Jump to content
SAU Community

Recommended Posts

Hey everyone,

I did a search and couldnt really seem to find anything, thus why i started this thread.

I have a R34 Gtt with the following mods

Blitz front mount

Nismo/Blitz turbo back exhaust, (stock cat)

Gapped dot 7 plugs, with splitfire coilpacks

Eboost 2

Everything else is stock, so the other day i went to go get it tuned. Now to the problem i need help with. We were trying to tune the car and at around 4500 to 5500 rpm the car would drop off power by up to 40 hp. and the after 5500 it would kick back up.

So the curve was smooth upwards, slopped downwards b/w 4.5 and 5.5 rpm and den kick back up. But when we were tuning on ~10 pounds this would not happen, only if we boosted more than 40 duty. i ended up making 240 hp (~180 kws) to the wheels

Has anyone had this problem before? is it because i dont have a nistune and must fix something to get the smooth curve through the computer? my tuner thinks it might have something to do with the tcs (double throttle body) not letting air in??? i read up on some dyno figures on SAU and people were

running 210 kws at 13 psi with a nistune... so im assuming the power delivery was smooth??? as well that they are still running their stock throttle body!!! I think its the nistune...

Any suggestions??

Thanks for reading!!!

Michel

Link to comment
https://www.sau.com.au/forums/topic/393774-r34-gtt-losing-power-on-dyno/
Share on other sites

If so I'm guessing you're adjusting the CAS? then that is laughable and I wouldn't be going back to that workshop.

this

but as for what you're talking about, it's actually very common to have that 'step' in the power curve. Get a Nistune, and a decent tuner will be able to sort it out easy.

Depending on the mods you have planned, consider getting a Link G4 as well. Where are you located?

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • I'm normally copping my own abuse from neglecting my daily drivers. "Those suspension bushes will last a bit more", "Don't worry about the oil leak, just keep topping it up". The project cars I'm always doing things slowly on them as I'm wanting them to be done better, and neater, and nicer. Luckily I don't have to deal with 18 year old Matt's "Learning to wire" stuff in the project cars. And there's only one piece of wiring I'm displeased about in the Landcruiser, and it's about to be cut out... However, the box loads of parts that have been going through this place lately for the Landcruiser... Brake pads Brake Rotors Full handbrake overhaul Wheel Bearings Seals Swivel hubs Steering Boxes Half the suspension joints Shocks Air bags (Ones to go in the rear springs for towing) Water pump Timing kit Lower timing case Harmonic Balancer Radiator Lots of other little seals and shits Gas struts for the bonnet New power window switches And god knows what else I've forgotten... Ha ha ha I have my fingers crossed the pinion seals don't start leaking on the diffs, that the transfer case doesn't leak, and the gearbox input shaft doesn't leak, nor the rear main seal. As they're about the only seals I haven't replaced in the driveline! I'm seriously eyeing off buying new caliper rebuild kits front and rear brake calipers... I'll probably recheck all the valve clearances soon too, and hopefully, it should be all good and sweet to haul some long distance trips again!
    • Every time I pull my 3x gauges out of the console and see the crack-addict way that I did the wiring, and I just can't bring myself to tear it all apart and "make it nice", because it is currently working. In fact, the last time I was in there I probably made it worse.
    • The best part is when you own the car long enough that you look back and find your OWN ham fisted amateur shit!
    • The annoying part about neglect, is when you start to replace one thing, and find ten more broken things. Ham fisted monkey repairs you normally only find out about when trying to do something unrelated! Ha ha   Neglect you can kind of anticipate the huge costs to fix it all. Ham fistedness is normally a shock the first time your work on a new old car, as everything "looked" good before.
    • For DBA, check out their guide table here. https://dba.com.au/wp-content/uploads/2023/01/Direct_Replacement-Guide-2021.2.pdf   Additionally they have some other guides and info on how to make sure you choose the right pad.
×
×
  • Create New...