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Please Help Me With My Very Lazy Gt2860-9's!

tommis85

By tommis85,
in Engines & Forced Induction

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tommis85
tommis85

Hey, yeh pretty much all sorted now. Haven't had a compression test done but she makes around the 400hp mark now which is good. Been ages since I've posted in this thread, can't remember if I updated

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sydking Veteran

sydking

Posted
Posted (edited)

Is your car ready yet?

Engine is back in today/ tomorrow. Then off for a tune.

Might get a early xmas presant if im luckey..

ow...And the little issue of a Full licence, November 29th.... But im not counting down :)

Edited by sydking
tommis85 Mentor

tommis85

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hmmm, I would say its the rears, around bends its all 4's

Sounds like you're making some decent torque there! Bit of a strange feeling when she breaks on all fours in corners hey...like driving on ice :D

  • 1 month later...
tommis85 Mentor

tommis85

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How did you go fixing you car ?

Ah mate I'm sorry to report that she's still the same as she was. But as soon as I get some consistent full weeks of work I'll be able to buy those remaining diff parts and get a re-tune. Decided to put an end to using savings for the car work....evil money pits lol

Edited by tommis85
  • 7 months later...
tommis85 Mentor

tommis85

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Did u check the compression at all? I know 26's get really tired after 100 000km's

If all else has failed i'd run a comp test

Hey, yeh pretty much all sorted now. Haven't had a compression test done but she makes around the 400hp mark now which is good. Been ages since I've posted in this thread, can't remember if I updated it or not, but the main problem was very soft actuators. Have since then added about 7mm or so of preload to force those gates to stay shut and she is quite a monster. No 1000hp GTR but goes like shower of shit - puts a smile on my dial every time haha

Yeh I'd imagine the compression to not be 160+ across the board but she still feels alright. Guess she'd be due for an overhaul and some more power when the money's there for it...

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discoPumpkin Community Regular

discoPumpkin

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400hp is heaps for street, im all about responsiveness and reliability, more hp then that only means there will be less goin on b4 it comes on and then BOOM snaps ya neck lol. I prefer linear power pull from the getgo, and atleast at that hp mark u dont need a rebuild/forgies!

Glad u got it all sorted out now, i know its a nightmare when ya troubleshooting, and the mechanics love it cuz they make more money guessin whats goin on while we go broke as a joke lol

tommis85 Mentor

tommis85

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400hp is heaps for street, im all about responsiveness and reliability, more hp then that only means there will be less goin on b4 it comes on and then BOOM snaps ya neck lol. I prefer linear power pull from the getgo, and atleast at that hp mark u dont need a rebuild/forgies!

Glad u got it all sorted out now, i know its a nightmare when ya troubleshooting, and the mechanics love it cuz they make more money guessin whats goin on while we go broke as a joke lol

Yeh it's definitely a lot of fun and even with it's ordinary tune it still is fairly responsive. I know what you mean with the lag and lack of responsiveness - that's why I got rid of my big singles. People must be used to some really laggy setups because every time I take people for a joy ride they comment on how soon and hard the turbos come on and how they pull to eternity haha! I reckon that these really are the best you can go for, for the 400hp mark...any less runs out of puff (with -7's being an exception I guess) and anything more will equal too much lag again and be a pain in day to day traffic. I've definitely learnt to set yourself a power goal and then select a turbo that will almost be maxed out by it....selecting turbos with ample headroom just equal massive lag especially if you don't really plan on maker more power in the near future =/ I'd rather just get the manifolds sorted and then just bolt on bigger and bigger turbos as you need them so that you always have a non-compromised setup.

Yes it's all sorted. What's sad is that the guys at Mercury didn't pick up on it either. They flogged the car all day long wondering why she had the flattest and most gradual boost curve. Came home, wound on some preload and voila, boost came on 1500 earlier with 1 bar by around 3.8-4k or so.

tommis85 Mentor

tommis85

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good to see it's sorted mate, how is the diff going ?

Hey Xklaba,

Yeh she goes alright but could obviously do with a nicer tune. Something to maybe give it some better economy for day to day driving would be awesome if that's even possible with these animals :P

As for the diff - I haven't put it in yet. I was unemployed for a while and didn't want to fork out for the remaining parts I needed so just left her in rear-wheel drive. Makes for a slippery car tho he he. I hope to get on to it soon tho

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