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Old 14th July 2017, 01:11 PM   #1 (permalink)
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Next stage

Hi
Wondering about my next step in performance but dont know if its worth it.

I have the following today

HKS drop in air filters
HKS midpipe
Unknown exhaust
Old ECUTEK tune from 2012

I have 618 BHP on paper, dont know the bench

Is it worth upgrading injectors and open air filters or do i need downpipes and E85 conversion also? All pumpes here in Sweden were i live have E85

thx
/Fredd
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Old 14th July 2017, 01:31 PM   #2 (permalink)
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you can change the downpipes, move to induction kits, replace injectors and remap with the latest ECUTek software and that will see you at around 650-660bhp realistically.

depends if you want more than that I guess
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Old 14th July 2017, 01:51 PM   #3 (permalink)
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Is it just a road car or would you want to take it onto track? You will struggle on most tracks with downpipes...

Otherwise, as above.
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Old 14th July 2017, 02:32 PM   #4 (permalink)
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Is it just a road car or would you want to take it onto track? You will struggle on most tracks with downpipes...

Otherwise, as above.
unless you get a silenced exhaust, russ fellows/ litchfields do them.
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Old 14th July 2017, 03:45 PM   #5 (permalink)
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unless you get a silenced exhaust, russ fellows/ litchfields do them.
Even silenced struggles with downpipes.... I have silenced ypipe and standard rear section and still struggle with mine. Downpipes are a killer on track.

Black flagged at Goodwood
Black flagged at Brands Indy

And prior to the silenced ypipe moaned at at Silverstone as well

Quite a collection
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Old 14th July 2017, 03:50 PM   #6 (permalink)
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Even silenced struggles with downpipes.... I have silenced ypipe and standard rear section and still struggle with mine. Downpipes are a killer on track.
Black flagged at Goodwood
Black flagged at Brands Indy
And prior to the silenced ypipe moaned at at Silverstone as well
Quite a collection
my switchable exhaust got on track no problem last year, with downpipes.

static quiet mode 88-90db (And this is with downpipes! ) and in loud 110db

https://www.gtr.co.uk/forum/337066-va...ml#post4174066





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Old 14th July 2017, 03:52 PM   #7 (permalink)
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Statics are easy, mine has tested between 86 & 90 (at 5-5.5K RPM) depending on the track. Its the driveby that is the killer... some tracks don't have a driveby, Goodwood nailed me at 104db on driveby

Good looking exhaust BTW
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Old 14th July 2017, 03:57 PM   #8 (permalink)
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Statics are easy, mine has tested between 86 & 90 (at 5-5.5K RPM) depending on the track. Its the driveby that is the killer... some tracks don't have a driveby, Goodwood nailed me at 104db on driveby

Good looking exhaust BTW
Yeah mine is Russ Fellows custom , Well I did oulton and anglesey last year, oulton is reasonably strict and didnt get any flags on either.
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Old 15th July 2017, 11:14 PM   #9 (permalink)
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Is it just a road car or would you want to take it onto track? You will struggle on most tracks with downpipes...

Otherwise, as above.
Only road no track, however, i think the car is loud enough already!

How much extra can i get out from e85 ? what does the turbo max out at ? 680-700?
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Old 16th July 2017, 05:37 AM   #10 (permalink)
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Usa they seem to be @ 700hp FBO with e85,would be worth changing the intercoolers as well
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Old 16th July 2017, 06:21 AM   #11 (permalink)
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In always suspicious of USA figure's though

Sent from my HTC One M9 using Tapatalk
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Old 16th July 2017, 06:43 AM   #12 (permalink)
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USA wheel quotes remain slightly higher than we wrote at the flywheel.

If you can access E85 and it costs little to no extra, I'd go that route.

You'll need much bigger injectors and will have to accept the change in range and consumption.

Get a visconti flex fuel kit from the states, then a ecutek retune. I wouldn't bother with any other hardware at this stage.
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Old 16th July 2017, 07:46 AM   #13 (permalink)
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In always suspicious of USA figure's though

Sent from my HTC One M9 using Tapatalk
I am suspicious of some UK figures as well
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