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-7/9s Or -5s Garretts

Adz2332

By Adz2332,
in Engines & Forced Induction

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R31Nismoid
R31Nismoid

Gospel huh? Considering im making a lazy 250rwkw @ 12psi with GT-SS, and I know of at least another 10 cars making over 300rwkw (between 300-330rwkw) on 20-22psi… On various dynos to boot (more on th

discoPumpkin
discoPumpkin

Ants is right, lag and no responsiveness should be a crime or atleast punishable under the anti gay laws. It's beyond me why the hell people r so intent on makin there car run like a pig, and if peop

Ants
Ants

The quality of retard bingo in here is heavily retarded.......................to the point that I'm inclined to think this thread has well and truly served its purpose and should be closed. GTR_JOEY

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Marko R1 Grand Master

Marko R1

Posted
Posted

Not likely mate Piggaz 2.8L stroker with all the fruit is probably at around 20psi @ 4K. Full boost on your car would be around 5-5.5K id say.

I'd hope not - my GTRS's were on full song @ 5.5krpm.

When I had -5s, the turbos were getting tickled at about 3.5krpm and pretty were in 'get up and boogy mode'.

Both examples on 2.6ltr.

XGTRX Veteran

XGTRX

Posted
Posted

Not likely mate Piggaz 2.8L stroker with all the fruit is probably at around 20psi @ 4K. Full boost on your car would be around 5-5.5K id say.

I'd hope not - my GTRS's were on full song @ 5.5krpm.

When I had -5s, the turbos were getting tickled at about 3.5krpm and pretty were in 'get up and boogy mode'.

Both examples on 2.6ltr.

Sounds about right.

Ants Grand Master

Ants

Posted
Posted

That thing of Paul's is a weapon, and not the average build. It's got ALOT of rnd and tricks, all of which work. A lot of secret squirrel.

yep totally agree with you.

IMO -5s on stock 2.6 will see full boost around 4.5-5K - if you get it earlier than then I want to know.

Ants Grand Master

Ants

Posted
Posted (edited)

firstly are you really running 25lb????

secondly if you are, how bout you throw a dyno chart with boost / rpm curve so we can see at what RPM your really making at full boost with -5s....then we will all know.

Edited by Ants
Marko R1 Grand Master

Marko R1

Posted
Posted

I'd really like to see an overlay of -9s with -5s on a dyno graph.

:)

Does anyone have this info or happy to post their graphs running -9s and another with -5s...from here, we can overlay to see the difference...would put a lot of debate to rest

Piggaz Grand Master

Piggaz

Posted
Posted

I'd really like to see an overlay of -9s with -5s on a dyno graph.

:)

Does anyone have this info or happy to post their graphs running -9s and another with -5s...from here, we can overlay to see the difference...would put a lot of debate to rest

There is one out at unigroup on the same car. On the dyno, they came on exactly the same but the 5'a made more grunt. However, to drive they were a TOTALLY different car!
Ants Grand Master

Ants

Posted
Posted (edited)

What's wrong with running 25 psi Ants? :P

LOL....I was wondering when you were gonna say somethin.......aside from being a ship load of boost nothin really just curious.....about how long an engine would last if predominately driven at that boost level :glare:

Edited by Ants
Marko R1 Grand Master

Marko R1

Posted
Posted

There is one out at unigroup on the same car. On the dyno, they came on exactly the same but the 5'a made more grunt. However, to drive they were a TOTALLY different car!

That is odd Paul. Dyno shows that they huy full boost at same rpm?

XGTRX Veteran

XGTRX

Posted
Posted

firstly are you really running 25lb????

 

secondly if you are, how bout you throw a dyno chart with boost / rpm curve so we can see at what RPM your really making at full boost with -5s....then we will all know.

Didn't answer the question.. why the doubt? I am offended.

Piggaz Grand Master

Piggaz

Posted
Posted

That is odd Paul. Dyno shows that they huy full boost at same rpm?

Ill try and get the sheet. Or it could have been the power low end was the same but boost levels were pushed to the right a tad on the 5's.

Leave it with me.

Piggaz Grand Master

Piggaz

Posted
Posted

LOL....I was wondering when you were gonna say somethin.......aside from being a ship load of boost nothin really just curious.....about how long an engine would last if predominately driven at that boost level :glare:

I spose the tune would have a massive part in this. Mine lasted 7 years with anything upto 2.0 bar shoved down it... Only died because the oil pump had a hissy fit.

Mick_o Grand Master

Mick_o

Posted
Posted

yep totally agree with you.

Mate I watched a built 26 with -5's and poncams on a dyno for a good hour and full boost was by 5000 and it went to 345kw iirc. No chance of getting -5's in by 4 on a 2.6L ;)

IMO -5s on stock 2.6 will see full boost around 4.5-5K - if you get it earlier than then I want to know.

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Ants Grand Master

Ants

Posted
Posted (edited)

I know Paul.....I know. I'm just conservative and want to have an engine tuned to last as well (I will certainly not push my advance spec beyond 25psi). Your car is insane and would of loved to have a 2.8ltr with similar mods to yours :)

Keen to see those graphs though.

Edited by Ants

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