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Tell me about your GT3794 HTA's

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Reveiws that you are seeking shouldn't be needed for this turbo. When you're investing in a turbo that makes over 650 awhp, you the buyer should already know what will happen when they install it. Many people run that turbo and have put up alot of times or dyno plots with it. If you want to go that fast, this turbo might be worth the investment for you. Its been said before, but great advise is finishing one thing before you start on something else.
 
The buyer wouldn't necessarily know the outcomes if they want to go that fast but haven't before or if they havent had experience with a turbo iver 60mm. I was only asking for information from those that have ran it. Have you ran it?

I was looking for more peoples personal experiences, not unlimited budget shops.
 
Damn, nobody gets the main point on the Question, guy just want to get first hand review, not a whole lectture of turbochargers 101. LOL

At 37psi hit full boost at 5500, 2.0 long rod, 280 kelford and 10.5.1
 
I had one on my 1G Auto but sent it back to FP and upgraded to the Super99HTZ


I had the FP3794HTA dual BB with the Tial .82 AR

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There are a lot of Evo's running the 3794HTA and can give you some numbers to base off of.

For my car which will be a track only car I wasn't concerned with lag since nitrous will be used to stall it up. I also had just bought the turbo a few months before the Super99 came out, so I was able to just send it back and swap it out. The Super99 is a lot larger and just about everything is different.

The 3794 is a T3 based turbo and center cartridge, the Super99 uses a T4 base center cartridge.

The oil feed's and coolant feed and return are the same, but the oil drains are different. Also the compressor and turbine housings are A LOT larger on the Super99 and make things more cramp in the engine bay. But I was more interested in the extra UMPF it gave over the 3794.

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You get what you pay for, in my opinion and from what I've seen at the Shootout and other race events FP is hands down the best company to go to for a Turbo. Customer service is the best out there and the products are top knotch.

The thing with any big turbo is you need to have the setup to handle and support it. A built bottom end to take the abuse, a head and other parts to flow the air it needs.

In my opinion and from research the 3794 is a turbo I would put on a car that could make 700-750awhp easily and be driven on the street and taken to the track as well. Now on a all out drag car I'm sure it could make 850+awhp and run high 8's with the right setup and conditions.

The Super99 will be able to do a bit more but with some extra minimal lag (big turbos lag period, if you want stock turbo spool get a stock frame turbo) and be able to go deep into the 8's and possibly even faster with the right setup and conditions.

If you notice I give lower HP numbers and times compared to what others have done, since the ones we have seen are on shop cars with a lot more $$$ into them than most of the average Joe can afford, so don't expect to get the same turbo as one of them and run close to that or make the same power.

EIther way, both turbos are great choices and I would run either one of them over a Holset turbo any day of the week, even if someone tried to give me a Holset I wouldn't take it, but thats just me. Everyone has their opinion and preferences.
 
Damn, nobody gets the main point on the Question, guy just want to get first hand review, not a whole lectture of turbochargers 101. LOL

At 37psi hit full boost at 5500, 2.0 long rod, 280 kelford and 10.5.1

This! Thanks kid LOL you needa update your profile ! Says your on a green. :thumb:

I had one on my 1G Auto but sent it back to FP and upgraded to the Super99HTZ


I had the FP3794HTA dual BB with the Tial .82 AR

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There are a lot of Evo's running the 3794HTA and can give you some numbers to base off of.

For my car which will be a track only car I wasn't concerned with lag since nitrous will be used to stall it up. I also had just bought the turbo a few months before the Super99 came out, so I was able to just send it back and swap it out. The Super99 is a lot larger and just about everything is different.

The 3794 is a T3 based turbo and center cartridge, the Super99 uses a T4 base center cartridge.

The oil feed's and coolant feed and return are the same, but the oil drains are different. Also the compressor and turbine housings are A LOT larger on the Super99 and make things more cramp in the engine bay. But I was more interested in the extra UMPF it gave over the 3794.

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You get what you pay for, in my opinion and from what I've seen at the Shootout and other race events FP is hands down the best company to go to for a Turbo. Customer service is the best out there and the products are top knotch.

The thing with any big turbo is you need to have the setup to handle and support it. A built bottom end to take the abuse, a head and other parts to flow the air it needs.

In my opinion and from research the 3794 is a turbo I would put on a car that could make 700-750awhp easily and be driven on the street and taken to the track as well. Now on a all out drag car I'm sure it could make 850+awhp and run high 8's with the right setup and conditions.

The Super99 will be able to do a bit more but with some extra minimal lag (big turbos lag period, if you want stock turbo spool get a stock frame turbo) and be able to go deep into the 8's and possibly even faster with the right setup and conditions.

If you notice I give lower HP numbers and times compared to what others have done, since the ones we have seen are on shop cars with a lot more $$$ into them than most of the average Joe can afford, so don't expect to get the same turbo as one of them and run close to that or make the same power.

EIther way, both turbos are great choices and I would run either one of them over a Holset turbo any day of the week, even if someone tried to give me a Holset I wouldn't take it, but thats just me. Everyone has their opinion and preferences.

This is good info, love the polished compressor housing, did FP do that? Yeah i decided keeping a 35r frame was best, super 94 wouldnt have fit. I wanted grow room lots of grow room.

If you look at my profile I'm pretty much intake manifold and fuel pump away from having a monster. Everything else is there.

Anyone else? It's interesting to see spool numbers with different setups with one of the best 67mm turbos out there.

I'm 9:1 2.0 so i expect 30psi by 5500 ( as told by amber)

Where are you guys putting your boost source since 3794 isnt tapped?

Lower ic pipe? T off bov?
 
A local metal shop polished both housings for me. As far as boost reference I was just going to drill and tap the compressor housing.
 
Put your welding skills to use and weld a -4an male fitting on your lower intercooler pipe.

I dont think I'd use AN vac lines. My boost controller is just a hallman mbc nipple connection so I'd probably just weld a barb but is the lower ic pipe better than getting manifold boost refrence? I have always gone off the comp cover but i never thought about it til now.
 
I love mine. Bolt on replacement for the 4088r but with a 1.15 T4 twin scroll housing. I got it on sale at the end of last year so it was a great deal.

Hal
 
I wish i could get mine on sale but all the 3794's from here out are now FP billet CHRA and they won't budge on price :(
Ive been torn between hta 86 and 94 but everyone is tellin my 94 so i be goin that way, i just hope it's not tooooo laggy, i mean 500rpm isnt too bad
 
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Its going to be laggy on a 2.0L granted not as bad as the old style cast wheels but still.....it's a 67mm wheel. Pick the HP you want to make and get the smallest turbo that will get you there. That's always my rule of thumb. Not always cool getting the biggest turbo especially if you like driving your car a lot on the street.
 
I drive it on weekends but i have a daily driver. The dsm is basically gonna end up a dragster. And i never have a hp goal. But the 3586 is basically same size as hx40, and i know i want growing room. So why buy a 3586 and then upgrade to a 3794 when i could just grt the 3794 first especially sinxe they cost the same.

I habe no problem with 30psi by 5500

I do have a problem with 30psi by 6k

But again, she will 2 step launch at 6k rpm and be anywhere from 5k-8500 at the track. Does this sound like the turbo for me? I'll probably be fine with 800hp as an end goal, and i worry about constant motor rebuilds and broken things. Im not on an unlimited budget....but when i get there to 800hpwho knows if itll get boring. The 3586 would be pushed to the max to make numbers like that.

I don't see a point in a 700-900hp street car, your asking for license suspensions and a trip to the crusher.

The 3794 is safe to say the largest turbo I'll ever put on my dsm.

Sort of wish FP offered like a...... 37r turbine maited to a 64/88 compressor. But sadly the hta88 is a 67mm as well.

I sort of feel there is a gap needing to be filled where the pte6466 lives. I'll just never put another pte turbo on my car again.
 
I think most of the guys running this size turbo on 4g's are using hard block. I think that is a reality on 800 plus hp 4g's.

You think?

Your opinion?

Why not let those guys speak for themselves?

Hal
 
The boostin performance 2g is harblocked there are some others too. I don't have the details on every 4g race car off the top of my head. I guess it comes down to insurance and everyone's own personal idea of reliability in a race engine. The reality is you don't just drop in a 800hp motor and just hit the track week in and week out like you do on a 400hp engine.
 
I agree, you cant have your cake and eat it too. higher the horsepower, shorter the lifespan. Its always a sacrifice one way or another. But i say if i can get 25k miles out of my engine im VERY happy

Urban: cant wait to see that build thread start movin. I know there was a wait time on it but did you get the 3794 yet or still waiting on shipping? Ive been eyeing that snail as well. Looks puuuuurty
 
Just gonna play devil's advocate here for a second.... Any reason why you aren't going to run the 88lb/min turbo you already have (HX52)??? Seems like you could have run that turbo and spent the money elsewhere.
 
I dont expect to get it until february honestly. They said 2-3 months?

Just gonna play devil's advocate here for a second.... Any reason why you aren't going to run the 88lb/min turbo you already have (HX52)??? Seems like you could have run that turbo and spent the money elsewhere.


Cause the turbine is effin huge and it will lag for me like none other.

I bought the hx52 for rebuild experience. I never really planned on running it.....

I mean look at this

3794 specs
Compressor- 67/94
Turbine- 72.5/66.5

Hx52 specs
Compressor 71/98
Turnine 70/84

As you can seeeeee the hx52 is really a huge mofo i dont wanna mess with. Plus it's twin scroll and I'm not.


So not only is the 52 laggier it's also larger and makes less power than the 3794 as well as might cause engine bay space issues.

The 37 fits in a 35r config.
 
Point taken. I couldn't remember what Steven had posted about his HX52 setup and when it hit full boost. I just went back and read 6500rpm.. but on pretty low compression, and not in twin scroll form (I think). That being the case, I can clearly see where the money for the 3794 is well spent. Still probably won't discourage me from running mine just to see what I can make it do on my 1g.
 
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Here is the 52 for comparison
.

For all those pte lovers....

The 3794 is basically the same specs as a 6766

And the hx52 is basicallt a 7285 LOL
 
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