Gtr Detonating

[The Bogan]

Probably needs more fuel mate, needs a tune.

[Dearlove]

hi all

so when i hit bout 17-18 psi it starts pinging like a bitch!!! why??

[Dearlove]

but thats the bit i dont get?? it pours fuel out the back like it's got a free fuel card...

[V-Spec]

but thats the bit i dont get?? it pours fuel out the back like it's got a free fuel card...

just because its running rich doesnt mean its got enough fuel for the air you provide the engine at those boost levels

at 18psi on a gtr with a stock fuel system, something clearly over its capasity where it be injectors or fuel pump

put the boost to 15psi or somewhere it doesnt ping and take it to a dyno place to see whats going on

[Dearlove]

just because its running rich doesnt mean its got enough fuel for the air you provide the engine at those boost levels

at 18psi on a gtr with a stock fuel system, something clearly over its capasity where it be injectors or fuel pump

put the boost to 15psi or somewhere it doesnt ping and take it to a dyno place to see whats going on

ahhh, ok cool, yeah i got a shitty boost controller, so it tends to spike a bit, kinda gotta watch it myself

[Dearlove]

oh btw what max's out first injectors or pump, injectors been replaced b4 i got the car, not sure if bigger tho, but you'd think if they were in their right mind they would have yeah?? unless cash was an issue...

[R31Nismoid]

18psi on stock turbos?

You know if they let go, your more than likely to have the motor leg go with it dont you?

[Dearlove]

yeah coz of the dust ay?? its not running 18, just every now and than it spikes, i run it at 10 psi now days just to be sure, that way it only spikes to 15 pound, haha

yeah need to take it to a dyno or hoist to see wtf is going on

oh and is there any way a boost controller could be making to turbo's lag??? like not hitting 15 psi till 4.5-5k or so?? thats pretty late for stock turbo's isnt it?

yes i know, my car is doing some f**ked up shit!!

[Dearlove]

haha, yeah i know, it prob doesnt need it.

but its all in with a fuel controller and everything (same unit)

[-Stokesy-]

If your running at 10psi why do you have a boost controller? Mine runs at about 12 psi with just the restrictor removed.

[Guilt-Toy]

start saving your money. If you continue to disrespect your rb26 like this your going to need a rebuild.

[Dearlove]

start saving your money. If you continue to disrespect your rb26 like this your going to need a rebuild.

says the bloke who's pic is of him doing a burnout... haha

i dont run the thing on 18psi, im just saying there is something wrong with my boost controller and its starting to let it spike, thats why i've turned it back to 10 pound so if it does happen to spike, it's still safe.

going to look at it over chrissy break and watch my boost gage like a hawk in between.

[TiTAN]

the difference between his and yours, is that his is already a forged motor and it has been tuned to suit all the modifications made to it.

[jay1]

needs more fuel for sure

[Dearlove]

the difference between his and yours, is that his is already a forged motor and it has been tuned to suit all the modifications made to it.

yeah thats why im only running 10 pound atm.

so im looking for nismo fuel pump and till then just gonna drive it around on low boost, then look at getting bigger turbo's!! and see if i can blow my engine...

and i've seen plenty of 'built' engines blow from doing burnouts. but that ussually the drivers, to me thats showing real disrespect to your car... but each to there own, im sure there worse things, like running your car lean, haha

Edited December 17, 2008 by Dearlove