how have you come up with that figure?

i'm not disputing it just surprised its that low a figure!!!

and disappointed seeing i only made 60rwhp on the dyno!!!

Drive a long journey and then feel the gearbox/back axel. You will be suprised how hot they get.

I'd say 90-100 at the wheels for a GLT in good shape. Husky will have to tell you what I was getting at the wheels (only seen from behind the car), but IIRC he said the wheel figure was what he expected the crank figure to be, which was ~115bhp.

cheers

James

well FINALLY after a few weeks i have Donut back on the roads with a few small differences to its previous incarnation:

B23E
530head (waiting to get my hands on a 531 down the track)
H cam

feels COMPLETELY different and a lot toeyer!! looking forward to whacking it on a dyno soon and seeing what kinda improvement its getting....

Good work! But...define "toeyer"...?!

cheers

James

foggyjames wrote:Good work! But...define "toeyer"...?!

cheers

James

lol - revs out far cleaner and certainly feel quicker!

i'm looking at getting closer to 65rwkw on teh dyno as it is - which is 20kw higher than last reading!!!

any less than that and i'll be disappointed!

Well it sounds like your B200 was knackered in some way, and this is a 140bhp engine...so I'd bloody well hope it feels faster!

cheers

James

foggyjames wrote:Well it sounds like your B200 was knackered in some way, and this is a 140bhp engine...so I'd bloody well hope it feels faster!

cheers

James

lol - you not wrong James!!!

any of u boys wanna hop on a boat and come out here for our dyno day???

i might actually put it on a dyno in the meantime to make sure i dont get any nasty surprises on the day.....

Now that would be funny..."STILL only 80bhp?! And just after we lost the Ashes too..."

cheers

James

foggyjames wrote:Now that would be funny..."STILL only 80bhp?! And just after we lost the Ashes too..."

cheers

James

ooowww who's a bitch!!!

whats happened to all teh smilies - only half of em are showing up!
i get none below the dancing red man....

Transmition losses on a chassis dyno are mostly down to the rolling resistance in the tyres, especialy on dynos with two rollers, as you have two contact patches and you are distorting the tyres in two places at once, inflating the tyres to very high pressures dramaticaly reduces transmission losses. james's car makes 110 ish at the wheels, 140 at the flywheel, my car makes 158 bhp at the wheels, which was 202 bhp at the flywheel, which helps show that the losses through the transmition also increase if you make more power, (more heat/ friction in the box, more distortion of the tyres etc) hence a low powered car such as my beetle when it had the stock 1200 engine showed 30 bhp at the wheels and about 38 at the crank!

That makes alot of sense Iain about the tyres, I can see how the resistance is doubled. Nice figures for you tyrbo lump.

Dai

HI CAM
I have just put my 360 on the dyno. I managed 104 hp or 78 kw. this was from about 3.5k rpm to 5.5 and then it started dropping off. It will be interesting to see how yours compares with the upgrade.
see ya later.

smithy wrote:HI CAM
I have just put my 360 on the dyno. I managed 104 hp or 78 kw. this was from about 3.5k rpm to 5.5 and then it started dropping off. It will be interesting to see how yours compares with the upgrade.
see ya later.

gday Pete!!!

I'll have to have a chat with ya tomorrow when i come pick up the other one - I hope you have got the trans done in it!!!

those are really good numbers mate - teh best we got outta the 2.3s at the last one was ( i think) 75kw - and that was with a 1ggz toyota supercharger hanging off the side!!!

where'd you go???