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Old 11-03-2008, 11:34 PM   #1
Headstart101
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Default Please help me decide.

oK im looking for 400whp, i looking at the rotated 30r or the stock location gt52, i was goin to do cp pistons but i changed my mind because im convince the stock block can handle it. Please post setups that making 400whp on a stock block with no problems and how long it been running with the setup. If there is any blown motor please most the problem for i have heard the pistons are the weakest link in an sti motor. I have 5k to spend, i if i get the 30r it would be a used kit.
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Old 11-03-2008, 11:36 PM   #2
Turbovan
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....
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Old 11-04-2008, 01:02 PM   #3
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Quote:
Originally Posted by Headstart101 View Post
oK im looking for 400whp, i looking at the rotated 30r or the stock location gt52, i was goin to do cp pistons but i changed my mind because im convince the stock block can handle it. Please post setups that making 400whp on a stock block with no problems and how long it been running with the setup. If there is any blown motor please most the problem for i have heard the pistons are the weakest link in an sti motor. I have 5k to spend, i if i get the 30r it would be a used kit.
If I were you I would wait until I had enough money to do it properly. Don't do anything half assed that can ruin your car. There are many ways to get 400whp. Going rotated is your best bet, since big stock location turbos are a pita.
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Old 11-04-2008, 01:52 PM   #4
Steve.804
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The crank and rods are fine for 400awhp, but pistons are a well known issue with these motors at those power levels. Sure you may find a guy who's been pushing that power for over a year as a daily driver just like you can find a guy who had his piston rings go after a couple months of driving. I'm sure you're fully aware the safest thing for the car is a good tune.

I'm in the same boat as you and decided on a UR rotated 30R kit, but I'm going to do pistons at the same time. Why risk it? Pistons are not too expensive compared to what you'll be spending on the turbo kit and you'll be elbow deep in the motor slapping it on, makes no sense to not do the pistons.
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Old 11-04-2008, 02:24 PM   #5
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Go all in if you are going to do it. I did the Dom III and am not pushing the turbo to its potential on Pump gas or really even on Race gas for reliability. I have had my Dom III for 8,000 plus miles, a full season of Drag racing and two Full Road course track days. Canyon runs and Freeway pulls come pretty often as well. I haven't had any motor issues, I didn't want to do pistons because you have to pull the motor to do so. I figure if I am going to pull the motor it is going to be replaced with a www.raw1performance.com track series block and heads. Set my Rev limit to 8,000 rpm, and boost my turbo to its absolute choke line. Till then though I will be stuck with what I have.



You can tell looking at the Dyno that more power can be made with this turbo if we chose to not taper the boost as much as my Peak power holds for nearly 1,000 rpm. But I am on a stock motor so the tapering was necessary.

I was debating on the Element GT52 turbo but decided to go with Blouch because of the Ball Bearing. Not necessarily for spool but BB turbo's have been shown to last longer than Journal bearing. Rotated will be more efficient up top than Stock location. Either way you will be close to your power levels.

FWIW the Dyno I am tuned on Stock STi's make around 205-215 whp. With the map of the above Dyno I was dead even with a Porsche 911 Turbo on Miller Motorsports parks Main straight that is about 3/4 of a mile long, I was just passing the 150 mph mark when I had to SLAM the brakes. So I am a good 480 hp car. A 2006 Corvette Z06 made 20 whp more than I did on this same dyno.

Last edited by Stames_wiltz; 11-04-2008 at 02:32 PM.
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Old 11-04-2008, 07:36 PM   #6
TDagen
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wow thats a nice graph at alttitude... And a mustang dyno at that...
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Old 11-05-2008, 12:18 AM   #7
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Im also debating on weither to go with the GT52 or a GT30r.
It seems that you can make the same amount of power with a GT52 as a 30R.
Bumping for more numbers!!
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Old 11-05-2008, 12:41 AM   #8
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The Element Tuning GT52 is a fine stock location turbo. It is a proven solution for a stock location turbo. Many are running and no issues to speak of. I too ran mine for over a year with absolutely no problems to speak of. Excellent power, great spool on pump gas and even more with leaded race fuel or WI. Check my old thread.
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Old 11-05-2008, 05:19 AM   #9
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the gt52, dom 3, fp red, and gt30r are all great stock location turbos. I had an fp green, blew my motor (too much boost) and now im getting forged internals. I will be running dom 3, aem 50/50, 850cc, ewg, blah blah blah... on a mustang dyno i was estimated 440-460 on a safe daily driving (with occasional fun) tune
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Old 11-05-2008, 06:44 AM   #10
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Quote:
Originally Posted by TDagen View Post
wow thats a nice graph at alttitude... And a mustang dyno at that...
indeed it is, but also realize this is not pump gas
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Old 11-05-2008, 12:31 PM   #11
Stames_wiltz
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Quote:
Originally Posted by MattPersman View Post
indeed it is, but also realize this is not pump gas
Agreed it is not pump gas it is race gas set at 24 psi tapering to around 20 psi. My pump gas is set at 20.5 psi tapering to about 18.5 at redline, It made 330 torq and 340 whp on the same dyno. It is enough on pump to ever so slightly walk a C5 corvette Z06 or a 06-07 reg. corvette. The NEW corvettes with the extra 30 hp walk away from a roll.

As mentioned above, any stock location or rotated 3076R turbo will net you near/at or slightly above 400 whp depending on mods, dyno, tuner, condition of motor. The Rotated 30r WILL BE MORE EFFICIENT. The stock location turbo's are frankenstein turbo's that often mix Garrett with Mitsubishi to fit the stock location. My Dom III has the larger 8cm^2 hotside which equates to something like a .59 A/R which is .04 smaller than the smallest hotside the rotated offers, so you know that the stock locations are choking the motor even with the bigger hotside. More power can be made with rotated, spool is marginal, maybe 500 rpm at absolute best and price wise it is sixes as well.

Good luck choosing!
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Old 11-05-2008, 12:55 PM   #12
r8r4life
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Here is one on 94 oct.Rotated 30r same dyno same tuner as Stames.
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Old 11-05-2008, 01:22 PM   #13
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Quote:
Originally Posted by mannyOlicious View Post
the gt52, dom 3, fp red, and gt30r are all great stock location turbos. I had an fp green, blew my motor (too much boost) and now im getting forged internals. I will be running dom 3, aem 50/50, 850cc, ewg, blah blah blah... on a mustang dyno i was estimated 440-460 on a safe daily driving (with occasional fun) tune
that would be real hard to pull off, youd have to max out a dom III to be making 450 wheel on a mustang dyno at like 30 pounds. how much boost do you plan to run on your daily tune? you should have gone bigger i feel if your building the motor, the dom III is not too much bigger then your old green. your going to make similar power maybe 20 wheel more.
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Old 11-05-2008, 02:33 PM   #14
mannyOlicious
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Originally Posted by godforbid67 View Post
that would be real hard to pull off, youd have to max out a dom III to be making 450 wheel on a mustang dyno at like 30 pounds. how much boost do you plan to run on your daily tune? you should have gone bigger i feel if your building the motor, the dom III is not too much bigger then your old green. your going to make similar power maybe 20 wheel more.
yeah at the moment im financially challenged so im working with what i have. I want a gt35r setup down the line for sure but for the time being, the dom will do.

and yes, it will be pushing it and i definitely dont want to put too much stress on the motor, turbo, etc, so i will be happy with whatever numbers i get
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Old 11-05-2008, 06:02 PM   #15
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Quote:
Originally Posted by Headstart101 View Post
oK im looking for 400whp, i looking at the rotated 30r or the stock location gt52, i was goin to do cp pistons but i changed my mind because im convince the stock block can handle it. Please post setups that making 400whp on a stock block with no problems and how long it been running with the setup. If there is any blown motor please most the problem for i have heard the pistons are the weakest link in an sti motor. I have 5k to spend, i if i get the 30r it would be a used kit.
What kind of car do you have?
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Old 11-05-2008, 07:20 PM   #16
Iflysti06
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Sti but he never said what year it was?
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Old 11-05-2008, 08:38 PM   #17
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Originally Posted by Iflysti06 View Post
Sti but he never said what year it was?
Aww I see that he said sti now. V7/8 2.0 or 2.5. Race gas or no. What dyno do you wanna make 400 on? Elevation? Light wheels or heavy? OT or PPB? etc, etc, etc
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Old 11-05-2008, 08:54 PM   #18
Clark Turner
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I like the Element GT52 alot. Good fmic and good tuner and you will get great power.

The Perrin GT30R kit is also a nice way to go. On 93 octane with the MSPT intake, 390 to 410whp is easy on pump fuel with my protune map (or MSPTs). I get an easy 450 to 470whp on c16 with a simple switch of the map.

Clark
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Old 11-06-2008, 12:03 AM   #19
nvrenufsti
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I currently have an Element GT52 with oversized CP pistons, but not sure of the whp output until I get my retune for 91 octane. Hopefully within 2 weeks i'll know. I like the GT52 alot so far even when i'm just at 17psi. I'm not sure what octane to go with with a race gas tune. I'm able to get 100 leaded for around 4.50/gallon so not sure if I want to spend the extra money for say.... c16 and not much more power, but I'm unfamiliar with what kind of gains I can get per octane levels.
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Old 11-06-2008, 12:39 AM   #20
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I have a gt30r with sti shortblock and drop in pistons. The car runs strong with 427whp at 25psi daily. If you are interested I may be selling the whole kit to upgrade. Let me know. Either way, the gt30r is the way to go imho. Stock location turbo's are nice, but nothing beats the ease of just swapping out your 30r for a 35r or larger when you feel like it. One of the best perks is the sound! It's amazing.
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Old 11-06-2008, 12:47 AM   #21
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Originally Posted by nvrenufsti View Post
I currently have an Element GT52 with oversized CP pistons, but not sure of the whp output until I get my retune for 91 octane. Hopefully within 2 weeks i'll know. I like the GT52 alot so far even when i'm just at 17psi. I'm not sure what octane to go with with a race gas tune. I'm able to get 100 leaded for around 4.50/gallon so not sure if I want to spend the extra money for say.... c16 and not much more power, but I'm unfamiliar with what kind of gains I can get per octane levels.
element tuning makes some great turbo. im waiting for my 20g turbo w/ garret wheel from element tuning.
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Old 11-06-2008, 01:20 AM   #22
Clark Turner
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Over 91 octane, 100 octane should give an easy 50 to 60 whp without to much trouble. Going to C16 will allow you to max out your setup. Typicaly, 100 whp or more over pump gas. The turbocharger or IC ect will likely top out on C16.

My car gains about 150whp on 100 octane over 91 octane. I gain a further 150whp on C16. But my engine is a higher compression built motor with a large turbocharger.

Clark
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Old 11-06-2008, 07:21 PM   #23
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Are you saying 300whp over 91oct, with C-16 on your ride? Have you tried testing with Q-16 since it came out, I here that it supposed to be real good for our turbocharged cars, says a VP buddy of my dad's over in Wildomar, Ca. I forget exactly but I think he said it produces around 15% more hp. If I remember right. Dont know a price on it but C-16 is 13.50 a gallon out here, I got my tune on it. And love the gas, its way worth it to spend the extra 5 bucks a gallon over 110
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Old 11-06-2008, 10:11 PM   #24
Headstart101
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What kind of car do you have?
Its a 05 sti
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Old 11-06-2008, 10:13 PM   #25
Headstart101
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Originally Posted by 04blkbeauty View Post
I have a gt30r with sti shortblock and drop in pistons. The car runs strong with 427whp at 25psi daily. If you are interested I may be selling the whole kit to upgrade. Let me know. Either way, the gt30r is the way to go imho. Stock location turbo's are nice, but nothing beats the ease of just swapping out your 30r for a 35r or larger when you feel like it. One of the best perks is the sound! It's amazing.
How much willl you sell the kit for?
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