Update. Customer installed a new street ported engine and Xcessive LIM. Same turbo did a best of 460 whp and 427 lb/ft on the Dyno Dynamics. Peak boost of 20 PSI, falling to around 18.5 up top. That seems to be the limit of the little 55mm compressor that could! FWIW, that should translate to around 515 Dynojet.

The streetport shifted the power slightly to the right, but the area under the curve is fatter. Dyno printer is broken. I'll post up a pic of the screen when I have time.

 

Wow, that is amazing torque.....can I please haz?

 

This is the first time Ive seen this thread... Those are very impressive numbers because it's usable power. That car must drive amazing. 275+ whp at 4k is almost unheard of for an FD.

What non-custom turbos out there produce similar results?

 

What rotors is he running? stock FD? Some of the other SSM guys are running S5 NA rotors....

 

Hopefully they wont mind me posting. No tricks, just the standard FD rotors.

 

Dang, I was going to have fun with this.

 

My bad. I figured this thread and the build thread would get more attention but I dont think a lot of guys with bigger turbos........or motors want to acknowledge what can be accomplished with a nicely sorted out car.

 

I talked to him in huntsville several years ago at the time I am 99% sure he said hi comp rotors, stock ports, 19psi, small turbo, said he wanted the torque of stock ports.

 

It was a stock reman before I BUILT HIS ENGINE. Its definitely 9.0 rotors.

 

https://www.rx7club.com/3rd-generati...usings-976907/

That is the exact engine in his car. No tricks or secrets. The credit goes to the owner and tuner. Owner knew what he wanted to accomplish and how to accomplish it.

 

Double post, iPhone strikes again.

 

True. No tricks and stock rotors. My plans early on were to use NA rotors back when I was in Huntsville but I did not see a need for them at this time since I was getting good results with the 9.0 rotors. But the credit goes to the engine builder and the tuner. The owner just installed and drives.

So far the engine set up is doing well and the power and torque is working great for its purpose.

 

The "no tricks" motor did great at the Solo Nationals last week as did the pilot, Carter T.

Super Street Modified (SSM)
Pro Solo Finale 1st
Pro Solo Year-end Class Championship 1st
Solo National 1st

This was the first time in 7 years that the Texas 3-rotor did win the SSM Pro Solo Championship....not an easy victory, takes some luck/no car problems/super driving.

 

I have seen better numbers in a rew engine. My 13b-rew BP engine with a T04Z with E85, had 20 psi by 3000 rpm, and about 350nm at the same rpm, and 550nm at 5200 rpm. It dynoed 534rwhp at 20 psi

And had about 250 rwhp at 3200 rpm


But great numbers on such a small turbo

JT

 

^^Where've you been?!

 

Congrats!!! Also he is saying the 3 rotor did NOT win. Mark up another victory for a properly setup 2 rotor.

 

This thread helped inspire me to buy a little baby turbo for my FC!

 

What did you go with?

 

EFR 7670 T4 1.0AR

Its going on an HKS tubular manifold which has short tapered runners.

Same or smaller than my BNR Stage4 hybrid, but I think being able to run high boost in the low/midrange is going to give it a different shape power curve and it will have better transient response.

 

Those EFR turbos look to be a very interesting fit. Not sure about how good the internal WG is though. Let us know the results!

 

Sorry, I wasn't brave enough to test the EFR exhaust housing with the internal wastegate as I never won the battle against boost creep on my last turbo set up.

I was tempted to try the internal WG along with using an external WG, but I think I will just crank the boost up on this build with race gas instead of trying to run low boost and pump gas.

 

actual race gas? or e85? I've been tempted to move to e85 especially with the 9.7:1 rotors...

 

Unfortunately, I can't get E85 anywhere near where I live. I think the closest is around 300 miles away.

I am thinking put 5 gallons 116 leaded in at home before I fill up with 91 octane.

Tetraethyllead is nasty stuff, but it will raise the octane level up way out of proportion to the 1:3 mix thereby offering savings over something nicer like 110 unleaded.

I will keep an allen key in the car so I can dial back my pop-off valve in case I have to drive around on 91 octane.

I've done this before for a season.

 

I think you're going to really like that turbo! I've run it's cheaper cousin, the s256, for a season of solo2 now. I've got the 1.22 housing, old aspec long runner manifold, 3" exhaust, and an overly rich tune... Despite all that the turbo is still decent for solo, a properly setup EFR will be awesome.

 

What happened?!!?