I would go with a stock EVO9 turbo or a TME. Remember you don’t only want a turbo that will stay in the sweet spot but on road race you want a turbo that will have zero lag between shifts.

I am not sure why you believe that an EVO turbo will be out of its range with 2.3 stroker? for example Subaru STI has 2.5 engine with a smaller turbo than the 16G. Stock turbo is just fine but anything over 7K rpm and you will be just pushing hot air. For road course stock turbo is the only way to go.

Good luck.

 

TME or 20g would be more ideal than a stock turbo ONLY on the stock motor. with the extra displacement, why not take advantage of the extra power you can get with comparable lag to the 20g on the stock motor?

if stock turbo is the only way to go on the road course, maybe you should talk with all the big boys who would laugh at putting a stock 16g on their race car. have you ever been in a stroked car much less driven one with a larger than stock turbo?

 

Az3ar,

Why do you think a stock turbo is the only way to go on a road course? I guarantee you, all of the fastest Evo road course times (e.g. Robi, Mueller) are on a bigger turbo like the 50 Trim, GT3076R or GT35R. These lap times are much faster than the stock turbo times due to the decent spool and far superior power output, both coming out of turns and down the straights. Remember, the FQ400 uses something like the GT3076R and it blows doors on a regular Evo.

 

because he knows everything about road racing, hes been doing it for ALMOST a year now!

 

Tuned at Buschur Racing on a mustang dyno

 

If the spool is very important to you, then I would definetely give 20g a try from Buschur. The other question is what kind of gas you will be running at the track, I think the power GT30R and GT35R will make at around 20psi shouldn't be very different. Those turbos are in my opinion made to be run at higher boost levels. At least, you will get some lag but then with high boost, once the turbo comes alive, it will pull hard. With 2.3, I think GT35R spool should be very good.

If you are going to run pump gas (no alcohol, no alcohol) then 20g would be a perfect turbo. It will have more top end for sure and spool would be like stock with 2.3
If you are going to run race gas, at least alcohol if not race, then GT35R sounds good.

 

Words can’t describe your lack of knowledge or information. You don’t read my post and then you come here with your low level of information. Perhaps you belong to another forum but he is disabled.

Back to our topic. I have said TME or EVO9 turbo is the way to go. Both of these turbos are stock EVO TURBOS. READ: both of them came of an EVO whether its evo 6 or 9.

TME, EVO9 and EVO8 turbo with 10.5 hot side has no lag between shifts. That is very critical around the track. On the track you want instance and crisp response. I would like to pass people on the corners and on the straight away not only on the straight away.

For example Smoggunner old setup with 2.0 and TME ran very fast times on the track with Shiv race guy (I cant remember the times).

Bottom line is that he will have plenty of power to smoke a lot of people. 350WHP and like 390WTQ and full boost by ~2600 RPM and on top all that a reliable car with a reliable turbo.

It’s his choice not mine not yours. You post your opinion I post mine the only difference between you and I that you are just another troller.

 

Let me explain my theory on efficency range:

The stock 16G will spool at ~1900RPM hit 20-22psi by ~3000RPM. If I run the car to ~7500RPM the 16G would be pushing high boost for very long periods. Eventually, the turbo will just start blowing tons of hot air and be completely off of the compressor map due to me requiring the turbo to hold such high boost for so long.

My air intake temps will be high and my car will be picking up tons on knock. Water and oil temps will be elevated also.

Sizing the right turbo for my application, which calls for 30-40 minute sessions at pretty much WOT the entire time, will require me to run a turbo which works better with the 2.3. I have spoken with Jarrod at BR and he recommended a 30 series (3076 or 3065). So I came on here to see if anyone is successfully running a similar setup. Also, to find out if anyone had a setup that they found was well suited for the track.

BTW - thanks for all the input thus far guys

I want to avoid having to run race gas at the track (no higher then 100oct) with a safe map and something that will have me running down Porches/z06 in the straights.

I have considered the 20G-9 but I don't have any compressor maps to take to my engine builder to have them evaluate how it will fit with the 2.3 flow characteristics.

 

Nrcooled, after reading that post, I really think your better off making this decision between you and your "tooner" of choice, you know what you want, and you know what kind of turbo will give you the results you are looking for, we are probably just confusing you haha. I just dont think there are many stroked + 3#R, 30##, turboed cars that are being tracked right now. It seems like you and I have similar goals, I want 450 or so whp on mild boost, maybe 24 or so on race gas, but on a turbo that will have great response and be very happy at that boost level. I think you will end up with a 30R of sorts!

Scorke

p.s. I would run race gas at the track no matter what, its cheap insurance, plus if you turn the wick up 2-3 psi over your pump gas settings, on a 30R it will still be far from pushing the turbo.

 

i guess no one likes the 50 trim idea..............

 

I think we do, but I think it might be slightly undersized, although I could be wrong, it seems like it makes some of the highest numbers on pumpgas 2.0's which leaves me to believe that on a bigger motor it might be pushed a little too far.

Scorek

 

its not cheap insurance. I use a tank every day that’s $7 X 14G = almost $100
I have 3 days track that mean i spend $300 on gas alone how can you call that cheap?

He should ran pump gas which is plenty on a safe nice tune. I can run my stock EVO now on the track all day with 93 octane.

Spend your money on the track not on your car the car is just a tool.

Plus dont run over 21 psi on the road course... 21 is plenty.

 

A customer left turbotrix last week with a 2.3 and a 50 trim making ~480/480 on pump and meth....

Thats pretty substantial if you ask me......for a street car.............

 

What did it make on straight pump? Az3ar I have ran 22-23 psi for about 7 hours of track time on the road course on my stocker and didnt have any trouble whatsoever. Race gas for me is 5 a gallon, so say 5 vs 2.80 or so per gallon, so a diff of 2.20 a gallon, thats not that big of a deal, plus I can call it cheap because id rather shell out the money for the octane than a blown motor.

Yes the car is just a tool, but if thats the case why dont you sell the evo, buy a civic and have track tires and money for gas and track time for life? Because you wan't a car that is FUN to track.

Scorke

 

I am not sure why you think the air temp will be very hot. AMS had many 2.3s with stock turbos and had no issues. A turbo kit is 4K and imagine saving that money in your pocket and putting it on suspension, tires and weight reduction.

I still believe that the stock TME, EVO9 BR20G will serve you better. Try it you won’t loose a thing. Just have a nice safe tune don’t worry about power soo much and get a larger IC if you are worried.