record on stock evo motor

4GTuner

Help Support 4GTuner:

that talon is mad! 10.94 on a stock 2G!

GT3076R, dsmlink, fic 950's, bc272 cams, evo3 manifold, 3" exhaust, tail wastegate, TRE tranny, PTT clutch, ebay FMIC, 26x9.5x15 hoosie qtp's.......... nothing out of the ordinary.
 
bazeng said:
frank-e,
have you run the car on the track lately?

what was your 11.7 run with?

Hey Baz, the 11.7 run was in the same car 'TOYGSR' with the same untouched engine back in December last year. It wasnt running as much power at the track back then as what it pulled on the dyno last weekend.
 
^^^^ Yeah you can clearly hear that he put the clutch in and rpm flies through the roof.... along with one of his his rods lol :D
 
Sorry to resurrect this old thread, but I may get told to do a search if I start a new one.

I now have my 95 GSR running. Current mods:
- Stock EVO III motor purchased from 2much (Thanks :))
- 264 in/272 ex HKS cams
- old school 'Frankenstein 3' turbo (don't ask, I had it built when I was 17 years old and never got to fitting it). Needless to say it's a larg-ish turbo
- Evo 8 MR i/c
- ID1000 injectors
- ECM Link
- full 3 inch exhaust
- custom engine bay piping
- Walbro FP
- pod filter
- HKS EVC 6 EBC

In other words all the supporting mods needed to run some half decent power.

Now this turbo has some boost creep issues and won't run below 24 psi. Currently the car is being tuned to run on 98 octane fuel (It's a daily driver and there's no E85 pumps around me).

The car is at Springy Motors. On 24psi it's running 220kw atw (AFAIK Springy motors dyno tends to read lower than others). There is some concern that I may be pushing the motor beyond it's limits. I don't know a hell lot about the history of the motor other than compression and other vitals look healthy. Any guidance out there somebody can provide on whether i should be concerned? I do have the ability to fill my car with 100 octane fuel through Caltex. I could use this as an option for a small safety barrier.

The dilemma is 'a) keep th car as is (and gain an understanding of the possibility of major engine failure)' or 'b') remove the turbo and get the wastegate ported to cut boost by 2-4 psi'.

Any guidance/info would be apreciated.

edit: 7000 rpm limit set
 
That setup looks quite capable of running that much power and boost, good fuelling setup and a good sized intercooler. At 24psi that turbo will most likely be right in its efficiency range, probably not much point running more boost with out E85 or race fuel.
Mind you need to know that everything is running and maintained 100% and the tune nice and safe and rich. Eg like doing boost leak test's to make sure the system is leak free so not overworking the turbo and blowing hot air.
(All this said i had a very similar setup running the same boost on a vr4 6 bolt motor thought to be stronger with the bigger rods and lower compression, but pistons more likley to crack ring lands or shatter than 7 bolt motors. It was given new fluids a lot and tune was safe and it went bang, so things do go wrong haha)
 
(all this said i had a very similar setup running the same boost, it was given new fluids a lot and tune was safe and it went bang, so things do go wrong haha)

Thanks for the info. May I ask why you think the motor went bang? Do you think it was because of running excess boost or running too much power for the stock motor?

Yes 24psi for this turbo is well in its efficiency range.
 
Thanks for the info. May I ask why you think the motor went bang? Do you think it was because of running excess boost or running too much power for the stock motor?

Yes 24psi for this turbo is well in its efficiency range.
I haven’t had a chance to pull it down, as other priorities have taken over since it popped the motor. It should have been well within its power limits, so something stuffed up.
 
you never know unless you give it a go. If you can afford to blow an engine I say go for it! always good to aim for something.
 
at 24 psi...i would be making sure you have some decent head studs..... with out these you may encounter issues with head gaskets.
 

Latest posts

Back
Top