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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

For the price it wouldn't be I guess just to chase 15-20kw..Probably wouldn't even notice it. Will find other ways for further response

do u have a build thread on your setup as I'm keen to learn more about -9s?

What are u making with these snails?

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Piggaz Grand Master

Piggaz

Posted
Posted

do u have a build thread on your setup as I'm keen to learn more about -9s?

What are u making with these snails?

Tossing up between -5's or -9's mate?
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RB2600 Rising Star

RB2600

Posted
Posted (edited)

^Have a friend running GT-SS at 310rwkw @ 18psi (RPM dyno) approx 90-92% inj duty cycle he said. Car has been tracked many times. Fuel system and AFMs are stock.

I have the tendency to go down the same route - retain stock fuel system and AFMs

But I'm concerned about the high injector duty cycle as my car unlike his will see some street and hills use with different temperatures and varying loads.

I also have -9, RPM cam gears, stock dumps, Mine's front pipe, 3" test pipe, 3.5" Tomei Ti catback and PFC.

So all in all, is 90% injector duty considered safe? Accounting for any spikes that may occur.

I know my friend's car is a pretty good example of it's reliability at that level, but would just like some opinions with other guys running -9's who run the car on the street and track as well.

Edited by RB2600
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Marko R1 Grand Master

Marko R1

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Well what captured my attention is 350kw from -9s...what does it take in terms of boost level and supporting mods to get to this number on 98 as I don't want to run e85?

Hi Nick (levinboy) - what power are u making with your setup?

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levinboy Grand Master

levinboy

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Well what captured my attention is 350kw from -9s...what does it take in terms of boost level and supporting mods to get to this number on 98 as I don't want to run e85?

Hi Nick (levinboy) - what power are u making with your setup?

I'm making 350kw on 98 pump

Full boost at 3800rpm lower depending on weather, 22psi

Built engine still 2.6

Id1000s, Nismo fuel pump

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Marko R1 Grand Master

Marko R1

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I'm making 350kw on 98 pump

Full boost at 3800rpm lower depending on weather, 22psi

Built engine still 2.6

Id1000s, Nismo fuel pump

im spinning out - great numbers there on 22psi :)

pm sent

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Marko R1 Grand Master

Marko R1

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Will hopefully have some -9 and E85 results tomorrow :yes:

The old mans car is due out of unigroup tomorrow :whistling:

please share the results - would luv to see some numbers on the outcome :)

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Piggaz Grand Master

Piggaz

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im spinning out - great numbers there on 22psi :)

pm sent

I'd say, once again, attention to detail on the setup is where the better results are. Big, size matched exhausts blah blah.

Got a sheet Nick?

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gtr jet Veteran

gtr jet

Posted
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I run -7's with a shitty exhaust and stock afm's. With id1000's and a walbro 400 fuel pump I make 325kw on 20psi with E85. If I fix my exhaust and chuck some bigger afm's on I'd probably crack 350kw.

It'd be much easier to do it with -9's and I don't think there would be much more lag involved.

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Marko R1 Grand Master

Marko R1

Posted
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paul - u should overlay your graph with nicks, i wonder what the difference would be in response & what revs u have full boost

Here is dyno sheet

Tuned for response, hence the drop up top and my cat mainly being restrictive

8A48BB11-9718-4233-9092-94AC91FB0942-568

Will be retuning it soon with new cat soon :)

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Piggaz Grand Master

Piggaz

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Posted

paul - u should overlay your graph with nicks, i wonder what the difference would be in response & what revs u have full boost

Ill have a play tonight. Need a calculator and a graph to doodle on.

Fkn speed. Put it in RPM farken!

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