Just got back from Interpro Rolling Road........
12-05-2005, 04:10 PM
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Just got back from Interpro Rolling Road........
Just got back from Interpro Rolling Road with Phil 2400.
Phil's just rebuilt/run-in his engine (his 200 block had cracked within one of the cylinders).....So he's done a rebuild using his old 205 block
Nice Stage 3 spec RWD Cossie - goes very well
SCS Chip
Greens
T34
Pace 500 intercooler
Plenty of bling........
341.5 BHP on 22 PSI boost........fueling spot on
Phil's just rebuilt/run-in his engine (his 200 block had cracked within one of the cylinders).....So he's done a rebuild using his old 205 block
Nice Stage 3 spec RWD Cossie - goes very well
SCS Chip
Greens
T34
Pace 500 intercooler
Plenty of bling........
341.5 BHP on 22 PSI boost........fueling spot on
12-05-2005, 04:22 PM
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Originally Posted by TIFF-C20WTH
What color is that Sapphire??????????????
Previous owner had a bad accident - creased up the shell/floorpan.....so car was rebuilt using a brand new 4WD shell and painted by Yeovil Ford (main dealer).
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12-05-2005, 04:31 PM
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Originally Posted by chip-3door
Did you get a printout of BHP figures at various points Doug?
If so i can tell you the peak torque mate
If so i can tell you the peak torque mate
12-05-2005, 04:47 PM
#11
Doug, best thing you can do is write the figures down every 250rpm, if thats possible?
Then ill quote the torque back to you, or a clever bloke like yourself can work it out easily using the following formula:
Torque = (BHP / RPM) * 5252
Then you can draw the torque curve
Excel is your friend here of course, put rpm in one column, then BHP and that formula for the third column
Then ill quote the torque back to you, or a clever bloke like yourself can work it out easily using the following formula:
Torque = (BHP / RPM) * 5252
Then you can draw the torque curve
Excel is your friend here of course, put rpm in one column, then BHP and that formula for the third column
12-05-2005, 05:10 PM
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Originally Posted by Rhys
Doug was there a Blue Rover over there with a big cut out in the front for Intercooler etc by any chance?
Photoshop enhancement:
12-05-2005, 05:12 PM
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Originally Posted by chip-3door
Doug how many rpm is it doing in whatever gear that was at 90mph mate?
Cause thats the point he hits peak torque.
Cause thats the point he hits peak torque.
Dont know what gear it was in.........run was to 120 MPH so...4th gear??????
Dont know what RPM either 
12-05-2005, 05:29 PM
#17
Lol, cant really work it out without knowing that.
I guess they would have taken it to about 7k?
Assuming 120 was 7K then 90 would be 5250 or so, at which point torque and bhp are the same anyway so about 310lbft or so.
But obviously if 120 isnt 7K then thats totally wrong!
I guess they would have taken it to about 7k?
Assuming 120 was 7K then 90 would be 5250 or so, at which point torque and bhp are the same anyway so about 310lbft or so.
But obviously if 120 isnt 7K then thats totally wrong!
12-05-2005, 05:34 PM
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It deffo produced more torque than BHP on SCS (Harvey Gibb) rollers when that chip was installed - IIRC it was 356 LB/ft.........Shall I draw a torque curve in - then you can tell me if it's right or wrong???
12-05-2005, 05:45 PM
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...lost alot of BHP for a 2wd tranny...i suggest it was on "bullshit flywheel mode" as 341 @ 22psi is a tad optimistic imo.
I will say it again a Rolling Road is a diagnostic tool only.
I will say it again a Rolling Road is a diagnostic tool only.
12-05-2005, 06:48 PM
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Chip / Doug....
Assuming it was run in 4th gear (1:1) with a rear diff ratio of 3.62 (got that figure in my head as RWD diff ratio) on 215 40 17 tyres (which i think is what Phil is running.....
90mph is approx 4600rpm.
Looking at the graph, its somewhere around 310bhp at 90mph / 4600rpm, therefore
Torque = (310 / 4600) * 5252 = 354 lb/ft
Obviously that figure could be toooo low or toooo high, dependant on the exact revs that peak torque was made / the guess work in the power at those revs / whether I've got Phil's tyre size right and whether i've got the diff ratio right?
Assuming it was run in 4th gear (1:1) with a rear diff ratio of 3.62 (got that figure in my head as RWD diff ratio) on 215 40 17 tyres (which i think is what Phil is running.....
90mph is approx 4600rpm.
Looking at the graph, its somewhere around 310bhp at 90mph / 4600rpm, therefore
Torque = (310 / 4600) * 5252 = 354 lb/ft
Obviously that figure could be toooo low or toooo high, dependant on the exact revs that peak torque was made / the guess work in the power at those revs / whether I've got Phil's tyre size right and whether i've got the diff ratio right?
12-05-2005, 06:53 PM
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Originally Posted by Sketch
Chip / Doug....Assuming it was run in 4th gear (1:1) with a rear diff ratio of 3.62 (got that figure in my head as RWD diff ratio) on 215 40 17 tyres (which i think is what Phil is running.....
90mph is approx 4600rpm.
Looking at the graph, its somewhere around 310bhp at 90mph / 4600rpm, therefore
Torque = (310 / 4600) * 5252 = 354 lb/ft Obviously that figure could be toooo low or toooo high, dependant on the exact revs that peak torque was made / the guess work in the power at those revs / whether I've got Phil's tyre size right and whether i've got the diff ratio right?
90mph is approx 4600rpm.
Looking at the graph, its somewhere around 310bhp at 90mph / 4600rpm, therefore
Torque = (310 / 4600) * 5252 = 354 lb/ft Obviously that figure could be toooo low or toooo high, dependant on the exact revs that peak torque was made / the guess work in the power at those revs / whether I've got Phil's tyre size right and whether i've got the diff ratio right?
Thats close enough Sketch.......lets just say we've "allocated" him between 354 - 359 lb/ft ... I'm sure Phil will be happy with that
12-05-2005, 07:43 PM
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Originally Posted by Doug Stirling
It does go well Gareth - could not get a torque reading today.....but it made
356 LBS/FT on Harvey's rollers when first set up just over a year ago
356 LBS/FT on Harvey's rollers when first set up just over a year ago
I know Phils car is quick but if interpro told him that torque could not be measured then that is a complete untruth !!!
Dynos/rolling roads do NOT and CANNOT measure BHP.
It is back calculated from TORQUE and RPM only.
With out either measured the BHP cannot be shown.
If a Dyno/rolling road could not measure torque then it CANNOT calculate BHP.
Sorry but something aint right there @ interpro
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