing amazing and only a 1.70 60 FT... i learned alot from this car

 

Absolutely, though I think the shape of the power curve is useful to know. The dyno sheet posted goes to show why peak numbers mean very little as I doubt the average hp between the shift points there is much more than 350rw -I suspect this is why it trapped 118.

 

nah...he just can't drive...

 

i never went past 7200rpm on the track....... had some weird misfire which i later fixed two days before the car was wrecked!

oh well life goes on, the car did make the power but if i ever used it who knows lol

 

Thats why there are to many variables to figuring it based on trap speed. Driver could suck (Vosko)
, bad launch, traction problem, tires etc can all effect trap speed. Those wont change HP numbers.

Jason

 

come on its an FD it spent more time in the shop than on the drag strip, i really don't see too many other people taking their cars to the strip that aren't sponsored or don't own their own shop,even then! they are obviously too scared. i do have one hero though.......boostn7 is the MAN!

 

isnt 118 a very low trap speed for the power you are claiming? I think it should be about 5mph more at least right?

why would you only get a 12. with a 1.7 6O time with 415 rwhp???

 

[IMG]C:\My Documents\rx7 dyno sheet.jpg[/IMG]

 

 

^^^

 

Looks like Scott was being very conversative with the AFRs. I'm no expert, but most of it is below 11 (which I've read is pretty rich).

 

could you post your dyno run? I'm wanting to compare a/f ratios, rpm's and all that good stuff. Thanx man!

 

what kind of wheels to you have on the car? My car showed a 20-30 rwhp decrease when going from the stock 16x8's to the massive 19x10 (285 tire) rears- with no other change in the settup of the car, if anything it shoudl've shown higher numbers because it was a little cooler outside when i dyno'd with the 19's. Having to rotate all that weight apparently took some serious power.

BTW: I made 404 rwhp at about 16psi with the 19's and A/F numbers around 12 (not exactly conservative) with a mild streetport

 

My Dyno Pull...



This was at 16 psi. Don't ask why they graphed it in MPG instead of RPMs...

 

your torque # is a bit low for your setup piano...how big is your port?

 

I see your a/f is a bit leaner. Scott did'nt build my motor so he did'nt know what was done internally......so he kept it rich, at least that's what he told me.

 

I'm told that it is a large streetport. I've never seen the ports compared to other ports, but my tech said that my ports were bigger than Superman's which primarily accounts for my higher hp at lower boost...

 

your hp is low as well...w/ that turbo at 16psi u should ideally be at over 450whp...but a conservative tune should put u at about 425-430whp...

someone tell me if i'm wrong...i don't claim to be an expert...

 

ahh shux maybe he can stick his finger in the spark plug hole and tell you all about the internals just like he did on this thread.
https://www.rx7club.com/showthread.p...mazsport+scott

Hes a ******* rotary genious

 

So far I'm happy with his work and had no problems. Thats all I got to say about that.

 

so far its ok huh? that sounds pretty dumb to me bro. Hardly any of the people that go to that shithole are on the forum. Yet if you search mazsport on here you can find a bunch of threads where he TOTALLY was ******* with people who dont know anything. You think im talking out of my *** just to be an *******? NO, i just know the feeling that I had after going there and losing my life savings. My friend also and another guy and another and another There is ample evidence that he scams people who dont know any better about rx7s. NO doubt he is a scammer and a ******* *****. Keep going there and youll get yours. I dont own a shop im just one of the guys who got torn a new one going there and im trying to help you out. please believe me the guy is crooked. Even if he doesnt choose to target you for ripping off because you know a little more than the average person and it's harder for him to do it, don't you feel bad about going to a guy that you know does that to others and is capable of doing it to you? Maybe thats why mazsport "upgraded/moved" shops who knows. Bart there is a great guy and so is ken but neither of them can control what goes on....

maztech on the other hand WOW. It doesnt get any better than a guy like Jeff Gladish. I also think highly of pettit engines if you ever are looking for solid work