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Rb26dett Gt2860r-5 Help

johnnyt

By johnnyt,
in Forced Induction Performance

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Risking Grand Master

Risking

Posted
Posted

Im sceptical just as URAS is untill I can see correction figures.

Get them to run it up after the tune in shootout mode and make sure there are figures at the bottom like this one has.

GTRPowerRun1.jpg

Fairly easy to define a legit graph to a dodgy one then.

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tacker Mentor

tacker

Posted
Posted (edited)

tell me what i need to ask for when he does it again on saturday, the HP figure means little to me but a safe AFR does.

Next time i will leave the arabic writting on the sheet so you can read that too :-)

yer i reckon i can ask him to do that thanks for the info

Edited by tacker
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enzan Explorer

enzan

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And another thing is with these turbos and no supporting mods you can expect bad compressor surge, as I've just found out! My GTR's barely drivable around town! So it looks like it's back into the garage for mine until I can afford the required extra's. :D

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enzan Explorer

enzan

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Well let me rephrase that.. just forewarning you... it's a possibility that you could end up with an undriveable car due to shuffle because of no supporting mods.

I have bugger all mods at this stage other than the usuals i.e exhaust, pods etc. No after market engine management (mines modified). One of my original turbo's shit itself and I plan to do quite a few mods later on and so wanted turbo's that will be up for it later on down the track hence the GT2860-5's (Never pulling them off again!! What a shit of a job!!!) And now have bad shuffle at cruise and low speeds.

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700HP-GTR33 Mentor

700HP-GTR33

Posted
Posted
Well let me rephrase that.. just forewarning you... it's a possibility that you could end up with an undriveable car due to shuffle because of no supporting mods.

I have bugger all mods at this stage other than the usuals i.e exhaust, pods etc. No after market engine management (mines modified). One of my original turbo's shit itself and I plan to do quite a few mods later on and so wanted turbo's that will be up for it later on down the track hence the GT2860-5's (Never pulling them off again!! What a shit of a job!!!) And now have bad shuffle at cruise and low speeds.

Turbo's ,especially 2530(-5)or GTRS(-10) for a gtr need some mods.

1-Exhaust should be at least 3" right through...including CAT.(Air)

2-Fuel pump replaced to NISMO with regulator.(Fuel)

3-A tune is required with an after-market ECU.

You don't expect more power when the Engine is in a mild state of tune...do you?

How do you expect things work...get a Turbo('s) that is larger and assume the car will be better...wrong?

You made the right choice with the 2530's...you just have not been listening to what every-one is saying.

Get yourself an ECU and get a tune

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johnnyt Rising Star

johnnyt

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Posted
Turbo's ,especially 2530(-5)or GTRS(-10) for a gtr need some mods.

1-Exhaust should be at least 3" right through...including CAT.(Air)

2-Fuel pump replaced to NISMO with regulator.(Fuel)

3-A tune is required with an after-market ECU.

You don't expect more power when the Engine is in a mild state of tune...do you?

How do you expect things work...get a Turbo('s) that is larger and assume the car will be better...wrong?

You made the right choice with the 2530's...you just have not been listening to what every-one is saying.

Get yourself an ECU and get a tune

hmmm i think i will wait till i get a powerfc and a pump and get the car tuned for low boost before i drive it then.

johnny

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STATUS Grand Master

STATUS

Posted
Posted
Well let me rephrase that.. just forewarning you... it's a possibility that you could end up with an undriveable car due to shuffle because of no supporting mods.

I have bugger all mods at this stage other than the usuals i.e exhaust, pods etc. No after market engine management (mines modified). One of my original turbo's shit itself and I plan to do quite a few mods later on and so wanted turbo's that will be up for it later on down the track hence the GT2860-5's (Never pulling them off again!! What a shit of a job!!!) And now have bad shuffle at cruise and low speeds.

hmmm you have other issues, even though im no fan of 2860's i have fitted them to stockers b4 with no hassles in fact i just fitted larger T517Z's to my missus's RB26 powered silvia and it drives fine (no boost etc) of course it needs a tune but it would be safe as houses to go to shops and back....even as a daily commuter it would suffice until dyno time should present itself.. road tuning ruled out on this one....its a bit anti-social.

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enzan Explorer

enzan

Posted
Posted
Turbo's ,especially 2530(-5)or GTRS(-10) for a gtr need some mods.

1-Exhaust should be at least 3" right through...including CAT.(Air)

2-Fuel pump replaced to NISMO with regulator.(Fuel)

3-A tune is required with an after-market ECU.

You don't expect more power when the Engine is in a mild state of tune...do you?

How do you expect things work...get a Turbo('s) that is larger and assume the car will be better...wrong?

You made the right choice with the 2530's...you just have not been listening to what every-one is saying.

Get yourself an ECU and get a tune

Yes i know and if you read my post properly it explains my reasons for putting these turbo's on without any supporting mods. JohnnyT originaly asked if his car would be ok with -5 turbo's and no supporting mods. And I'm simply saying that yes it will but he can't expect it to run properly..... like mine.

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enzan Explorer

enzan

Posted
Posted
hmmm you have other issues, even though im no fan of 2860's i have fitted them to stockers b4 with no hassles in fact i just fitted larger T517Z's to my missus's RB26 powered silvia and it drives fine (no boost etc) of course it needs a tune but it would be safe as houses to go to shops and back....even as a daily commuter it would suffice until dyno time should present itself.. road tuning ruled out on this one....its a bit anti-social.

Hmm, possibly do have other issues, I didn't change anything other than a small amount of metal off the exhaust manifolds??

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