Hi all , I'm curious to know if anyones using Garrett's GT30 and GT35 turbine housings on these HTA 30R and 35R turbos ? I remember reading that these housings were in short supply in the US so the next best was the T31 housings .
I guess the GT housings would not be very easy to package on transverse engines too .

Also its interesting that Roberts gone with a T04S port shrouded housing on the HTA30R . I was half expecting them to use the T04E PS housing but it must not have suited the compressor wheel they wanted to use .

I don't suppose there are any long term plans by FP to look at a GT3071R type HTA turbo ?

Good result and thanks Dave for posting the results .

Cheers A .

 

Bummer and I was just about to buy this "used" kit... Well you may just have a buyer for a new kit then... Of course I will also need injectors and such... Of course if the HTA3065 is coming out then I may have to wait...Oh the agony of decisions. Come on Dave, convince me one way or the other. Which Kit to be used for street fun...

 

Just looking at the Buschur dyno results for the cnoevol car here:
https://www.evolutionm.net/forums/sh...ghlight=hta35r

The cnoevol car was running the HTA35 with I think the .63 a/r housing.
It made more power at 4000 and 4500 rpm than the .82 a/r HTA3076.
If the cnoevol car had been on race gas it probably would have also made more power the rest of the way up from there. So I'm thinking there's not much point in the HTA3076 with .82 hot side - get the HTA35 with .63 a/r instead, and make more power thru the entire rev range.
The .63 a/r HTA3076 on the other hand should be quite a bit stronger than either of these up to about 4500 and still have a pretty respectable top end. Like the man said:

Gary

 

Both turbos were run on .82 a/r as stated ealier pg. 1.

BTW
David do you anyone for that matter have a dyno sheet with the .63 or cast .68 a/r housings? Ive looked a other dyno sheets for the gt3076r and they are very simmilar... Is there any benefit to get the hta in the 3076?

 

That is far as the spool is concerned. It flows 52 lb/min vs 57 lb/min more up top but spool looks almost the same...

 

The thread on Marque's car (cnoevol) doesn't say what a/r his HTA35 is. Marque himself didn't know what the a/r was when I PMed him a few weeks ago. But I think it's a .63 a/r.

Also, look at the mods on his car, very similar to DB's white RS. Same cams even. So comparing his car to the 3076 car in this thread, it's not the same car on the same day, but it is the same dyno and it's pretty darn close the same everything else except the gas and the turbo!

Gary

 

Adrian, here's one on Smogrunner's 35:

https://www.evolutionm.net/forums/sh...ghlight=hta35r

As I remember he already had the GT35 with the Garrett GT turbine housing and he sent it in to FP for the HTA rebuild.


Gary

 

Giving an opinion on the turbo to run is a tough one. I really enjoy driving a car with extremely good low end and quick spool up. For this type of build the EVO Green is hard to beat.

The HTA35r is laggy compared to the Green but better than the standard 35r.

This new HTA3076 is middle of the road between the two, well not quite middle.

The HTA3076's are in stock and available, which makes me happy and I'd love to push them but the fact is, for me personally, I can't sacrifice the 150 additional whp the HTA35r made for the gains in low end the 3076 had.

 

Dave your info is always appreciated. What I would like to know is what would you use on the stock block on the street/track if you have 91 pump. Us cali guys don't see as great a benefit from the fp green as the 93 guys (minus meth) so I'm guessing the HTA3076? If so can you pm me with a price on a HTA3076 kit? Thanks.

Matt

 

I love the way you put that.

 

I would really like to see a car tuned with a 3076 and see what max power it can make. Then pull that off and put on the HTA 3076 and see how much more you can make.
I have been thinking about sending my fp3052 in, to get it turned into a HTA 3076 but still using the fp turbine housing. If my heavy *** galant can trap 128 and the 3076 I wonder what it will do on a HTA 3076?

 

I've really enjoyed reading through this entire thread and the first thing I'd like to comment on is the fact that the numerical comparisons were/are more insightful than the actual graphs. I'm a numbers guy and numbers don't lie. It's nice to see each respective dyno graph but there's something about numbers. Secondly, I'm not even in the same category as most of you considering that I'm still running the stock VIII turbo. One of the things that I can relate to is how my car "feels" with its present tune and boost levels (305whp/301wtq on 24PSI) when comparing the numbers that the HTA3076r put out and applying a little imagination. I reached my peak of 305whp at 6100RPM. I gained 160whp from 3000-5000RPM and the "experience" is pretty exciting. I know we're talking about apples and oranges here though. At about 4600RPM, the HTA3076r at 22PSI is putting out globs more wtq (not to mention whp) that I can only imagine as being a very fun car to drive. The .63 housing would be the preferred route for me as I would also run methanol. I have a few friends that run the GT35r/methanol combination but the HTA3076r/methanol combination wouldn't be too shabby. I know eventually a Green/meth vs. HTA3076r/meth comparison on daily-driven cars will be done and that should be the only information I need to help me decide which route to go. In the meantime, the Green/meth is the route that seems most appealing to me. Sorry for the long post but all of this turbo testing is exciting to me and gives me something to look forward to once I return from Iraq the next time I deploy.

 

Cant wait to get my hta 3076

 

Since there were a few questions as to comparing the HTA3076 to the OKIX Green, here you go. DB, I hope you don't mind me posting these, but it's a good comparison since ours was also run on your dyno. Differences are, we used Import vs C16; we had max psi set at 37 vs 31.5 psi; and the obvious diff. car,weights,temp, etc, but both running a 2.0 Buschur Stage 3 motor, ours with a cast manifold but same Intake/TB, we run JUN272's vs Buschur 272BFC's. This data is not to say look at ours or anything even close to that. It's to take a known car/engine/results (OKIX) and compare it to a new turbo. Very close similarties however. Hope the data is useful. I think it points out why David has said many times, the Green is a hard turbo to beat. I think the 3076 has tremendous potential, but the Green is a lowend torque monster with high enough boost.

edited because wtq/whp numbers were compared in reverse: working on remake.

The Following is a CORRECTED TABLE:

 

Wow you put more power at higher rpms than the hta3076 but are down in torque by over 150lb ft. How did that happen?

Also the gains seem bigger for the hta 3076 when put down in numbers versus a graph. Its a substantial improvement to 5000rpms. But the ultimate power the 35r can make is so appealing.