I went out to mainstream performance with my brother to dyno his car which on a side note put down 270rwhp untuned...he is planning to get it tuned Monday. My max put down 236whp and 239lbs of torque on a third gear pull and 240whp and 242lbs of torque on a fourth gear pull. I thought 3rd was close to a 1:1 ratio and was teh right gear to do your pulls...but idk. There was some sort of spike in the torque numbers for the forth gear pull so they just erased it. The spike said I had 290lbs of tq...Man I wish . Ill scan them later but it was easier just to take some pics of them.

 

And now that I look at them they look horrible...lol.

 

6spd or auto???... plus there is a dyno section which is perfect for this post

 

6 spd..And yea I seen the dyno section...but ive also seen plenty of dyno post in this section also.

 

Better pics...

 

Would have been nice if you listed more info like your mods....your brother mods or atleast the kind of car he has. Relevant information

 

Nice #s your #s seem a little shy for your mods, but its the first I've seen with stillen headers so I'm not totaly sure. 4th gear is deafinatly where you should be runnin on the dyno with the 6 speed. You should get the run files and swich the second to rpms not speed to get a better anaylisys. Not bad tho the first one has a real nice curve, that things makin some good power not bad at all.

 

Sorry but I was rushing...but he has a 92 miata with a gt28 and the mazda gtx pistons on 18psi. And my mods are injen intake, stillen headers, cattmann b-pipe, stillen rear section. oh yea and the timing advanced two degrees.

 

Seems about right for your mods, most people don't make 250whp on I/H/E, and those that do normally have a 3" or cutout.

 

he prob would have made more power with hs, cattman or obx headers and lost the injen to a WAI, i thought the $tillen headers lost power.. to the OP, you have pics of the $tillen headers prior to install?

 

i guess stillen headers do make power afterall

 

Your cars for sale right? You should post up the dyno pics under that thread, might help sell sooner.
Just my $.2
Nice car btw

 

^^^ hmm good idea.................. a guy just claimed he did 240whp 251tq in his auto 03 I/H/E

 

Thought about it...but I may end up keeping it bc the car I was looking at getting is heavier, even though it is RWD...And Ive been paying alot of attention to the max now..and there are a bunch of things I could do to get more out of it...


No I dont have any before pics...I bought the car with the current mod list. What is WAI?

 

warm air intake, the consensus is the injen is too close to the radiator, drawing in more heat..

 

suppose he does the battery relocation mod and put the intake by the fender - makin it a true cai... will require cutting though

 

Yea a short ram will do... Jaypee99 is running his short ram from his old civic and he's dynoing in the 270 range

 

it is possible to get 250 at the wheels with I/H/E. I did

 

You know whats funny, a friend was telling me he didnt like the fact that it sat to close up to the radiator...I may just look into doing the battery relocation and CAI.

 

So the spacers and NWP only added 3whp? If thats the case they could keep em...

 

What are the SAE Corrected numbers? Those make for better Internet comparison.

 

You're missing the point. The NWP spacers are meant primarily to reduce power loss through heat soak, not to provide raw gains from a change in airflow. Any gains in the power band are secondary effects and results from the slight alteration of the intake manifold runner flow characteristics when these are installed.

 

very well said

 

+2

 

I bet you equal length headers would have yielded even more..

 

Who is missing the point? I totally understand how and why the spacer are used...i thought the winking eye meant something but it obviously didnt...but I didnt understand how he made 250whp on I/H/E but in his sig it said he made 253.50whp and his mods list included a udp and the spacers which ARE going to be my next mods....wasnt anyone bashing the spacers to where they needed defending.... lol Mines should be here at the end of the week. And I guess all bolt on mods pretty much do that same thing....allows the engine to make the power it was designed to by reducing restrictions...ie...bigger piping and such.

 

Thats why I used to just read info on this forum...and avoid posting at all cost..lol..been trying to post more..but its kinda impersonal like a txt message so much is lost in the context of what one is saying if they're not careful on here. So much is communicated and understood thru body language, and u have a better understanding...miss perception is a ****** on here...

 

here are the gains with the NWP spacers on my car. Much more than 3 wheel horsepower. check out the midrange.

 

that jump in tq is outstanding,.... was that the only mod done at the time in terms of comparison, since the other dyno? ..also did you have a SSIM ? and or block off plate? thanks...

 

im not saying it wont, but until someone with exact same mods step up to the plate and prove it, then it isnt fact

 

The only mod between the first dyno was the spacers and fast cat, and new tranny. headers, intake and exhaust were the same

 

Geesh...I know it gave u more than 3 hp...I did my install yesterday...feels pretty solid.

 

I like all that in between midrange gain... maybe the 3 whp gain is telling you to tune or check you're installation for problems!

 

it's already tuned with an afr of 12.2, obviously there is a bottleneck at 6k which is pretty typical of most of the 6spd dyno's I have seen. I'll be trying a few things this summer depending on the money situation

 

You're @ 12.2 AFR which is considered the best mean torque (12.0-12.5)! If you lean out a little, you'll make more power @ 12.8 AFR(Best lean torque)...I'll be trying to lean out between 12.5-12.8 AFR, these guys running 13.0 + leaner AFR are IMO doing damage to their motors that will be obvious only with time. First failure will be either a blow (burnt through) head gasket or broken/burnt valves!

 

We tuned at 12.2 because of heat. The richer mixture helps to cool down the internals a tiny bit. With our engines prone to pinging we decided it was the safer route. I didn't want to lean out and start pinging again.