Dave had his car on the rollers at Newark today, quite a result at 257.1bhp!

Sure he wont mind me posting the vids up...


http://www.youtube.com/watch?v=avdJYpDXAA4

T'other vid
http://www.youtube.com/watch?v=iWZDdBGBDes

PS Both vids should be available in HD now too.

[Edited on 21/6/09 by flak monkey]

Impressive!

And he told me 258, I hate people that exaggerate figures........

those are serious horses, nice one

The TVR Saggaris which followed it only put out a measly 243bhp

Which is actually a bit wierd as it should be 380bhp.... Was running mega rich top end though.

[Edited on 20/6/09 by flak monkey]

what gear do they do the run in?

Fantastic!!! Makes me so tempted to get on with turbo'ing R4

How much are the dyno runs?

James

they were about £30 a run at stoneliegh, didn't go to newark so don't know

£30 for 3 runs.

They usually do the runs in 3rd

do they rev the engine until it red lines?

how to they measure the power etc, surely your creating more power in higher gears?

quote:

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Originally posted by omega0684
do they rev the engine until it red lines?

how to they measure the power etc, surely your creating more power in higher gears?

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They usually run bec's up in 4th gear on the dyno's,or third gear on most car engines,the engines don't make any more power in any higher gear,the main reason they use 3rd or 4th is to keep dyno roller speeds down to around 100mph.
I was there watching Daves car,I was very impressed with those figures,all his own work too,well done Dave

Also 4th was traditionally the closet gear to a 1:1 ratio through the gearbox which reduces loses or torque mutiplication. If I remember you get the same calculated BHP in lower gears but you may show higher wheel figures as measured directly on the dyno.

TVR with less than quoted power now there a surprise!! Never seen one reach the factory figures on the dyno I use. We also had a S2 Reanualt Clio V6 and that was struggling to get anywahere near the 255BHP it should have had.

Just interested but did they do a coast down test after the power runs? I might be tempted to put mine on one at the next show just as a comparison.

[Edited on 21-6-09 by bimbleuk]

Makes mine look a bit shabby, but I'll posy it up all the same later

is that flywheel hp or at the wheels?

They were calculated flywheel figures.

Not long got home what a great weekend was hoping someone took some pictures or did a video thanks David.

Got a tex from cloudy last night telling me it was on here really chuffed never though it would make that sort of power,
more importantly the fuelling's almost spot on considering its on carbs and i set it up on the road using a wideband kit.

Thanks for the comments and jon 258 is defiantly achievable i normally aim to run a max of 12psi i pressed the recall on the boost controller after the last run and it was 10.9psi

http://www.youtube.com/watch?v=rew3jG-whhc

Two can play at that one Dave!


Thanks for grabbing some footage and shooting me over to the petrol station, your car is truely epic, I only hope my turbo bodge goes half as well!

No problem James i enjoyed the ride in yours and yours actually sounds more powerful than mine in the videos but its not!

Hears one of my printouts power an torque the other one is air fuel ratio.
First two runs green and pink was with the boost controller mapped every 1000rpm last run blue no map.

Looking at the curves the air fuel ratio follows the peaks so i should be able to smooth it out a fair bit playing with the boost map.



Description

[Edited on 21/6/09 by locoR1]

Awesome result mate, and was a pleasure to watch it!

Lots of people were very impressed and the question arose to the internals of the motor.

Anything special in there??

quote:

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Originally posted by coozer
Lots of people were very impressed and the question arose to the internals of the motor.

Anything special in there??

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Nice power!!

Cant believe i didnt see it in the flesh!

quote:

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Originally posted by matt.c
Nice power!!

Cant believe i didnt see it in the flesh!

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