Turbo'd GQ TB42 EFI Help!!

[Mick Patroln]

Mick, you can't do anything with the dizzy. All timing advance or retard is controlled by the ECU.
You won't be able to adjust fuel or timing under boost until you get an engine management system. Either a Nistune daughterboard or a piggyback system, etc.

ok thanks john are you aware of any other piggyback systems available for this motor i've looked into nistune and have heard it would fix the pinging but decrease performance.

[jff45]

ok thanks john are you aware of any other piggyback systems available for this motor i've looked into nistune and have heard it would fix the pinging but decrease performance.

Mick, why not start by getting the intake air temps down by fitting a nice big intercooler. Have a look at my TB45E turbo install thread where I posted a pic of my Ebay $159 IC.
Then get some more petrol into it either with bigger injectors (I don't know what's available for the TB42E) or simply getting the fuel pressure up.

I have a friend in Panama who has a TB45E turbo and he runs the stock ECU to 6 psi. He has a top mounted IC and a Turbosmart rising rate FPR.

I'm currently running an Xede piggyback on my N/A TB45E and I'll be using that for my turbo as well. I picked it up some time ago on Ebay for $100.
If it doesn't do the job, I'll be going with a Megasquirt 3.
I've heard of others who have run secondhand Haltechs they picked up on Gumtree.

Anyway, that's the 1st time I've heard of a Nistune decreasing performance. Someone might need to change tuners..

[NissanGQ4.2]

ok thanks john are you aware of any other piggyback systems available for this motor i've looked into nistune and have heard it would fix the pinging but decrease performance.

I think an ex members Scotty used the wolf ECU when he turboed his 4.2efi, but also recall he ended up ripping his gas system out and going dedicated petrol

http://www.wolfmotorsport.com.au/plu...rol/nis91.html

If you have a spare year, you can read his members ride thread here: http://www.nissanpatrol.com.au/forum...Grey-and-Ugly/

[Mick Patroln]

Mick, why not start by getting the intake air temps down by fitting a nice big intercooler. Have a look at my TB45E turbo install thread where I posted a pic of my Ebay $159 IC.
Then get some more petrol into it either with bigger injectors (I don't know what's available for the TB42E) or simply getting the fuel pressure up.

I have a friend in Panama who has a TB45E turbo and he runs the stock ECU to 6 psi. He has a top mounted IC and a Turbosmart rising rate FPR.

I'm currently running an Xede piggyback on my N/A TB45E and I'll be using that for my turbo as well. I picked it up some time ago on Ebay for $100.
If it doesn't do the job, I'll be going with a Megasquirt 3.
I've heard of others who have run secondhand Haltechs they picked up on Gumtree.

Anyway, that's the 1st time I've heard of a Nistune decreasing performance. Someone might need to change tuners..

yeh nice rig you got there mate just checked it out will look into completing and fitting an intercooler then and see if that helps.A mechanic who installs nistune told me when I spoke with him last week that it would fix the pinging by levelling out the fuel and air mixtures and that the performance would drop as timing would be taken out of it I ask how it would go puting more boost in to increase performance and he said nistune wouldnt be capable of anymore he suggested halltech for performance increase. all getting to hard haha should just whack a ls2 in it lol.

[billyj]

mine doesnt ping at all. had it dyno tuned with a nistune board, made 100kw at the rears on 33"s with major intake restriction from 3000rpm up and a restrictive 2.5" exhaust, even though it doesnt sound that high the differnce from stock is massive, tons more torque and it makes the power much earlier in the rev range

[jff45]

I'm also planning to keep my 2.5" exhaust with my turbo install..

[billyj]

2.5 will work but 3" would be alot better, at the very least fit a high flow cat and straight through muffler

[jff45]

It's the Redback system I installed when I fitted the pacemaker extractors and it's only done 5k kms so I'm not about to throw it away.
I'm confident it will be sufficient for my needs.

[Mick Patroln]

mine doesnt ping at all. had it dyno tuned with a nistune board, made 100kw at the rears on 33"s with major intake restriction from 3000rpm up and a restrictive 2.5" exhaust, even though it doesnt sound that high the differnce from stock is massive, tons more torque and it makes the power much earlier in the rev range

hi billy nice mate can you tell me what you made in horse power at the tyres and what boost you running?

[nissannewby]

100kw is 134hp