Stock Rb26 + -9S + E85

[usmair]

Got some bad news

Car is struggling to make power

Made 317kw at 22psi on e85

They are going to run some tests on it tomorrow to see what the problem is

[SiR_RB]

thats low especialy for e85 and 22psi !

could be a restriction?

[Daz]

There's always bugs, I'm sure you will end up with a good result

[usmair]

There's always bugs, I'm sure you will end up with a good result

lets hope so

[fatz]

as they say

turn the boost down and drive it till you build another motor!

[Brezza]

Got some bad news

Car is struggling to make power

Made 317kw at 22psi on e85

They are going to run some tests on it tomorrow to see what the problem is

Seems about right?

i'm making 372rwkw on 24-25psi on E85 with -5's

the only restriction would be the turbo's

E85 won't make turbo's automatically make 50rwkw more top end that it would on PULP.

E85 gains are in the midrange, so you might've only made 317kw but the midrange would be a lot stronger than most others in PULP

[usmair]

ok found the problem! they did a smoke test and found that one of the gasket/hoses on the intake side under the plenum is cracked and is leaking pressure

not the motor but still a 3/4 day job to take it out and fix it... labour is going to bend me over! but it should make good power once its sorted!

[Piggaz]

Seems about right?

i'm making 372rwkw on 24-25psi on E85 with -5's

the only restriction would be the turbo's

E85 won't make turbo's automatically make 50rwkw more top end that it would on PULP.

E85 gains are in the midrange, so you might've only made 317kw but the midrange would be a lot stronger than most others in PULP

Seems a little low. 372 at 25 on E85

[usmair]

Seems about right?

i'm making 372rwkw on 24-25psi on E85 with -5's

the only restriction would be the turbo's

E85 won't make turbo's automatically make 50rwkw more top end that it would on PULP.

E85 gains are in the midrange, so you might've only made 317kw but the midrange would be a lot stronger than most others in PULP

317kw on e85 is shocking... clearly something is up with that sort of power on -9s

we've found the leak... going to fix it then try again!

[Brezza]

i probably should get a smoke test done on my GTR.

that's the only thing that i havent tested it for.

i had issues with the idle searching, then i had the tuner block off the hoses going to the idle control valve under the plenum and i picked up another 1.5 of boost on the same settings.

i think all my hoses probably havent been replaced yet, and its an 89 GTR so pretty old hoses.

[wolverine]

It shows the value of smoke testing every time before it goes on a dyno.

[Brezza]

where are the common places for leaks when a smoke test is done?

[usmair]

i probably should get a smoke test done on my GTR.

that's the only thing that i havent tested it for.

i had issues with the idle searching, then i had the tuner block off the hoses going to the idle control valve under the plenum and i picked up another 1.5 of boost on the same settings.

i think all my hoses probably havent been replaced yet, and its an 89 GTR so pretty old hoses.

yeh would def get one done to get the piece of mind that there are no leaks

and yes 375kw @ 25psi with -5s is sorta low... should be nudging the 400 mark

[Brezza]

I've still got std cams, which might be holding it back a little?

will be putting some type B poncams in soon, and will get smoke test done.

hopefully be nudging 400kw if everything is right.

[wolverine]

Leaks can be anywhere from split hoses, loose clamps, plenum gaskets.

[Rolls]

where are the common places for leaks when a smoke test is done?

all gaskets and silicon joiners. I had the sandwidge gasket between my intake manifold leaking (rb25) never would have found it otherwise, gained 4psi just fixing that, had to turn the boost down as it started to detonate.

[R31Nismoid]

I've still got std cams, which might be holding it back a little?

will be putting some type B poncams in soon, and will get smoke test done.

hopefully be nudging 400kw if everything is right.

Cams wont be holding you back. I've got 360rwkw on 19psi and PULP with -5s

20-22psi will see 380rwkw on PULP (stock cams, on 2 separate cars down here)

Others using E85 have hit 400-420rwkw.

There are other issues with your set-up

[usmair]

all gaskets and silicon joiners. I had the sandwidge gasket between my intake manifold leaking (rb25) never would have found it otherwise, gained 4psi just fixing that, had to turn the boost down as it started to detonate.

what kind of boost are we talking?

from 10 to 14 or something like 22 - 26psi??

[Brezza]

all gaskets and silicon joiners. I had the sandwidge gasket between my intake manifold leaking (rb25) never would have found it otherwise, gained 4psi just fixing that, had to turn the boost down as it started to detonate.

Cams wont be holding you back. I've got 360rwkw on 19psi and PULP with -5s

20-22psi will see 380rwkw on PULP (stock cams, on 2 separate cars down here)

Others using E85 have hit 400-420rwkw.

There are other issues with your set-up

Well hopefully a smoke test can show if there are any leaks anywhere and when the cams go in the clearances will be checked so that should hopefully rule out anything to do with the head?

it very may well be a leak somewhere.

the car made less power when i changed my intercooler piping.

i made 350kw on 21psi on PULP then changed my piping because the stock one blew off and split. replaced it with a silicone one and it made 315-320kw on 21psi.

so it very well may be a leak somewhere in the I/C piping? maybe just enough to be bleeding out a slight amount of air?

[Rolls]

what kind of boost are we talking?

from 10 to 14 or something like 22 - 26psi??

16 to 20psi