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Old 09-17-2007, 05:22 PM   #26
Junior2JZ
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Default Kick ass man...

Nice job guys..
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Old 09-17-2007, 05:26 PM   #27
aps2fast4u
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WRX heads are ported I assume? Awesome #'s BTW!!
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Old 09-17-2007, 05:29 PM   #28
XS_WRX
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Quote:
Originally Posted by Homemade WRX View Post
so what do you mean by the cam gears were "aggressively tuned"?
for aggressive top end or spool up?
-Micah
for aggressive top end spool.... that thing sees full boost at 6K+ i hope they werent "tuned" for spoolup.
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Old 09-17-2007, 05:37 PM   #29
dan avoN7
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wow that's awesome guys. what type of oiling system does the motor have to rev that high and what type of oil pressure are you seeing?
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Old 09-17-2007, 09:23 PM   #30
hybooststi
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Nice job guys def waiting for a video of that monster!

k.c.
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Old 09-17-2007, 10:33 PM   #31
burnin4
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Darryl, more info on the 42r kit please! will you accept "barely used" UR 35R kits on trade ?
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Old 09-18-2007, 09:12 AM   #32
Ultimate Racing
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Quote:
Originally Posted by dan avoN7 View Post
wow that's awesome guys. what type of oiling system does the motor have to rev that high and what type of oil pressure are you seeing?
We are using a JUN oil pump.

Darryl
www.ultimate-racing.com
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Old 09-18-2007, 09:13 AM   #33
Ultimate Racing
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Quote:
Originally Posted by Homemade WRX View Post
so what do you mean by the cam gears were "aggressively tuned"?
for aggressive top end or spool up?
-Micah
Dialed in for a stronger top end (low end took big a hit).

Darryl
www.ultimate-racing.com
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Old 09-18-2007, 09:16 AM   #34
Ultimate Racing
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Quote:
Originally Posted by burnin4 View Post
Darryl, more info on the 42r kit please! will you accept "barely used" UR 35R kits on trade ?
Hey Austin,

The production kit will be similar to our GT40R twin scroll setup with some upgrades.

- GT42R
- Twin Scroll Headers
- Twin Scroll Uppipes
- Twin TiAL Wastegates
- Twin Dump Tubes
- 4" Downpipe (unterminated)
- Lines, fittings, clamps, etc
- Kit will not retain AC unless lines are modified/bent

Darryl
www.ultimate-racing.com
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Old 09-18-2007, 09:46 AM   #35
SloRice
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Quote:
Originally Posted by Ultimate Racing View Post
- Kit will not retain AC unless lines are modified/bent
Just roll the windows down....you'll definately be going fast enough to get a good breeze
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Old 09-18-2007, 10:01 AM   #36
Ultimate Racing
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Quote:
Originally Posted by SloRice View Post
Just roll the windows down....you'll definately be going fast enough to get a good breeze
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Old 09-18-2007, 11:44 AM   #37
Homemade WRX
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also what 42r are you running and what A/R on the hotside?
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Old 09-18-2007, 12:37 PM   #38
Ultimate Racing
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Quote:
Originally Posted by Junior2JZ View Post
Nice job guys..
Thanks Junior!



Sal@UR
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Old 09-18-2007, 03:27 PM   #39
Ultimate Racing
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Quote:
Originally Posted by Homemade WRX View Post
also what 42r are you running and what A/R on the hotside?
GT4202R 1.01 A/R.

Darryl
www.ultimate-racing.com
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Old 09-18-2007, 03:52 PM   #40
PaulRex
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How come twinscroll setups need two wastegates? Someone draw me a picture here
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Old 09-18-2007, 05:42 PM   #41
spooln04
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SICK! Pics please. Awesome as usual UR.
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Old 09-18-2007, 09:26 PM   #42
mistermike3
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Quote:
Originally Posted by PaulRex View Post
How come twinscroll setups need two wastegates? Someone draw me a picture here
A twin scrol setup has two separate exhaust manifolds that run to the turbo. So basically instead of the two banks of cylinders running into one mainifold, or header, then to the up pipe, it is all separate all the way to the turbo, therefore making twin wastegates necessary. Much more efficient setup. JDM sti's are setup this way.
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Old 09-18-2007, 09:35 PM   #43
Homemade WRX
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Quote:
Originally Posted by PaulRex View Post
How come twinscroll setups need two wastegates? Someone draw me a picture here
put in the most simple words I can possibly think of is...you are basically running two engines.
two cylinders paired to one side of the turbo and the other two are paired to the other side of the turbo
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Old 09-18-2007, 09:43 PM   #44
Homemade WRX
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Quote:
Originally Posted by Ultimate Racing View Post
GT4202R 1.01 A/R.

Darryl
www.ultimate-racing.com
ok, I was going to guess 4204r on the 1.15 hotside...
interesting when comparing to AMS's 2.1 liter on long tubes...it has fewer cc's and a longer rod ratio...

makes me wonder what you guys have done for exhaust manifold tuning...


appoligize, going off into IC engines nerd mode
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Old 09-19-2007, 12:50 AM   #45
ilivas
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What kind of headwork does this motor have? Or is it just cams, springs, retainers, and cam gears?

Also, is the block sleeved.

Do you have any pics of the 42R kit? How much? I'm seriously considering this kit for my own car.
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Old 09-19-2007, 01:43 AM   #46
Marc5000
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wouldn't you prefer a turbo that hits max boost before 6k rpm?.. you need a smaller big-ass turbo.. mabe a gt35R.. i'm sure it will hold to your redline still and just spool sooner.. like you said.. you're barely tickeling this turbo..

i'm doing a EJ22T build... boring it out to 2.5 and sleeving it w/ductile iron.. then forged rods and pistons... and cam'ed wrx heads (tuned for power at mabe 5k rpm peak).. comes out to 7.55 to 1 compression with that setup so i can boost the **** out of it.. but yeah.. i think i'm going to go with a gt35r.. i've got a lot of work on my hands.. and so do you.. looks great for what you've done though!!.. you don't see that kinda power often at all!!
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Old 09-19-2007, 02:45 AM   #47
ilivas
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THe power they're shooting for on highboost is going to be way out of the range of a GT35R. A GT35R wont support much more than 600whp.

It looks like the could be hitting 850whp or more on highboost. This is right in the sweetspot of a 42R.
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Old 09-19-2007, 09:53 AM   #48
Ultimate Racing
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Quote:
Originally Posted by PaulRex View Post
How come twinscroll setups need two wastegates? Someone draw me a picture here
With the production kit we will be separating the engine's exhaust pulses into two uppipes, and then into the turbo's divided turbine housing to make the most efficient use of the large turbocharger. Each uppipe will have it's own wastegate to ensure that the two opposing banks never crossover.

Pictures of our GT40R twin scroll setup here:

http://forums.nasioc.com/forums/show....php?t=934405&

Darryl
www.ultimate-racing.com
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Old 09-19-2007, 09:55 AM   #49
Ultimate Racing
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Quote:
Originally Posted by ilivas View Post
What kind of headwork does this motor have? Or is it just cams, springs, retainers, and cam gears?

Also, is the block sleeved.

Do you have any pics of the 42R kit? How much? I'm seriously considering this kit for my own car.
Everything mentioned above plus porting.

Pictures are coming. The kit looks almost identical to the GT40R twin scroll kit that I have posted above except the turbo is a big larger, and it fashions a 4" downpipe (unterminated) as opposed to a 3.5" downpipe for the GT40R.

Darryl
www.ultimate-racing.com
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Old 09-19-2007, 09:55 AM   #50
Ultimate Racing
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Quote:
Originally Posted by ilivas View Post
THe power they're shooting for on highboost is going to be way out of the range of a GT35R. A GT35R wont support much more than 600whp.

It looks like the could be hitting 850whp or more on highboost. This is right in the sweetspot of a 42R.
Correct!

Darryl
www.ultimate-racing.com
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