Great numbers, but to beat Stu for the record you'll need to back it up on a Dynojet.

 

No need for that - the Dynapack was perfectly calibrated ... call BisiMoto and he will send you the calibration files and will explain why it wouldn't make any difference. Just look up "Bisi Ezerioha" and you will know who he is - he seriously knows what he's doing
(Basics: http://www.sportcompactcarweb.com/editors/technobabble/0110scc_technobabble/index.html)

 

badass! Congrats.

i understand if you don't say. but what all is done to the car? Cams?Headwork?Bottom end work? etc?

 

Thank you!

Short and simple:
EVERYTHING you can do to that engine without going stroker

For this run we had a head with NO PORT-WORK ... just custom cams and custom shims with BC valves/springs.

 

I was the first to hear, and I do indeed congradulate Mat for all of his efforts. It is difficult to quantify what all is needed to get to these #'s. Granted, his engine is built to withstand 1000hp, but this isnt important as the limiting factor are the turbo's. It just shows that with the right ingredients, a hefty budget, it can be done. A big congrate anyways.

Chip........I don' know what the difference would really be if using a Dynojet vrs this?

 

Thank you Stu, your appreciation means a lot to me - you TRULY understand what efforts it takes to reach those numbers.

Now you need to change your user-title ... but u can take Dynojet Stock Twins King and I'll take Dynapack STK? hahahah

Hope to see u @ TX / SILV

 

Ganesh called me that night to tell me. Simply awesome, man.

Saw the car in person at the shop a couple of weeks ago while under the knife while I was in town.

Wakita-san, FTW.

Christian

Edit: Forgot to throw a big congrats in there,lol. Great numbers on the old hairdryers.

 

Congrats!

And here I am going single... LOL

 

Congrats Mat! i know this is a little off topic but were you able to get any new numbers in the 1/4? or do you plan to?

 

Hey - nope - no DragRacer here

The car will be single next week .. so I won't have a chance...

It's always an RSP rocking the fastest twin's cars.

SnapPerformance
SupraDriver

Rock on!! Good job dude.

It's not RSP but thank you

 

It's always an RSP rocking the fastest twin's cars.

SnapPerformance
SupraDriver

Rock on!! Good job dude.

 

Nice job!

Steve

 

Good job on breaking 500whp!! I for one know how hard that is to do. You mention custom shims....why was that needed? Just curious, did you dyno before you put the cams in? I made 472/515 before I added GSC cams and fixed a few bottnecks in the exhaust. I'm planning on dynoing in a few weeks but doubt it will break 500whp.

Anyway, great job!!

 

Well - Mr. Wakita checked the whole engine before he even touched the VPRO and said that we're losing efficiency because of the shims not being perfect... so he hand-made shims and installed them ... I'm VERY sure that contributed a lot...

 

Fuck Now

 

:lol: ^ ^ Nice numbers, but your rims = :gtfo: :lol:

 

Congrats on the numbers :bigthumb:

From your sig, looks like this was done on a built motor, What is the compression ratio of the build?

 

The Engine was built with CP pistons .50 oversize with stock compression ratio. I think if I would had coated the pistons, I could had squeezed alittle more out of the engine with stock twins. Otherwise im happy with the results.

 

As someone whos dynoed on a lot of different dynos, a lot of times. You really need to back it up on two different types of dynos on different days. It's just like the drag guys. They always do another pass to back up a run in case of timing errors etc. If you want to claim to be the highest of something, you should really back it up just to be sure. My $.02. I ended up having to back up my eclipse dyno #s on a dynapack because I couldnt stop spinning tires on a dyno jet. with the spinning tires was 645whp on a djet and 687 on a dynapack. But traditionally the dynapack read slightly lower for me. However theres a sensor on the dynapack meant to calculate ambient temps and pressure for the applied correction. Depending on the location of that sensor it can throw readings too, I heard about one dyno day where they had it close to the car and they moved it further away from the heat source when someone noticed it and changed their numbers more than 10%. Dyno's are strange and finickey. The exact same setup on the same car can vary 20hp on the same dyno the same day depending on the time between pulls, etc.

 

Maybe...just maybe...someday people will use dynos as tuning tools and the track (drag strip, streets of willow, dry lakebed , or otherwise) to measure the car's performance.

 

That has to be the craziest statement I have ever seen posted. You mean like, actually, RACE them? :run:

 

Mat: Call Ryan and get it dynoed somewhere here in OC so a bunch of people can see it happen.

Drew: I want to see your DSM, give me a call next time your in the desert with it.

 

verry verry nice,

 

Damn, I'm late on this thread. Congrats Mat, I was waiting anxiously for that text message. Can't wait to start some NA dyno drama in a few months lol. People make me laugh. You get nothing but positivity from me. Great work. The supra community should be proud that people are still taking the time and money to maintain the status of our cars as continued contenders in the industry.

 

For anyone wanting to know my highest stock twin at a Dynojet, this is it here. I could NOT get to over 500 whp SAE. Only 493. This is Uncorrected. Although my Tq SAE was 537 or something, pretty comparable to Mat's. This was with electric fans, and in Seq. Mild ported head and 264 cams, and LW Flywheel. VPC and fuel tuned to 11.5 +/-. Oh....and my #1 turbo mod....hence why the low end is so good at about 340 Tq.

 

what 1st turbo mod?

 

Top two excuses:

#1 Risk damaging your car??? OMG

#2 what if it gets dirty??!

 

LMAO...

 

It's too bad your car wasn't ready to line up against Stu's on the dyno at SILV'08. Stu's car has been dynoed at many places with results fairly close to each other. Still, congrats on hitting the 500 hp mark. Also, it seems like in another thread that your car is an auto, right? The #'s at the drag strip seem to be a better measure for autos e.g. my car dyno's at around 520-530 rwhp but based on trapspeed and weight it's more like in the 585 rwhp range.

 

^ he did a 6 spd swap

 

Gotcha.

 

The way I see it, the 500+ WHP number is there, and to discredit someone's power numbers just sucks... Dynapacks are great; there is a mobile Dynapack that I know of locally, and this dyno goes wherever you decide to go.. ie: inside a stuffy and small shop, or right outside a nice green fiend at the race track, or inside a nice ventilated dyno cell, etc... This same exact dyno can spit out totally different numbers on the same car, because obviously, it is at a different location and a different day as well.

I had a choice to choose between a Dynapack and a Dynojet when I purchased my dyno... Dynojet was cheaper too, but Dynapack wins hands down just because you can actually tune for minor changes and it spits out very consistent numbers pull after pull. On a Dynojet (by the way, I used to tune on a Dynojet before Dynapack became popular and accessible like all tuners), it's extremely difficult in getting changes +/- 5 WHP on a 400+ WHP car... The fact that Dynojet is always throwing big variations up and down simply sucks IMO... Although it takes into account for wheels/tires, the biggest downfall is the huge roller. I used to be good buddies with a Dynojet operator, and his dyno was purchased with a lot of "mileage" on it... Worn bearings, looser rollers, etc.. this kind of variations is something the Dynojet can never calculate, and his dyno would spit out numbers 10-15% higher than a neighboring Dynojet every single time with no exceptions.

The Dynapack's key benefit is to eliminate the rollers because calculating the mass of a wheel/tire has lesser margin of error than to taking a huge spinning roller into account. Both dynos have to "calculate" power off torque, but it's smarter to calculate something that is less significant (ie: wheel/tire) rather than a100+ lb rollers with a large rotational mass that is susceptible to wear and tear too.

Now which dyno reads higher? My findings are; at 100-400 WHP, a Dynapack reads lower. I made a video on Youtube by the way with same day testing with my Integra (search for Dynojet vs Dynapack). At 500-up WHP levels, both dynos are relatively close because wheelspin becomes an issue on a Dynojet so it offsets the common load-brake dynos generating lower numbers. If you run slicks or DR on a Dynojet, that may even things up, but then I haven't tried dynoing with slicks or radials with my Supra yet. Such findings like the above, I can't even tell which dyno would read higher or lower. Best thing is to strap the damn engine onto an engine dyno if you want HP...lol Taking the car to the track doesn't even tell peak HP either because a car with lower HP with a fatter powerband can do just as well in terms of MPH.

 

Congrats on the numbers, Mat. That's a LOT of work and significant expense to get the stock twins to perform at that level.

Ken.

 

Very nice, congrats!

 

Thanks a bunch guys

However - the stock twins are off... we worked from WED to SAT night to get the 74mm on ... everything is done and running ... tuning will be Wednesday

let's see how that goes... BUT: the record-twins won't die - the will go onto the 2nd Supra going to Austria