Rb26dett Gt2860r-5 Help

[johnnyt]

hey guys im building a rb26dett

so far it has

forged pistons

h beam rods

acl race bearings

recon head

cometic gasket

n1 oil pump

extended drive

stock turbs and stock dumps to kakimoto exhaust

i am going to order some GT2860R-5 to fit to the new engine before it goes in as i dont like the idea of doing it while the engine is in the car.and ive read that the standard turbs can be engine destroying mongrels.

where is the cheapest place to get the GT2860R-5?

and also what boost would you suggest i run considering i wont be able to afford cams pfc and injecters for about 6 months or so?

any other advise would be great

thanks johnny

[700HP-GTR33]

hey guys im building a rb26dett

so far it has

forged pistons

h beam rods

acl race bearings

recon head

cometic gasket

n1 oil pump

extended drive

stock turbs and stock dumps to kakimoto exhaust

i am going to order some GT2860R-5 to fit to the new engine before it goes in as i dont like the idea of doing it while the engine is in the car.and ive read that the standard turbs can be engine destroying mongrels.

where is the cheapest place to get the GT2860R-5?

and also what boost would you suggest i run considering i wont be able to afford cams pfc and injecters for about 6 months or so?

any other advise would be great

thanks johnny

Don't run more than 1Bar boost before you get your turbo's.

Your injectors and pump will have problems when you slap these turbo's on.

So if you can...get your fuel pump,regulator and injectors put on at the same time.

You will need to tune the engine only once then.

If you are looking for -5 Turbo's...there are lots of sponsors who sell these on this Forum.

Cheers.

[tacker]

made around 450 AWHP with stock cams and bottom end and 2860-5 turbos pfc 600cc injectors etc etc. did adjust the cams 2 degrees advance on the inlet and 4 retard on exhaust.

And get yourself a PFC and injectors as no point with turbos if these are not going in with them.

[johnnyt]

made around 450 AWHP with stock cams and bottom end and 2860-5 turbos pfc 600cc injectors etc etc. did adjust the cams 2 degrees advance on the inlet and 4 retard on exhaust.

And get yourself a PFC and injectors as no point with turbos if these are not going in with them.

i will be getting a pfc and injectors but not for a few months as my budget will be blown as i have just put all the money into a forged bottom end and turbos,its much easier for me to fit the turbos now while the engine is out of the car,so basicly you guys are saying i wont be able to drive the car with the bigger turbos on until i get a pfc,pump and injectors yeah? even at a low bost of say 7psi?

johnny

[Risking]

You can drive the car around without any problems at all. You dont need to get the injectors etc just because you have the 2860's.

The 2860's will need the support to make any sort of decent power but run your usual boost and live happily till you can afford the supports.

Give the thing time to settle in if nothing else anyways.

[johnnyt]

You can drive the car around without any problems at all. You dont need to get the injectors etc just because you have the 2860's.

The 2860's will need the support to make any sort of decent power but run your usual boost and live happily till you can afford the supports.

Give the thing time to settle in if nothing else anyways.

sweet thats what i was hoping for :sorcerer:

before i screw any boost into these turbs they will definetly have the support mods needed to make the power.

johnny

[Risking]

everything will be fine then.

just run your usual 1 bar or .8 what ever and leave it be.

[tacker]

Hmm not so sure about that but i may well be talking out my cannon here but flow of .8 bar from stock turbos is quite a bit less than .8 bar from the 2860-5.

Although pressure is the same you will be pumping lots more volume of air, my old car just made over 400awhp at stock boost with the 2860-5 turbos. If you baby the car around for the next how ever long you could get away with it if your lucky, i dont think i could resist a little squirt here and there though and there would be the problem.

Please check with others as i may well be talking shite as i seem to quite often.

[johnnyt]

Hmm not so sure about that but i may well be talking out my cannon here but flow of .8 bar from stock turbos is quite a bit less than .8 bar from the 2860-5.

Although pressure is the same you will be pumping lots more volume of air, my old car just made over 400awhp at stock boost with the 2860-5 turbos. If you baby the car around for the next how ever long you could get away with it if your lucky, i dont think i could resist a little squirt here and there though and there would be the problem.

Please check with others as i may well be talking shite as i seem to quite often.

400hp atw with stock boost! woah wasnt expecting them to make that

i would have thought 400atw would need around 18-19psi and all supporting mods

johnny

[tacker]

yep but that is with a PFC, 600 cc injectors, big fuel system, altered cam timing, etc and a bloody good tune.

From my limited knowledge we are talking about a lot more flow at .8 bar from the 2860-5 than stock.

Just be careful and check your AFR and knock

[noone]

U would be planning to check it out on the dyno to make sure safe Air Fuel Ratios an all that wouldn't u

Would beg borrow or steal to get the uprated injectors and pump at least!

[Risking]

tacker got a dyno sheet to back that up??

[tacker]

yep

[Risking]

Post it up??

What dyno??

[tacker]

been posted for some time.

Johnnyt be careful if you plan to run the car without having it tuned when running larger turbos

Good luck with it make a big difference when you get all the mods

[700HP-GTR33]

been posted for some time.

Johnnyt be careful if you plan to run the car without having it tuned when running larger turbos

Good luck with it make a big difference when you get all the mods

This is why I stated you do the fuel/ turbo/ tune/with(PFC) at the same time.,

Or you may be looking at engine problems.

[R31Nismoid]

been posted for some time.

ye, but 330rwkw @ 14psi is a bit hard to take dont you think?

Hence people are asking the question etc

http://www.skylinesaustralia.com/forums/in...t&p=2947347

[Risking]

Thats a rather interesting curve too.

What's it make in shootout on a Dyno D??

[tacker]

yer i reckon so as well hence the reason i said in this thread over 400HP

But fear not it is going back on the dyno on saturday as boost controller has arrived at last so what would you like to see as i dont know much about dynos.

All the tunner from subzero did was lots of fiddling then pushed a few buttons on the dyno controler and reved the engine up to 8100 in 4th gear fiddled the ECU (or his laptop infact) a bit more did the 4th gear thing a few more times, then gave me the sheet.

How the hell do you calibrate a dyno or know if its calibrated?

[STATUS]

ye, but 330rwkw @ 14psi is a bit hard to take dont you think?

Hence people are asking the question etc

http://www.skylinesaustralia.com/forums/in...t&p=2947347

hmmm yeah, i like the way all the suspect ones have the correction figures missing off the bottom.... even though there are still a few dodge one with tampered IT figures.