Supra Forums banner
1 - 20 of 62 Posts

·
Banned
Joined
·
1,455 Posts
Discussion Starter · #1 · (Edited)
Friday around 11:00PM we set a new mark with 504.3 RWHP through stock twins.
The engine is heavily modified but the twins are the ORIGINAL 13! year old ones - 100% unmodified - no changed/ported housing, no different wheels.

We hit the 504 at around 21PSI on 100Oct! Dyno was a Dynapack - freshly calibrated. The gear ratio is because we were using a AT diff with a 6speed (my TRD 6speed diff is delayed...)

Below are the graphs for proof :)









With 15% drivetrain-loss that is an incredible 593.3 HP - an increase of 273 HP / 85% over factory rating!

We would've been able to squeeze out another 10HP most likely but at 11PM everyone wanted to go home... our goal was to hit the magic 5xx :)

BIG thanks goes out to:

Kaizen Motorsports / Jose / Ray - engine & some custom stuff
Blast Racing/HKS / Mr. Wakita - VPro-tuning & some custom stuff
BisiMoto - Dyno
 

·
Old School
Joined
·
4,125 Posts
Great numbers, but to beat Stu for the record you'll need to back it up on a Dynojet.
 

·
Banned
Joined
·
1,455 Posts
Discussion Starter · #3 · (Edited)

·
2JZ S13
Joined
·
2,220 Posts
badass! Congrats.

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

·
Banned
Joined
·
1,455 Posts
Discussion Starter · #5 ·
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.
 

·
Stock Twins King
Joined
·
4,582 Posts
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?
 

·
Banned
Joined
·
1,455 Posts
Discussion Starter · #7 ·
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 :)
 

·
Old School
Joined
·
4,125 Posts
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?

Stu, and Mat,

Wheels off the hub for the Dynapack versus wheels installed on the hub for the Dynojet.

The inertial loss incurred due to the weight of the rim/tire and distance of that weight from the center of the hub is included in the Dynojet measurement, but not the Dynopack. Same reason a LW flywheel shows a power increase o a Dynojet, even though BHP at the flywheel didn't change.

I'm open to hearing why not having the rims/tires on the car doesn't matter. I'm no expert physicist, so have at me.
 

·
Banned
Joined
·
1,455 Posts
Discussion Starter · #9 ·
Stu, and Mat,

Wheels off the hub for the Dynapack versus wheels installed on the hub for the Dynojet.

The inertial loss incurred due to the weight of the rim/tire and distance of that weight from the center of the hub is included in the Dynojet measurement, but not the Dynopack. Same reason a LW flywheel shows a power increase o a Dynojet, even though BHP at the flywheel didn't change.

I'm open to hearing why not having the rims/tires on the car doesn't matter. I'm no expert physicist, so have at me.
Hi, the Dynapack takes the wheels/etc into account. The wheels were measured/weighted before the run - the Dynapack knows all that stuff ;)
Just call Bisi - he's a VERY helpful guy and will surely explain the Dynapack to you.
 

·
Old School
Joined
·
4,125 Posts
Hi, the Dynapack takes the wheels/etc into account. The wheels were measured/weighted before the run - the Dynapack knows all that stuff ;)
Just call Bisi - he's a VERY helpful guy and will surely explain the Dynapack to you.
Cool. I defer to the (former?) record holder Mr. Hagen, if he's satisfied then I am too.

(I'd still like to see what you make on a Dynojet, though.)
 

·
Registered
Joined
·
693 Posts
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.
 

·
ex BPU'er
Joined
·
5,095 Posts
Congrats!

And here I am going single... LOL
 

·
Registered
Joined
·
1,187 Posts
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?
 

·
Banned
Joined
·
1,455 Posts
Discussion Starter · #15 ·
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 :)
 

·
Stock Twin 6 spd King
Joined
·
1,731 Posts
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!!
 

·
Registered
Joined
·
1,187 Posts
Hey - nope - no DragRacer here ;)

The car will be single next week .. so I won't have a chance...
oh damn i feel stupid. i think i was confusing you with TurboMatt. lol sorry. :confused: but congrats anyways
 

·
Banned
Joined
·
1,455 Posts
Discussion Starter · #19 ·
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...
 

·
Vendor
Joined
·
4,400 Posts
Hi, the Dynapack takes the wheels/etc into account. The wheels were measured/weighted before the run - the Dynapack knows all that stuff ;)
Just call Bisi - he's a VERY helpful guy and will surely explain the Dynapack to you.
Maybe it's because I've had a long day and can't think right now - but there's simple math involved when you make a power number. Torque is a twisting force. A dyno measures a twisting force by knowing it's own weight and dimensions and measuring how quickly it is accelerated.

Then it's a very simple equation to derive horsepower from torque.

If you pull 80-100lbs of rolling stock out of the equation, the twisting force changes (measured force goes up).

In my humble opinion, WHENEVER factors are inputted into a dyno (Dynapack, Mustang Dyno) - the 'number' it spits out doesn't matter. Correction factors...15% lower or higher than a dynojet, whatever - doesn't matter. A dyno should be able to do one thing, measure how much force accelerated its (drum) and spit out that number.

Any time that the user can define items in the calculation, you're just fighting a losing battle.

Not that your car doesn't 'make this power' but I just wanted to explain why dynos are not the alpha and omega of power measurement.
 
1 - 20 of 62 Posts
Top