Red MKIII Supra on Gratiot last night???

[speedfreak426]

posted in the vids section already

http://videos.streetfire.net/video/M...pra_649392.htm

thats it right?

[BigJohns]

Originally Posted by Dropspeed

I don't know where all the cool kids hang anymore?





A 12 second street car is fast........this has just been an ongoing "jab in the side" with Supra owners in SE Michigan area going back years. There has yet to be a Supra that is from Michigan that has been reported to run 11s or better even with all the HP in the world.

I love the car and respect the power.....but if you can't use it don't tell me about "how fast it should be" ........Prove it!

-Matt

I can agree with that. But DR's or slicks can change those outcomes under the right conditions.

[BigJohns]

Originally Posted by speedfreak426

posted in the vids section already

http://videos.streetfire.net/video/M...pra_649392.htm

thats it right?

Yes, that was the one.
I'm telling you, that dyno was NOT set up correctly. That car has a lot more power than 400 RWHP, trust me. I know what a 400 WHP can do, this car has a lot more than that, I promise.

[enslaved87]

Originally Posted by BigJohns

Yes, that was the one.
I'm telling you, that dyno was NOT set up correctly. That car has a lot more power than 400 RWHP, trust me. I know what a 400 WHP can do, this car has a lot more than that, I promise.

meh...we'll see. More dyno time and some track days will follow in the next couple months. But you're right on the dyno. They had it scaled as a 4 cylinder. wee! My fuel calculations show me around 500-600rwhp.

[silver z]

^^^ yeah that dyno day was cool but those guys were retarded and really diddnt seem like they knew what the hell they were doing.

[92turbo4life]

good stuff. glad to see your car is doing well


ill be out. my buddy just finished up my car. all we need to do is tune it within the next couple days. i plan to head out if the weather is nice. ill see if he wants to tag a long.

he also has a 1jz swapped car with a GT40.

there is also a few other guys in the westland area that want to come out..
we will see how the weather is. should of tuned tonight since the rain is coming but hopefully ill catch a break.

[x99percent]

Originally Posted by enslaved87

My fuel calculations show me around 500-600rwhp.

What are your fuel calculations?

What injector size, duty cycle, static fuel pressure, etc. ...?



400 on most DynoJets is "meh"... I just tuned a MKIV on pump gas to 525whp on S.I.'s heartbreaker.

[BigJohns]

Originally Posted by x99percent

What are your fuel calculations?

What injector size, duty cycle, static fuel pressure, etc. ...?



400 on most DynoJets is "meh"... I just tuned a MKIV on pump gas to 525whp on S.I.'s heartbreaker.

I think that shop has a mustang dyno.
Still, his car is NOT making only 400 whp, I can assure you of that.

[x99percent]

Originally Posted by BigJohns

I think that shop has a mustang dyno.

They have a "Dynocomp" dyno. Just by listening to the run, you can tell that the dyno likely doesn't have the eddy brake option to properly apply load to the car.

Originally Posted by BigJohns

Still, his car is NOT making only 400 whp, I can assure you of that.

I'll wait until I see trap speeds or, at the very least, some basic injector math.

[Terrh]

both of those can lie though

it took me a while to have the balls to stay in it for a whole pass and trap 132 in my rx-7, most of my traps with a similar horsepower level were below 120 (110-118 most of the time)... car would break loose in every gear and I'd have to get out of it, then wait for the turbo to re-spool, etc

also, injector math can give you a ballpark but it's a pretty huge one. depends on AFR's, timing, you name it - same amount of fuel can produce 100 more horsepower if the tune is bad

[x99percent]

After looking at videos of other cars on that dyno, it *DEFINITELY* does not apply load to the car. Every car on that dyno day put down some ridiculous numbers. It's so obvious that it's skewed.

[BigJohns]

Originally Posted by x99percent

They have a "Dynocomp" dyno. Just by listening to the run, you can tell that the dyno likely doesn't have the eddy brake option to properly apply load to the car.



I'll wait until I see trap speeds or, at the very least, some basic injector math.

Are you saying that it isn't giving enough load, or too much?

[BigJohns]

Originally Posted by x99percent

After looking at videos of other cars on that dyno, it *DEFINITELY* does not apply load to the car. Every car on that dyno day put down some ridiculous numbers. It's so obvious that it's skewed.

Skewed in which way?

If you would have seen this car on gratiot, you would be thinkning that it had a lot more than 400 to the wheels.

[x99percent]

Originally Posted by BigJohns

Are you saying that it isn't giving enough load, or too much?

enough? Try almost none.

The car is spinning a relatively small-diameter roller. That's it. A proper load would be pushing back on the car in the same/similar manner that the street "pushes back" on the car.

Compare and contrast:
http://videos.streetfire.net/video/F...the_640798.htm <-- No load
http://www.youtube.com/watch?v=QWcvmfQxbms <-- Proper loading applied

Yes, I realize that one is AWD and the other is (has been converted to?) RWD, but just LISTEN.

Originally Posted by BigJohns

Skewed in which way?

Reading obnoxiously high.

Originally Posted by BigJohns

If you would have seen this car on gratiot, you would be thinkning that it had a lot more than 400 to the wheels.

In your estimation, how quick does a 400whp MKIII Supra run the 1/4?

[enslaved87]

Originally Posted by x99percent

What are your fuel calculations?

What injector size, duty cycle, static fuel pressure, etc. ...?



400 on most DynoJets is "meh"... I just tuned a MKIV on pump gas to 525whp on S.I.'s heartbreaker.

680cc injectors. 86% duty cycle @ 6500rpm which of course is pushing it because I'm revving it to 7800rpm. stock fuel pressure regulator = 42psi at idle - vac off. I've made 500rwhp several times on 550cc injectors when I tuned for Turbo Concepts, mind you that was pushing them just a "tad" bit - but regardless. With that being said, I can assure you that the dyno was not reading "obnoxiously high". (Aside from the fact that the guys running the dyno were clueless.) There were built big blocks there that could not even touch 400hp that should have made 500rwhp without thinking.

[x99percent]

Originally Posted by enslaved87

I've made 500rwhp several times on 550cc injectors when I tuned for Turbo Concepts, mind you that was pushing them just a "tad" bit - but regardless.

A "tad"?

Originally Posted by enslaved87

With that being said, I can assure you that the dyno was not reading "obnoxiously high". (Aside from the fact that the guys running the dyno were clueless.) There were built big blocks there that could not even touch 400hp that should have made 500rwhp without thinking.

There are plenty of videos posted from that dyno day, with good examples of near-stock cars farting out high numbers.

[silver z]

^^^^ what near stock cars??

[BigJohns]

Originally Posted by x99percent

A "tad"?



There are plenty of videos posted from that dyno day, with good examples of near-stock cars farting out high numbers.

I've been looking for these video's of "near-stock" cars, but cannot find any? Do you mind posting examples?

[BigJohns]

Originally Posted by x99percent

In your estimation, how quick does a 400whp MKIII Supra run the 1/4?

On street tires I've seen them run mid 12's at about 118 ish. These cars aren't so good out of the hole.

Anyways, I've seen a lot stock CT26 7M's make 400 whp... I'm telling you, I know the difference. This guys car is not making anything LESS than 500 at the wheels, at worst case scenario. I'm still guessing 600 ish.

[BigJohns]

BTW- It isn't that unheard of for 1JZ'd supra's to make around 400 whp on the stock twins either.