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04-20-2011, 11:59 AM | #1 |
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Fp Hta Gt3794r
Anybody running this turbo? Thinking of using it on my setup and want to see what numbers people are putting up with this and how the driveability is. I see tons of evo's running it, but no subies.
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04-20-2011, 03:43 PM | #2 |
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because to make use of this turbo you will have to rev to at least 8500.Look at the dyno sheet on fp's sight with awd's evo they are running it out to 8800.
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04-20-2011, 05:02 PM | #3 | |
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Its a very well designed turbo for the straight line guy, imo I rev my evo to 9500 and havent even considered it probably because theres not enough open road around pwc without worrying about 5-0 It will make 900 whp if your motor is set up for it. AWD Motorsports went 8.80's with it in a street car. You could compare it to a pte 6765 but its a little bigger. |
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04-20-2011, 09:19 PM | #4 |
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500lbs @ 5000rpms? Thats on a 2.4L evo. On a short runner manifold this thing would work very well on a properly setup car. ER was reporting 250rpm later spool over the HTA3586. |
04-20-2011, 10:18 PM | #5 |
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****... this is little girls stuff... i say run it! that turbo will make full power on a efficient subaru engine around 5800rpm. and i mean that is whatever boost pressure your wanting to run at 18+ psi. I ran a 67mm turbo on my 2.5RS when i had it and absolutely loved it. I spun 8000rpm out of the engine and had full boost before 6k. Made for great street setup.
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04-21-2011, 09:23 AM | #6 | |
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04-21-2011, 09:46 AM | #7 |
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if you catch 30psi at 5000rpm and redline at 8000rpm that is 3000rpm of peak power, and if you catch 30psi at 4000rpm and redline at 7000rpm that is 3000rpm of peak power...whats the difference...its pretty easy to get the 2.5 to run out to 8000rpm, and its not like there won't be any power before 5000rpm. no it won't be an awesome autocross turbo or anything like that, but different strokes for different folks...it all depends on your driving style, habits, and goals for the car...
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04-21-2011, 09:53 AM | #8 |
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there are tons of people driveing around on bigger turbos as dailys and are perfectly happy, i say go for it and let us know how you like it
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04-21-2011, 10:57 AM | #9 |
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i agree...i had so many people tell me that the fpred 8cm was going to be too much lag for a daily driver, and man am i glad i didn't listen to them. i honestly love it and wouldn't have it any other way, and if i would have listened to everyone else, i would already be looking to upgrade to something bigger only 1 year later. really, once you learn your powerband and what gears put you in it at what mph, it drives just like any other turbo car...just takes a little getting used to and then you are good to go...
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04-21-2011, 11:17 AM | #10 |
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^ on a car that AVCS you can make large turbos come on very fast.
I'd like to see a Subie with a 3794 - we have at least one at our shop that will be running one in the near future |
04-21-2011, 11:32 AM | #11 |
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How do these connect to the uppipe? I have a full v-band setup now with tial hotside. Would this be plug and play or will I need a new hotside. Or would my 35r frame tial hotside fit on the 3794?
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04-21-2011, 12:00 PM | #12 |
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^^^^ If im correct, since this turbo is in a 35r frame, I dont see what the issue would be since your tial hotside is mated to the frame of your garret turbo now so I would go ahead and bet that it would fit no problem.
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04-21-2011, 01:48 PM | #13 |
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i think it will be a waste on a street subaru, been looking at this turbo for awhile for my evo and its just not worth it on a street/strip car. if you read ER post on evom its not just about spool. its also about how much boost you have to run before you make this turbo happy, he said that at 25psi it made 50whp LESS than his hta86 setup. and its even less attractive on a subaru because of the revs. you can pull an evo to 9500 with just a basic engine set-up 8500 on a subaru is pushing it without major head/oiling work from what ive heard. just doent seem worth it considering even ballz out its only good for 80-100whp over an 86 most setups wont even see 50whp over an 86 setup
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04-21-2011, 04:31 PM | #14 |
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^^^^I agree ,I run the hta3586 and would be hesiatant to run anything bigger for street /strip use.
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04-21-2011, 06:00 PM | #15 | |
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Hrmm 3794 |
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04-21-2011, 08:15 PM | #16 | |
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What do you mean by comes on?
Quote:
The above thinking is usually while subaru guys are number 2 in most instances. On a non-rotated setup aka front mount this turbo would perform insanely well. Far better then any 40r and most 42r setups. |
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04-21-2011, 08:41 PM | #17 |
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this car is far from a street suby, best believe
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04-21-2011, 08:48 PM | #18 |
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im running my fpred at 30psi and 30* timing at redline on my daily driver without sleeves with no problems. with sleeves you shouldn't have any problems running close to 40psi as long as you don't go crazy with the bore. i think that this turbo can't be much worse, if any, than a 40 or 42R, and there are people that run those on street cars without issues or complaints. also, if it is a 2.3L destroked setup with built heads, there are guys running out to 9000rpm daily on those things...AND...if it is a 2.7L with built heads, you may be able to spool this thing sooner and you would still be able to run out to 8000rpm. lastly, if either one of these setups are run with decent cylinder wall thickness (sleeves) and headbolts, there is no reason you couldn't run it out well into the 30's daily, and i find it hard to believe that you wouldn't see quite a bit more than a 35R with this kind of setup.
Last edited by amalgrover; 04-21-2011 at 08:56 PM. |
04-21-2011, 08:50 PM | #19 |
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Vehicle:04 sti 10.41@141 on e85@ 30psi--spinning |
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04-21-2011, 08:59 PM | #20 |
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Well, I'm ordering the turbo. We'll see how it works out. Motor is done and the trans is still being assembled. Motor is a hybrid, 2.5l block with 2.0l heads, cams, the usual things. Hopefully the car will make some power!
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04-21-2011, 09:02 PM | #21 |
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Vehicle:04 sti 10.41@141 on e85@ 30psi--spinning |
well good luck and keep us posted of results.
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04-21-2011, 09:09 PM | #22 | |
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...either way, good luck and definitely post up results... |
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04-21-2011, 09:53 PM | #23 |
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04-21-2011, 09:59 PM | #24 |
Scooby Specialist
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Join Date: Dec 2004
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Location: grove city ohio
Vehicle:04 sti 10.41@141 on e85@ 30psi--spinning |
well get on it brother and help with the r&d of whether or not this big 90lb/min turbo will work on a suby.
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04-21-2011, 10:04 PM | #25 |
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about time someone is looking at this turbo. i have thought about getting it also, but no one running it to compare. im in decision between this and hta86. keep us posted.
i agree with john. need the shop to buy one and give us some numbers/info.... |
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