Jump to content
SAU Community

Recommended Posts

As i was discussing with craig, If you've got work to do on your car and dont really have time to transport your car to a mechanic, or want it done over a weekend, or dont know what the fuuk your doing, let me know the quote and ill beat it by a considerable amount and help you out.

Cubes, i agree with the gt3540 being a '3rd gear' turbo, especially the typhoon spec 1.06 rear and also the .82 rear. Very impressive once on boost tho. I have done a little reasearch on a gcg gt3040 aswell, they are much the same to some extent.

Edited by Ryanrb25

i got a gt 30/40 highmount with a .82 and external gate on my car n they are a awesome turbo, when boost hits it hits HARD!!!

1st 2nd n 3rd gear, they arnt that laggy....

then again thats on a forged engine, i guess it'll be a bit laggy on a standard engine, but if u wanted it more reponsive put a rb25 or .63 exhaust housing on it, thats wat i had on it when it was a stock engine b4 it was blown up on the dyno....

Edited by ovrtym33
i got a gt 30/40 highmount with a .82 and external gate on my car n they are a awesome turbo, when boost hits it hits HARD!!!

1st 2nd n 3rd gear, they arnt that laggy....

then again thats on a forged engine, i guess it'll be a bit laggy on a standard engine, but if u wanted it more reponsive put a rb25 or .63 exhaust housing on it, thats wat i had on it when it was a stock engine b4 it was blown up on the dyno....

Probably a few other reasons why it's not as laggy but how does a forged engine make the car more responsive than a standard engine?

Lighter internals? Rods/pistons etc?

if that was the case, then 1/2 psi extra boost on a car with STD internals would take care of that.

Peeps generally do a rebuild with forged pistons and aftermarket rods to be able to cope with more HP, RPM & strength.........not for better response.

I am not a fan of the 3040 on the twin cam heads they are a bastardised turbo. :)

As you say boost hits hard that = lag.

I'd prefer a much more linear turbo that comes on earlier so it doesn't feel like it hits so hard due to lag.

Guest
This topic is now closed to further replies.



  • Similar Content

  • Latest Posts

    • Depending on how long the car sat it is very possible for injectors to be stuck open or closed, I'd get them cleaned and flow tested. Other than that, obviously when the loom changes and the car doesn't start any more....the loom is suspect so some tracing / comparing may be required
    • Harness is for a s1 Rb25det, and it is engine and lower harness.  the old harness had broken off plugs and was in very rough condition/exposed wires and splices etc. it is not able to be put back on the car, I could visually inspect to see if they had rewired any pins on the ecu plug. The fuel pump definitly isn’t turning off it’s an external pump and very loud you can hear it. Will look at the other harness tonight, am also going to pull the fuel rail and watch the injectors spray, will update here with what I find. Pretty sure at this point it has to be something to do with injectors because car will fire up on starting fluid and cas is clicking the Injectors. Fuel pressure is steady 43psi 
    • Check the injectors flow evenly, and are actually flowing what you and the ECU think they should be flowing. If it's starting up on starter fluid, you have a fuel issue. Is it possible under cranking your fuel pump is turning off?   The harness you replaced, is that the whole engine harness? Do yourself a test, and drop the old harness on and plug it into the Z32 ECU. It's possible they've wired things different. From memory S1 to S2 is different in RB25 and you may have a wrong loom
    • I haven’t pulled the injectors to watch them spray yet but they are clicking from the cas and all of the spark plugs are wet with fuel. I’ve thought the cylinders were being flooded from the beginning and was hoping fuel pressure would fix it. Tonight I am going to pull the rail and watch the injectors spray. Don’t know how to test/diagnose if the plugs are firing in correct sequence but that should be a timing thing and as far as timing goes my car still has the half moon for the cas can only install it 1 way. And my mechanical timing is 100% correct I posted photos above. Confirmed with the balancer on and off. 
×
×
  • Create New...