More Info on the Tripoint Turbo

[NC_MP3]

I talked to Tripoint again today, said their kit should be done very soon. They had some trouble using just a FPR to add fuel, so they said they are gonna use an additional injector with the kit. They are using an Aerodyne turbo. They are gonna run about 8 psi. They said once the kit is done it may take a month or 2 for them to have the kits ready to go.

 

[APEXistud]

I'm very interested in seeing how they plan on controlling the additional injector. If they use ERL's MF2 , they will need to stress that a professinal does the installation. But, this seems pretty interesting and I'm definately waiting for more info.

 

[JcsMP3]

Is it just me? Or does anyone else hate the fact that it has a 5th injector....

Jc

 

[chdesign]

Additional Injectors are good if setup right but on our intake system I would be iffy do to the chance of puddling fuel behind the butterflys. An injector on each runner would be optimal but I don't think we will see such a thing. I'm betting they will use an injector controller liek the EIC. Great controller for the price and very reliable. www.sdsefi.com check it out.

 

[Mp3P0]

alllmost done

well, tentatively, i should have my car back from Tripoint (the guinea pig). Craig said the results are looking really good & they'll get a final dyno done hopefully tomorrow. he's estimating 200hp, maybe even 210. as a result, i'm also getting the clutch swapped out because of slippage. anyhow, more to come...

 

[PortCityMP3]

200 to 210 at the wheels right?

 

[NC_MP3]

No, that will be @ the engine

 

[BigBlue]

What is considered to be a good gain of hp per psi increase? For some reason if it's 200 - 210 at the crank then it doesn't seem to be putting out much for 8 psi...tuning issues?

 

[chdesign]

A good turbo setup will pull 10 hp per psi i've seen some push 15

 

[Kooldino]

A good turbo setup will pull 10 hp per psi i've seen some push 15

That all depends on the size of the turbo, no?

 

[NC_MP3]

Not really, 8 psi is 8 psi, no matter how big the turbo is. Size mainly determines how much boost the turbo can make.

 

[chdesign]

8 psi is 8 PSI but 8 psi on a T25 is not going to produce as much power as 8 psi on a T3/T04E hybrid turbo due to the fact the hybrid will be spewing out cooler air than the T25 thus being more efficient. The denser the air the better and the bigger the turbo generally the cooler air it is going to put out at a given PSI.

 

[spoolinmp3]

CHDESIHGN is correct. Not all boost is created equal. Alot of things have to be taken into consideration. A bigger turbo..ie larger housing and compressor will have a huge difference over a smaller turbo. The small turbos do offer great spool up and responsivness but really run out of breath in the higher rpm's. Backpressure is a killer on tiny turbos that make them super inefficient. On the other hand a large turbo with good cfm flow capabilities will not be as responsive but will make gobs more in hp. A recent article in turbo magazine illustrates this. A turbo galant that was running a 16g upgraded to a larger 16g and gained 25 more hp at the same boost. Size does matter. The trick is to use the reasonably largest turbo for your application.

 

[NC_MP3]

Ahh, thanks for the info

 

[spoolinmp3]

No problem
We are all here trying to learn