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Just A Few Pics Of My Gt2860r-707160-5 Turbo Swap

DAS KAMU

By DAS KAMU,
in Engines & Forced Induction

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R31Nismoid Grand Master

R31Nismoid

Posted
Posted

Have you done back to backs to prove they are a restriction?

(and not some flow bench rubbish)

Reason i say this is because if you can make over 400rwkw on them (stock) they cant be too bad :(

bigmikespec Veteran

bigmikespec

Posted
Posted
Have you done back to backs to prove they are a restriction?

(and not some flow bench rubbish)

Reason i say this is because if you can make over 400rwkw on them (stock) they cant be too bad :thumbsup:

You should start a "What parts you do not need for 400kW" thread. I know what you are getting at but this bloke has spent some money on his car you do not need to bring him down a peg by saying what he does not need.

Swiper the Fox Grand Master

Swiper the Fox

Posted
Posted
You should start a "What parts you do not need for 400kW" thread. I know what you are getting at but this bloke has spent some money on his car you do not need to bring him down a peg by saying what he does not need.

I get it all the time with engine builds...they want this part and that part in there...and when i find out they are chasing 350kw i try and tell them to spend their money elsewhere. But at the end of the day you cannot convince them so i just let them go and spend spend spend.

Aftermarket rods in a GTR is a perfect example as most of the chinese offerings would in my opinion be on par if not worse than prepped stockers. GTR stock rods simply don't bend or break because they are weak...its always something else that makes them go.

sorry to be off topic.

R31Nismoid Grand Master

R31Nismoid

Posted
Posted
You should start a "What parts you do not need for 400kW" thread. I know what you are getting at but this bloke has spent some money on his car you do not need to bring him down a peg by saying what he does not need.

Well he claimed they were a restriction, and I think that is wrong.

So quite rightfully it should be questioned as to how one actually knows they are (when its been pretty well proven… they are not)

It was more about incorrect information than anything else.

Its nice to have fancy parts if you have lots of money :)

Its like having a $500 car and a $150,000 car. They will still get you to the same place @ the same time… its just one is more stylish than another and good for the person that can do it in a 150k car, they worked hard for it no doubt

shy_s6 Veteran

shy_s6

Posted
Posted
Looks the goods mate :) Im very interested to see what numbers you pull! I had a set of these put on my car 2 weeks ago and made 258rwkw on 14 psi and 316rwkw on 18psi on a Mainline dyno, but i used match ported standard manifolds and HKS split dumps and D-Jectro. Good luck and i hope all goes well :(

i would have hoped for more power then that from the -5's? i have 280rwkw @ 15psi on r34 turbos.. but my engine is forged with cams, what turbos would ppl suggest to make 340-360rwkw

and stock manifolds are fine for up to that power then?

bigmikespec Veteran

bigmikespec

Posted
Posted
Well he claimed they were a restriction, and I think that is wrong.

So quite rightfully it should be questioned as to how one actually knows they are (when its been pretty well proven… they are not)

It was more about incorrect information than anything else.

Its nice to have fancy parts if you have lots of money :)

Its like having a $500 car and a $150,000 car. They will still get you to the same place @ the same time… its just one is more stylish than another and good for the person that can do it in a 150k car, they worked hard for it no doubt

Agreed, except the the part about getting the same place at the same time in a $500 and $150,000 car, haha.

I would go for ported and coated standard manifolds if it were me. The only thing that would put me off would be the age of the manifolds themselves and their resistance to cracking, everything has a fatigue life!

Mike

PHA71L Community Regular

PHA71L

Posted
Posted

i thought that was a bit low on low boost to? maybe because its running rich? same tune as the 316kw run?

my turbos should be here tomorrow will be a couple of weeks befor i get them on tho :)

DAS KAMU Veteran

DAS KAMU

Posted
  • Author
Posted

i just changed the manifolds because i could afford to do it

no other reason but to my untrained eye they look like the flow path is better

please dont burn me down for using them

just like being gay = your choice

lol

R31Nismoid Grand Master

R31Nismoid

Posted
Posted

Not burning you for using em, it was much more interesting to see the gasket in your pics with the difference size to the turbine housing size (they were markedly different), so i can see why when i was told the turbine housing was the problem in the gtr setup... how its true and stuff.

DSTROY Grand Master

DSTROY

Posted
Posted
i thought that was a bit low on low boost to? maybe because its running rich? same tune as the 316kw run?

Car was first tuned at 14psi, then tuned again the next morning with a boost controller installed at 18psi, the first tune was not fully set up till the next day and i did not get a dyno printout for the low boost after its full tune.

DAS KAMU Veteran

DAS KAMU

Posted
  • Author
Posted
good work on the pictures, it is a fun job i have done turbos before and about to put the -5 turbos on my gtr, along with a new gearbox :) lucky i just cleared my hoist for some room.

you have a hoist!

i want to do that when i buy my next house that has a yard

doo doo Proficient

doo doo

Posted
Posted

Wow, that was all really interesting to read. I'll re state. The 'restriction' is there, as you can see by the gasket marks on the standard turbo flange and manifold flanges. The power is not restricted, but the spool response is improved when you match these flanges. In a GTR with bigger turbos I'm finding anything that improves the spool response to be a lot of benefit.

The Dan Grand Master

The Dan

Posted
Posted
Wow, that was all really interesting to read. I'll re state. The 'restriction' is there, as you can see by the gasket marks on the standard turbo flange and manifold flanges. The power is not restricted, but the spool response is improved when you match these flanges. In a GTR with bigger turbos I'm finding anything that improves the spool response to be a lot of benefit.

Yeah, I think that's where a lot of people are confused. The manifolds aren't a power restriction so much as a restriction of response.

DAS KAMU Veteran

DAS KAMU

Posted
  • Author
Posted
Wow, that was all really interesting to read. I'll re state. The 'restriction' is there, as you can see by the gasket marks on the standard turbo flange and manifold flanges. The power is not restricted, but the spool response is improved when you match these flanges. In a GTR with bigger turbos I'm finding anything that improves the spool response to be a lot of benefit.

been meaning to come by but the lines always gone

PHA71L Community Regular

PHA71L

Posted
Posted

just looking at mine then....

there is a fair amount a few mm that could be taken off the inlet comp housing to match the gasket did you do this as well?

i guess i would have to measure up the pipe that bolts onto it first....

  • 2 weeks later...

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