Turbo on RX-8

[Herblenny]

Here is a dyno map of rew seq at 19lbs

[Herblenny]

Ok...

I looked at the Speedforceracing turbo again... Now look at this..



Hmm.. Can anyone else see the problem with this manifold?? Personally, I think its JUNK

[Herblenny]

And this statement makes so much sense..

A cold air intake is part of the package.We understand that it is important to get as much cold air into that turbo as possible.We located the airfilter in the front of the car so it gets as much cold air as possible. Details like this is what makes the Speed Force Racing turbo system superior to anything else being offered for the fourth generation RX-8.

Sounds like they are building a Honda Civic..

Why you ask?? Well, first of all, intake restriction is more important than temperature. I rather have zero 90 degree bends than try to suck in air from the front of the car...

Second, this is why you have IC

Third, this kit comes with pre programed map. I'm sure its tuned for conservative not peak HP (which I'll be scared to run or turn the boost above 9lbs). And second, 6 x 550s, top fed injectors.. well, I just don't quite trust running them 100% or close to that with this set up..

[djmtsu]

The runners out of the manifold look like ass (and different sizes) and they slam straight into the main runner. Looks like an awful design to me, and I am no expert.

[Phoenix7]

Originally Posted by Herblenny

Ok...

I looked at the Speedforceracing turbo again... Now look at this..



Hmm.. Can anyone else see the problem with this manifold?? Personally, I think its JUNK

so, can we chuck it into the huge garbage bin along with the supercharger for the NA FC?

I've been following your thread for a while and it looks pointless. RE-Amemiya did a turbo 8 and sells it as a Greddy kit (if it's even on sale) and they put out lame numbers on it and it still looked slow. Why would you want to turbo an 8 anyways?

[85rx-7gsl-se]

I would almost go LSx swap before turbo'ing the stock 8 engine.

[Phoenix7]

Originally Posted by 85rx-7gsl-se

I would almost go LSx swap before turbo'ing the stock 8 engine.

me-->
you-------^

[85rx-7gsl-se]

Me.....Gives no shat what u think

[Phoenix7]

we both know that's a lie but I do agree on modding the NA renesis. It's just like modding an NA. Take it as far as you can without wasting too much money on useless crap.

Intake, exhaust, fuel, timing and reliability mods.

[85rx-7gsl-se]

Renesis in stock form in a FB or FC would be pretty sweet, but in a FE, just needs more pep. But still, even the 13BT> Renesis from a tuning standpoint.

[BBullet8]

well regardless of what you all think I will turbo my car with that turbo.

[Herblenny]

Originally Posted by djmtsu

The runners out of the manifold look like ass (and different sizes) and they slam straight into the main runner. Looks like an awful design to me, and I am no expert.

Exactly!!

Lets look at the design again..


Just HORRIBLE manifold.. 5 turns before it hits the turbo (and how long it is before turbo) and GOD, those runners from the engine... GEEZ!! Its like its designed by some idiot who knows NOTHING about turbo... At least Mazsport's manifold looks reasonable..

Then the after turbo.. Another 5 turn before midpipe..

By the way, to put things in perspective... I just looked at what used 2004 rx8 trade in is and its now sub 10K... So, this turbo is 70% of what used 04 might be

[Phoenix7]

Originally Posted by BBullet8

well regardless of what you all think I will turbo my car with that turbo.

it's your money.

[85rx-7gsl-se]

Seriously, does anyone know how much Brian Hinson's kit is going to cost for a LSx? Seems like it would be a better investment than 7k to boost a N/A motor and get only a little over 300hp

[Herblenny]

I've talked to Hinson and he was trying to get LSx into an 8. But I don't think he has done it yet...

Cost, it will be 7-12k, pending motor.

But the problem I might see is how the motor will sit (renesis sits very low) and the LSx ems will work with rx8s ems which controls abs, traction, etc..

But at the end, LSx 8 vs older Z06, you aren't getting much benefit... FD vs. older Z06, at least you have the weight advantage, but not with the 8.. I guess if you want to be cool with V8 under instead, I guess i could see that But I would rather just go out and buy an Z06 instead the headache of conversion... Few FD V8 owners have done that after their conversion... go out and buy the original that came with the LSx engine..