Stu @ M Developments

iTrader: (12)

LOL at all the speculation and then the actual facts are very simple indeed. ROFLOL

pugo

so did it drop at 6000 or would it have climbed to 350bhp

I am a bit confused now?????

Paulie Wheelnuts

Pugo,

Dropped like a stone...a very heavy one, at 6000 coz the driver let off the throttle.

pugo

so it didn't even out at 6000 rpm then????? did you get a graph

because i cannot see with std cams, how its going to make its power a lot higher up the rev range than about 6k

not disputting the fact but i would love to see this graph

here's mine with on greys and t34

Paulie Wheelnuts

Yes, got a graph.

Will get a pic posted when I get my camera back from ryan.

Paulie Wheelnuts

Pugo,
My torque curve maxed out at 312lbf at 4481rpm and then dropped to 280lbf at 6000rpm., whilst at 4481 rpm the bhp was obviously still rising.

pugo

looking forward to seeing this graph, do you know or did tiff tell you as to what the cams were dialled in at i.e deg's at full lift???

because to be making power as late as your saying , you must have the inlet cam wound off quite late

Paul Eggleton

@3 pages of speculation before we find out he let off at 6K

bud-weis

i think it was mentioned on page 2 , we all got carried away

so i guess 320 @ 6000 aint too shabby then

but next time redline the fooker

tonyk

Just out of interest lads what rolling road was it?

Karl

It's been a while since Ive seen Tiffs old car, but if I recall correctly I mapped it at around 27psi on a 0.63 T34 and greys. It is certainly more than 320bhp unless the boost levels have been altered. ( Or indeed if the amal valve has failed it will also be low on boost)

aduz

that result surprises me..thought it would be way more than that

Karl

The result is only a suprise if we know the full facts. If it was indeed running 27psi and only making 320bhp then something is seriously wrong and Id recommend the car be looked at asap!!

aduz

lol@karl

ryan_belfast

It is holding 26psi if i remember correctly, was monitoring the SECS monitor when I was in the passenger seat!

ryan_belfast

It was at EastCoastCustoms Tony. I dont dispute the figures, i still think its respectable!

ryan_belfast

You have a scanner you twat, fooooking use it!

ryan_belfast

I think i can speak for my father here and say, if anyone is looking at the car, i dont think he would hesitate for one second, it would be going back into your hands to make sure everything is tip top....I feel another road trip coming on here!!!

Karl

Seriously im not joking, if its holding 26psi and is genuinely only making 320bhp then something is amiss!!

Im not just saying that because I used to look after the car, but it could be something very simple such as a jumped camp belt (i.e wrong cam timing)

The car made 290bhp with 17psi as a stage 1 so its not going to be 320bhp with a 10psi increase and a larger turbo!!!

Get it checked by your local cossie specialist!!

ryan_belfast

Local Cossie Specialist??? In Northern Ireland? Our local one is you ffs!!!

aduz

ryan_belfast

YOU KNOW WHAT THIS MEANS!!!!




ROOOOOOAAAADDDDD TRRRRIIIIIPPPPP!!!!!!!!!!!!!!!!


YEEEEEEEEEE HAWWWWWWWWWW!!!!!!!!!!!!!

saff_cossie

On a trailer to be on the safe side I would say.

Not an expert on boost but if at 17 it made 290 and 27 it makes 320, the car doesnt sound right and also to build a larger turbo in to the equation.

pugo

funnily enough my next question was going to be does this have vernier pullies and are you sure one of them hasn't slipped

Pugo

Anonymous

....you all getting over excited saying about its because the driver let off at 6k rpm...in my understanding that is peak power for the t34 .63 so something is not right!!!!

pugo

phil,
it has more to do with the cams and timing to where it makes its peak power as my graph shows, on my first run i ran the inlet cam FL at 115atdc but on the second run i ran it at 110atdc, shifted the peak power point down3-400 rpm and upped it 25 bhp so if the guys verniers or cam wheels have slipped there is a possibility that may be the cause or something silly like he has lost a bit of compression i.e rings, h/gskt air leak etc

Anonymous

Hi Pugo....bollocks to wanting a belt slip!...If that is a possibility do not use the vehicle until checked

pugo

my thoughts exactly, tis why i asked him if karl/tiff gave him the cam timings so that he could check it or was it set up by karl like that i.e to make its power delivery smoother and higher up the rev range

ryan_belfast

Maybe the rollers it was rolling roaded on to make 290 at stage 1 were crap rollers? and this 320 is the corrct figure.

Karl

Defo not, rollers were nobles and the 290 was correct.

ryan_belfast

Maybe it needs the Mr Norris touch again then

Karl

Are you sure your RR is accurate?

I normally make 320bhp on a T34 at around 1.4bar boost, 350bhp at 1.7 bar and 370bhp at around 1.9bar. Obviously it varies depending on engine mods and Tiffs old car is a standard engine so Id expect it to be on the lower side, but 350bhp is about correct for this engine at 1.8bar.

stevieturbo

Is any RR accurate ?? Rollers all across the country vary.

Given an Evo and automatic TT Supra made 374bhp on the same day, I highly doubt their rollers are reading low.

ryan_belfast

I have to agree with that stevie.....It seems their rolling road is VERY accurate as they also rolling roaded the fiesta with 160bhp which is correct as it was rolling roaded at another venue with the same 160bhp.

Karl would you come over to set the car up if flights etc were paid? Just wondering.

bud-weis

i'll come

i dunno fook all but sounds like a good opportunity for a piss up

Ian M

if the rollers are accurate you must have a problem. that engine spec should produce considerably more than 320 bhp. put it this way when potential customers phone karl, msd, mad or whoever and ask what their greys, t34 conversions produce they wouldnt have many takers if the answer they gave was 320 bhp.

rapidcossie

i can post the graph if someone can show me how its done??

its not 380 atw the wheels as 2wds dont lose 90bhp thru the transmisson

oh and sorry, my mistake...it was holding 21.9 psi

pugo

save it to your photobucket account (or such like) and then add it as an img using either copy and paste from photobucket or the img tags on here

HTH

as this i gotta see, rwd 380 bhp on greens


i may end up with egg on my face though

pugo

rapidcossie

dont have it on pc would have to get it scanned on??

i dont claim 380 bhp....i made 287.9 atw running 21.9 psi

never clamied fly figs

2wd loses 50 bhp max thru trans

pugo

i didn't say you did claim flywheel figures, however i don't believe you that you made 287.9 at the wheels

and yes rwd losses are higher than that

sorry