Rb26dett With 2xkkr480

[guricha]

Guys finally want to rebuild my engine and move back to twin again, this time top mount two turbos and planing to install two KKR480 ? looking for some wise opinions

Goal is less lag, small boost with max power up to 500hp

[Nee-san]

Guys finally want to rebuild my engine and move back to twin again, this time top mount two turbos and planing to install two KKR480 ? looking for some wise opinions

Goal is less lag, small boost with max power up to 500hp

Don't bother with high mounts.

Its a large amount of extra engineering you don't really need or want, unless of course you want high mounts for the sake of high mounts.

For below 500hp atw look at.

-7 x 2

-9 x 2

HKS GT-SS x 2

34N1 x 2

None of these will make 500 atw on pump fuel but you did say "max power upto 500"

For a proper 500 atw + possibility for alot more look at:

t517z x 2

HKS2530's

-5

HKS GT-RS

There are a large number of other options also but these are generally the more common ones.

[R31Nismoid]

500hp - so 330rwkw

GT-SS or Garrett -9

They are your only choice.

Putting 2x KKR480's on there is the dumbest idea I have heard in a while. 2x 480hp turbos for 500hp?

You'll probably make over 450rwkw. But it will be the most unresponsive 450rwkw+ you'd ever see as they are a terrible turbo for response in single form... Let alone having two of them. I'd say at LEAST 5,000rpm before you see anything useful.

[DVS JEZ]

Use the tried and tested turbo setups as above. 1.3l 3cyl running a 480 hp motor sounds like its gonna be laggy to me.

[Nee-san]

500hp - so 330rwkw

GT-SS or Garrett -9

They are your only choice.

Putting 2x KKR480's on there is the dumbest idea I have heard in a while. 2x 480hp turbos for 500hp?

You'll probably make over 450rwkw. But it will be the most unresponsive 450rwkw+ you'd ever see as they are a terrible turbo for response in single form... Let alone having two of them. I'd say at LEAST 5,000rpm before you see anything useful.

You mean 500hp at the crank ash ?

500hp is 375kw I don't think GT-SS or -9 will get you there but definitely to 330rwkw no problems.

I wasn't sure whether he meant at the wheels or engine either .. ?

[R31Nismoid]

NFI either, saying '500HP' would be at the motor in the normal world.

which is pretty much spot on the -9 marker, they will make a tad more, but on target with what was asked... that's if its now rwhp of course.

either way for 500HP or 500rwhp, 2x kkr480 is ridiculous.

i suspect he said two, given he already has one, and wants to do it on the cheap... which just ain't gonna happen.

[STATUS]

i would high mount those turbos.... cause they will need replacing often

-7's or -5's with -10's as the last option.

[Beer Baron]

yeah the GTSS will give you a comfortable 550hp at the engine. even a bit more if you want to push them hard. for 600hp+ you want 2530s.. after that.... well there is no shortage of proven twin turbo options for GTRs.

[SimonR32]

i would high mount those turbos.... cause they will need replacing often

LOL

[Nee-san]

NFI either, saying '500HP' would be at the motor in the normal world.

which is pretty much spot on the -9 marker, they will make a tad more, but on target with what was asked... that's if its now rwhp of course.

either way for 500HP or 500rwhp, 2x kkr480 is ridiculous.

i suspect he said two, given he already has one, and wants to do it on the cheap... which just ain't gonna happen.

Agree.

The only reason you would bother going highmounts is because you are using turbos so large you cannot mount them in the normal configuration Ala most of the early Japanese drag GT-R's.

There are ofcourse other engineering reasons for it in certain cases however this is not one of those times....

Edited November 1, 2010 by Nee-san

[bigmikespec]

There are ofcourse other engineering reasons for it in certain cases however this is not one of those times....

Engineering reason: chicks froth on twin high mounts!

[joeyjoejoejuniorshabadoo]

2 x KKR480's and less lag?

dude your'e talking about an RB26 not an LS1

[boostn0199]

As said by all the other a single kkr 480 with minimal lag doesnt exist let alone having two.

[kwickr33]

Shut up people. twin KKR480 is good. don't you want to see the sort of power it makes?

Edited November 1, 2010 by kwickr33

[joeyjoejoejuniorshabadoo]

not really....

i'd rather see his motor in one piece and him being happy with the money he spent

[guricha]

thanks guys for reply that is not my first time with masturbating with rb wanna proceed little bit more Just wanted to know, am on the way to rebuild my engine and had single turbo, now want to see twin, what you think how much those china shit will get at 1 or 1.2 bar ? :D

[Guilt-Toy]

they answered you above mate.

those 2 turbos will see no power and just lag up to 5000 - 5500rpm and they will make around 600hp at wheels.

maybe 2 x kkr 380's will be better for lag but it will still be laggy.

thanks guys for reply that is not my first time with masturbating with rb wanna proceed little bit more Just wanted to know, am on the way to rebuild my engine and had single turbo, now want to see twin, what you think how much those china shit will get at 1 or 1.2 bar ? :D

[R31Nismoid]

Thinking about it more, 2x 480's wouldn't be on till closer to 6000rpm i reckon at a stab.

And 380's would also be... terrible

I mean a -5 is "rated" at 350-380hp or whatever and they start to come good around 3800-4300rpm, the KKR's would be laggier again.

[lookingforboost]

On such a good motor and after spending money on a rebuild why put a cheap nasty turbo on it ..... Then put 2 on it ..... Do it once do it right

[l0WRB]

yeh i got a mate with 1jz and twin kkr330 and its bout 5000rpm before it comes alive