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Old 10-24-2008, 01:06 AM   #1
alfriedesq
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Default New Forced Performance HTA86 (Gt35 based turbo)

After finally breaking into the 10's with my Gt35 powered STI, and loosing to Curious George's M Coupe later that week, it was time to step up my game

First, there are a whole bunch of new turbos out there and some of them are obtaining amazing results

Buschur Racing has been testing all the new options on their now famous RS street car and the most powerful of the bunch has proven to be the new Forced Performance HTA86 which is a GT35 with a upgraded special billet turbo wheel

I am hoping to see an additional 50 - 60 whp with this new turbo

Becuase this additional air flow will require more fuel, I am now also converting to 1100 top feed injectors

Here is the new turbo in its home

I am tuning a fully buolt STI with the FS635 this week and also my STI with the HTA86 so I should have some good comaprisions to post up soon

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Old 10-24-2008, 01:08 AM   #2
stealth06wrx
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Wow Al, that is a beastly looking turbo! How many lbs/min is this thing rated aT?
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Old 10-24-2008, 01:28 AM   #3
rexworx
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^^^Thats what she said...
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Old 10-24-2008, 01:28 AM   #4
alfriedesq
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Quote:
Originally Posted by stealth06wrx View Post
Wow Al, that is a beastly looking turbo! How many lbs/min is this thing rated aT?
From FP web site

Quote:
The GT3586HTA™ is the newest evolution of our renown HTA series of turbochargers. Realizing that the power output of the GT35R could be pushed a little farther than the 82HTA wheel, we created the 86HTA size to extend the mass flow well beyond 75 lb/min with obversved power output in the 730whp range on well prepared cars. This turbo is available with a variety of turbine housings, but using anything smaller than a .82 is stupid.
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Old 10-24-2008, 04:00 AM   #5
toutanje
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Nice, looking forward for results!
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Old 10-24-2008, 05:50 AM   #6
SOOBE
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i hope your changing the .63 out
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Old 10-24-2008, 07:15 AM   #7
subiefast
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Judging by the name this turbo has an 86mm exducer on the compressor??

If so, this has a bigger compressor than the 37R(84mm) which is 75 lb/min.
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Old 10-24-2008, 09:53 AM   #8
rexspeedmaster
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looks nice AL. I cant wait to see it in action. that m-coupe better watch out. haha
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Old 10-24-2008, 11:32 AM   #9
Steve.804
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wow that's huge! Can't wait to see the results

Quote:
After finally breaking into the 10's with my Gt35 powered STI, and loosing to Curious George's M Coupe later that week, it was time to step up my game
Sorry to go off topic but where can I find more info on this M coupe? I love bimmers and I'd love to read more about an M coupe that can beat a 10 sec STI...
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Old 10-24-2008, 12:32 PM   #10
TAZ_WRX
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cant wait for the results ..... turbo looks sweet!
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Old 10-24-2008, 01:10 PM   #11
CatfaceType-R
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looks huge al, keep the vids coming; i watch those sometimes one after another, you are hilarious

didn't think evom had all the drama it does, you should tell your boy buschur to tone it down imho...
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Old 10-24-2008, 01:31 PM   #12
dmross
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Quote:
Originally Posted by Steve.804 View Post
Sorry to go off topic but where can I find more info on this M coupe? I love bimmers and I'd love to read more about an M coupe that can beat a 10 sec STI...
+1, need more info on M.
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Old 10-24-2008, 01:35 PM   #13
Millennium Auto
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Turbo M Cars Are Beast
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Old 10-24-2008, 01:46 PM   #14
alfriedesq
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Quote:
Originally Posted by Steve.804 View Post
wow that's huge! Can't wait to see the results



Sorry to go off topic but where can I find more info on this M coupe? I love bimmers and I'd love to read more about an M coupe that can beat a 10 sec STI...
A few points

"Beating" the STI is not entirely accurate as from a dig the STI would no doubt pull the M Coupe by many cars

On a roll with two guys in the STI and one guy in the M Coupe the M Coupe was pulling hard on the STI at about 100

The M coupe runs twin Gt28 turbos, blow through MAF, stock ecu, Aquamist etc. It was featured in European Car Magazine and Performance BMW earlier this year. It makes around 600 to the tire.

The main thing about the M coupe is that has been very reliable over the past two years.

Al
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Old 10-24-2008, 01:52 PM   #15
alfriedesq
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The HTA86 has proven to be very effective on the Evos running in street trim 9.0 @ 159 mph. Also, it broke all previous T3 turbo records on the Buschur dyno with 720 to the tire on his Mustang dyno.

I am hoping that it will provide similar results on the Subaru platform.

As we speak the STI with the Cosworth Engine, Magnus Intake, AEM, etc and FS635 turbo from Buschur is being put on the dyno. I am most interested to see if that car will crak 600 whp at 30 psi of boost on pump with meth and to compare the shape or the dyno curves to the Gt35 the customer previously used when he was making 560
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Old 10-24-2008, 01:55 PM   #16
alfriedesq
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Quote:
Originally Posted by Millennium Auto View Post
Turbo M Cars Are Beast
They do make a lot of power

For example I tuned one this summer with a Gt40 that made over 800 whp with pump and meth on 26 psi.

The problem with those cars is a total lack of balance and ability to harness any significant power. Simply put they are very poor at putting the traction to the ground.

AWD has significant advantages.

The highway rolls from 50 to 120 mph are where turbo M cars shine

Anything off a dig and they are 13 second cars on the street
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Old 10-24-2008, 02:00 PM   #17
wrxhard
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So the hta86 turbo and the fs635 aren't the same thing then?
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Old 10-24-2008, 02:04 PM   #18
claycron
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Al have you ever been arrested for street racing?
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Old 10-24-2008, 02:06 PM   #19
Tenacious Bee
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So, what to play
with next ?

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Quote:
Originally Posted by alfriedesq View Post
The HTA86 has proven to be very effective on the Evos running in street trim 9.0 @ 159 mph. Also, it broke all previous T3 turbo records on the Buschur dyno with 720 to the tire on his Mustang dyno.

I am hoping that it will provide similar results on the Subaru platform.

As we speak the STI with the Cosworth Engine, Magnus Intake, AEM, etc and FS635 turbo from Buschur is being put on the dyno. I am most interested to see if that car will crak 600 whp at 30 psi of boost on pump with meth and to compare the shape or the dyno curves to the Gt35 the customer previously used when he was making 560
Wow, that sounds like a great set up. Looking forward to see what it puts down. Keep it up Al. I enjoy your videos and the attitude you display in them. I guess because you come off as an everyday normal guy the intelligencia has it in for you LOL ! You need to install a board up your arse, stop swearing, laughing and put on a lab coat bro!!

Some of these guys forget that in the end , unless you are on a pro race team this is supposed to be fun.
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Old 10-24-2008, 02:33 PM   #20
Millennium Auto
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we are working on a e36 with a gt42r and ppf manifold. we are going the pyramid ring way to prevent the head gasket issues at over 20psi
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Old 10-24-2008, 02:45 PM   #21
Paul
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Quote:
Originally Posted by wrxhard View Post
So the hta86 turbo and the fs635 aren't the same thing then?
Yea....whats the difference??
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Old 10-24-2008, 03:02 PM   #22
tux121
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You're a mad man
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Old 10-24-2008, 03:19 PM   #23
Audiosavvy
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I wanna see this M Coupe that beat your 10-sec STi




And a 75lb turbo? Jesus. So on my 2.0, I'd see full boost around....... 7k RPMs
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Old 10-24-2008, 03:21 PM   #24
alfriedesq
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There is a video of the race in my You Tube Channel - (Dyno Flash)

I wont post it here as it violates forum rules
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Old 10-24-2008, 03:28 PM   #25
D Money
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wait al, so this is different than the hta gt3582r turbo?
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