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View Full Version : 306bhp @10psi



paulmc
25-07-2005, 08:41 AM
My car only held 10psi @6500 on the rolling road. The Dawes lost 3ish psi. My AVC-R should be at home now, after fitting it should hold 13psi all the way, question is

Do you think 3 psi will make more power, it should make close to 30bhp more but I dont think so some how /Hmmm

I reckon it will still be around 306 to 315bhp mark any thoughts?

Is it worth another 45notes to find out :inquisiti

paulmc
25-07-2005, 10:09 AM
15 views and no guesses/ideas

oh well :embarasse

BraindG
25-07-2005, 10:10 AM
i've no clue, hence i didnt reply :)

Nick Mann
25-07-2005, 10:20 AM
Is it worth another 45notes to find out :inquisiti

I can't tell you the answer to the original question, but its worth £45 if you have the cash free, just for your piece of mind. Get them to stick an O2 sensor in as well and maybe you can play with the settings a bit while you are there.

paulmc
25-07-2005, 10:21 AM
cool,

a bit fedup today so I though i would post wee question for something to do :happy:

enigma
25-07-2005, 10:49 AM
Not a fan of at the flywheel figures........they mean nothing! You are better off getting at the wheels figures for a real world comparison!

I second Nicks opinion though - spend £45 and see, I reckon you could get up to 320, and even more if you fit the emanage and sort your fuelling/ignition!

paulmc
25-07-2005, 11:39 AM
Nick I had o2 measured last time it was down to 10.1 I will get it checked again though at the new boost level.

I have done the MAF mod so may even get more than 13psi

Yeah I agree Dave I dont like ATF either. it Made 204ATW last time. 102 tranny loses is quite a bit but it is an auto after all, 320 would be very good.

I am hoping to fit the e-manage this time home, just a bit concerned I have read that the e-manage tends to fry your coils

d3x
25-07-2005, 12:19 PM
dave, didn't you (or still are) run an emanage for a while?

enigma
25-07-2005, 12:29 PM
dave, didn't you (or still are) run an emanage for a while?

Not fitted it yet :embarasse

d3x
25-07-2005, 01:10 PM
Not fitted it yet :embarasse

oh.. lol

zentac
25-07-2005, 03:34 PM
when I originally set mine up 0.8bar was 246 at the wheels and 0.95bar was 287 on different rolling roads though.

zentac
25-07-2005, 03:35 PM
I have got some comparisons of different boost on the same set of rollers at home somewhere.

paulmc
25-07-2005, 06:43 PM
Would like a looky if you still have the info :thumbsup:

0.8 that is only 11.5psi very good power.

0.95 = 13.7psi these engines are obviously very powerful when set up right /Hmmm

AllBeItMine
25-07-2005, 07:34 PM
i would be interested to see if your boost holds to 13psi at redline... i would also be interested to see your standard fueling (which i think is what is going to kill your power figures) when you run that much boost.


let us know how it goes.

zentac
25-07-2005, 07:58 PM
i would be interested to see if your boost holds to 13psi at redline... i would also be interested to see your standard fueling (which i think is what is going to kill your power figures) when you run that much boost.


let us know how it goes.

Im holding almost 15psi all the way to the redline.

zentac
25-07-2005, 08:01 PM
at 0.53 bar I ran 223wbhp which is about right for standard boost
at 0.82 bar I ran 246wbhp

so your wbhp roughly goes up by 7bhp per 0.1 bar

paulmc
26-07-2005, 06:42 AM
cheers,

where is your max bhp made, is it 6500rpm or higher?

zentac
26-07-2005, 07:11 AM
on two of my rolling roads it was 5800 on the last one i did it was at 4800 but my fueling tailed off arround 5000rpm and ran rich. There are a couple of graphs on http://www.mitsubishi-fto.net/300bhp

enigma
26-07-2005, 07:21 AM
cheers,

where is your max bhp made, is it 6500rpm or higher?

ergo, it doesn't matter if your boost drops off after 6000rpm as you should be thinking about changing gear! ;)

zentac
26-07-2005, 08:05 AM
yeah Im changing up about 6250 on my rev counter.

paulmc
26-07-2005, 09:31 AM
"Im holding almost 15psi all the way to the redline" That is 572cfm @7500rpm, another reason why I think we have more than just TD 03 turbos.

Yeah I suppose you are right re changing at 6k, looking at my runs I only gain 5bhp from 6 to 6.5 but the torque drops over 20 lbs and it will save my engine.

AllBeItMine, I agree i think it will be too much fuel that will kill my power

ako
31-07-2005, 10:17 PM
Since I never dyno-ed it, I cant give power figures, but I can give 1/4 times which will have to do. Yes I know its the 6A12, but the engines are damn near identical apart from capacity.

10psi @ 8000 = 14.2 @ 98mph
12psi @ 8000 = 13.4 @ 101mph on a slightly slipping clutch with new intercooler
14psi @ 8000 = 12.6 @ 107mph - only change was more boost and beefed up clutch. Also managed a 12.8 @ 109, and 13.1 @ 110 on the same day.

I've tried shifting at 6 grand instead of 8, but it absolutely killed my 1/4 times and trap speeds so went back to using lots of revs instead. Playing with a G-Tech has confirmed this off the track as well - keeping the revs up gets the car moving quicker, though that may just be the difference an engine made for revving instead of torque makes.

zentac
31-07-2005, 10:23 PM
but the 6A13 red lines at 7200

Wodjno
01-08-2005, 12:06 AM
but the 6A13 red lines at 7200
Yup .. :thumbsup:

I can vouch for that.. /pan /pan /pan /pan /pan /pan /pan

ako
01-08-2005, 12:17 AM
I know that - the 6A12 redlines at 7800 and limits at 8200. Just ignore the RPMs I guess, the reason I wrote up what I did was just to demonstrate that more boost at the top end does make a LOT of difference.

Wodjno
01-08-2005, 12:19 AM
I know that - the 6A12 redlines at 7800. Its not much difference at all, the reason I wrote up what I did was just to demonstrate that more boost at the top end does make a LOT of difference.

Hmmmmmm !

yangjiesheng
01-08-2005, 02:26 AM
So Guys!!!

I'm now confused!!!
So.. does it hold or not??? for the boost?

Mine running stock turbos.. with Unichip, Blitz SSBC Controller and
HKS Boost Meter.

I floor full throttle...
Boost almost cum in immediately.. :p
But as higher rpm goes..
It drop from 1.0bar.. to 0.9... to 0.85.. at (6500rpm)

Is it normal or my GOD DAMN SSBC Controller arn't HOLDING WELL ANYMORE! :(

Tested with video cam... mine 0-60.. at 6.0sec flat.
Checkout my yahoo site. :P
http://groups.yahoo.com/group/sggalant/members

Simply join in or sign up.. is free.. :)

There are 2 clips.. 1 of it is my self video pickup in SG

ako
01-08-2005, 05:06 AM
Yes the drop off is normal. I dont know if the blitz ssbc can control it. You can remedy the drop off with free-ed up intake and exhaust - with absolutely no exhaust whatsoever, mine will hold 1 bar to redline.

yangjiesheng
01-08-2005, 05:26 AM
Oh.. :o

If that the case... then I will have to look into it.
Caused I have done up custom downpipe..
2 to 1..
De-Cat
and straight through muffer..

Guess... is the controller that only Blitz Single SBC Boost Controller
May be I need a upgrade to dual or better using apexi ARVC-R?

Any idea?
What boost controller are u using dude?

zentac
01-08-2005, 07:37 AM
mine holds 1.1 now all the way to the redline so if you need to set up your controller right or buy an apexi.

pezza
01-08-2005, 11:40 AM
mine holds 1.1 now all the way to the redline so if you need to set up your controller right or buy an apexi.

No boost cuts in any gear? :inquisiti

Is your car manual? If tip, does the apexi eliminate that pressure spike sometimes seen between the gear change?

Cheers

P

zentac
01-08-2005, 02:19 PM
Manual and I only get fuel cut if I boot it from low down in the gears, mine is set up for 1/4 mile times so once your up to 6500rpm it never drops below 4000 so I never have a problem.