yes

 

It is an Evo5 PWR radiator... but it was test fit with the OEM radiator as well.

 

Thanks for the info on the F1 turbochargers and manifold. I will still wait to hear how the Turbonetics hold up before I go picking one up. I'm sure they have gotten better in the past several years, but at one point in time, you seemed to be lucky if you could get more then 10 passes out of a Turbonetics turbo. Maybe it is just us high altitude guys running them at maximum shaft speed, but I saw probably 10 turbonetics turbos fail with VERY little use on them on several different cars. On the flip side, I ran a GT2871R Garrett CHRA for 2 years solid with the boost at 25 PSI daily and then at the track I would basically disconnect the external wastegate and run it at maximum shaft speed. The turbo even ate an EGT probe and still kept making great power until the day I pulled it off. Garrett GT turbos just seem almost bullet proof as long as you feed them the oil they need.

Any word on if the ball bearing system has been redesigned on the turbonetics though? There for a while they were using a "semi-floating" bearing system which seemed to fail the first time it say anything over like 20 PSI.

As for the T67, I'm just going off of what I've gotten from a few different sources that have reputations for knowing turbochargers quite well. One thing about the T67 map I have is that it says it is a "63/61 trim" or something to that effect. It has been quite a while since I've seen a T67 wheel or the complete map (the one I have that I can find I edited it down to use in a spreadsheet calculator), but is it by chance an extended tip wheel? Could that explain the discrepancy on the wheel diameters? I don't even know if Garrett has messed around with extended tip wheels though?

The map you posted looks roughly the same as the map I have as far as efficiency and shaft speeds. Garrett also has had a habit of randomly changing maps and wheel names/nomenclature with no real reasonable explanations as to how they all relate anyway. Garrett has so many wheels made with minor variations that it's really difficult to say what the wheels really are. Hell, the GT40 has had 6 blade and 7 blade wheels in it and the name never changed. Obviously they are not the same turbocharger though.

Isn't there a "GT37 76mm 50-trim BCI-18C" compressor wheel? I was under the impression that this wheel was what some of the smarter turbo builders where using in their "50-trim T3/T04E" turbochargers.

I know it seems like all of this is off topic, but picking the best turbo is the most important part of the setup and I'm interested in some of the choices Full-Race has made to find what they feel works the best. As always, feel free to answer or not answer as I'm just your regular turbo info junky, even when most likely I won't even use a lot of it.

 

Does the downpipe for the twin scroll GT35R kit combine the downpipe and o2 housing as one piece? Will there be an option to include an intake kit with these turbo kits? How much extra will it cost to include an intake kit?

 

There is no o2 housing as it's an external wastegate design. So the downpipe bolts up the the exhaust side of the turbo and that's it . In actuality, for this setup it v-bands to the exhaust side.

 

^Thanks.

 

That's purrtty

 

So I am guessing FullRace only comes in an externally vented (open) wastegate exhaust setup, correct? I keep reading the great things full race is developing and they are starting to tug on my wallet, if Ted is on board that doesn't help any either

 

Max Power's picture is of a custom ATP Divided T3 housing, not the Full Race product. For GT30 and GT35 applications, Full Race uses a divided T3 as well, but it's a different housing, though it will look similar.

As for WG recirc, I'm sure you could get it done, but with 2 tubes to plumb back in, I'm sure it would be at least a little tricky.

 

It would be nice, some actuall results too becuase I am really interested in running the 4088 on a 2.0 instead of a 2.3 to see how well it would be for street and strip combo.

 

MAN o Man I want a Twin Scroll GT35R, I can only immagine the possabilities with an Evo IX :0. Immagine some low end torque!!

 

You don't need two wastegate tubes. Also to make it easier you could make the wastegate dump's collect before recircing them to make it more simple.

Scorke

 

Yeah, but if you ever had to take it apart, getting it all to line up again wouldn't be fun. Thank god it's all v-band connections, otherwise you'd be outta luck.

 

the turbonetics is actually on the left (red backing plate) the garrett is on the right (silver backing plate). They should actually perform almost identically becuase they use the same turbine and compressor wheels. The only real difference is the GT35R uses a garrett T25 ball bearing center section while the turbonetics uses their T4 ball bearing center section (note how much thicker it is)

A twinscroll setup would cause the GT35R to have better throttle response, more lowend/midrange power, faster spool, and allow you to use a larger and larger cam than you would normally think (of course that isnt necessary, but it is a benefit of twinscroll)

twinscroll is not cheaper and easier to build. In fact it is MUCH more difficult -- if you take a look at our twinscroll manifold alongside our single scroll manifold, the twinscroll is obviously much more complex and time consuiming to fabricate.

We offer the GT3071R and GT3076R as twinscroll AND single scroll. Garrett offers them as single scroll only, we purchase the single scroll turbos but put twinscroll housings on them

Garrett simply never offered these turbos becuase there has been such low demand. Additionally, garrett engineers acknowledge how difficult it is to properly design and setup a twinscroll manifold/turbo system that no one wanted them until now! the single scroll 35R was so popular and worked so well, if you wanted more low end power you just got a 3076R. There was no competition for Garrett as Turbonetics didnt have the turbine and compressor wheel technology yet

yes, which is a big reason why the stock turbo is so responsive and works so well

The o2 housing is what we call our "downpipe" and what most call a downpipe we call our "midpipe". The intake is very easy, just a 45 degree 4" coupler, which we can provide. they are very inexpensive. beyond that its just a 4" tube with a filter.. we can provide that if need be

That is correct, our setup is designed to be a vent to atmosphere wastegate. Recirculating the gate will make the car quieter under full boost, but it does hurt power, particularly above 1 bar. Also we have done many recirculated setups WITH flex tubes and there is just such a big tendency for them to crack over time, the risks seem to outweigh the benefits...


we're doing a 4088R install on a 100% stock evo9 engine the 2nd week of august. we'll be sure to share the results. testing will be on stock cams initially and then upgrade the cams after the first testing/tuning is finished


i wont be able to get back to this thread until friday, thanks for the discussion

 

Full race is using the ATP twinscroll .78 AR T3 housing... so that's the proper picture. Trust me... I'm the one with the 3076 car in the pictures.