My latest dyno run. Was not sure the dyno was setup right as it only saw 330 lb/ft of torque. Plus, the fan was a bit rubbish

The water meth is helping though and it put out very little smoke. There is a healthy climb in the power between 2500 and 3500, but I'll put the graph up tomorrow.

F**K ME! Is that an oil burner???????????

Nice one, bet your pleased about that.

Davy

What was it previously Jason?

What was it previously Jason?

youtube vid says 259.4 bhp?

My latest dyno run. Was not sure the dyno was setup right as it only saw 330 lb/ft of torque. Plus, the fan was a bit rubbish

The water meth is helping though and it put out very little smoke. There is a healthy climb in the power between 2500 and 3500, but I'll put the graph up tomorrow.

Consistent with the last one then really, in BHP terms.

Was it the same rolling road. Or the same type. Were they setup the same way?

If there's a restriction in the system, where do you think it is? Exhaust manifold? You've changed pretty much everything else...

J.

i reckon back to jkm where we know the dyno is correct

What happened to 300bhp that you were after. Still good figures though.

Not bad at all mate, is that without NOS?

Jason - suggest you get the car properly tuned by Rich.

7bhp over Dave (without WI) just doesn't sound right (?RR variations)

Bas

any chance of a list of mods J as probably among others i have forgotton everything you've done to it

any chance of a list of mods J as probably among others i have forgotton everything you've done to it

it be quicker to do a list of what he hasnt done to it

Yeah - The engine has been tuned up quite a bit since the last dyno run, but of course no mapping so:

Ported head & inlet

R783 racing nozzles

water/meth

BMC CDA airbox

have all not been mapped for yet.

This is my plot

Note the pretty rampant power jump at just under 3500 revs! I thought the damn car had slipped off the dyno the way it suddenly took off. However, it's clear due to the mapping / dyno, the power tails off a bit - but it holds 250bhp right up to the 4750 rpm redline - which is damn good (I have hit the limiter a bit recently )

The dyno is the same brand as JKM, (dyno dynamics) but it's a different model - a little bit older I am sure, plus it does 4wd. It was also hotter than at JKM (22.5 degrees) and the fan yesterday was a lot less powerful. I am also a little bit flummoxed why the torque plot pretty much matches the BHP plot. The one at JKM (see below) is quite a bit different.

If that sudden jump in power can be tamed / extended I am sure there is big power in there.

on the first image J those aren't power and torque lines, look more like fly and wheel torque to me.

those look like completely different cars :confused:

on the older graph your making nearly double the torque at 3000rpm than the newer one!! around 370lbft Vs. 200lbft :eek:

the shape of the plot is probably due to gearing, DD dynos should aways be run in 3rd gear to get the figures correct, the shape of the graph and the figures can vary when run in a different gear, however most cars only see a different shape graph rather than different peak power.

They certainly are not fly and wheel power plots as they would be an identical shape accross the rpm range and it clearly shows its a torque plot if you look at the top right of the graph.

wouldnt worry too much about the different shape between the 2 graphs, they are in very different scales in both ft/lb and torque as well as rpm's.

Wonder if the WI isn't set too excessive/early - as you known mate, too much flow and it actually bogs things down..

no probs that I can subjectively note, with my 5GPH (315ml/min) nozzle set to start 15% duty cycle at 0.9BAR, 100% duty cycle at 1.8BAR...

Edited 21 September, 200817 yr by devonutopia

I asked the bloke to merge in the throttle on the dyno, so that would explain the low starting point. JKM just hoofed it at 1500rpm hence all the smoke before it got going.

Ben - It does look like 2 different cars as it almost was. But the mapping is still the same hence me wanting to get it sorted. Have vagcom logs too which will helpe the mapper.

Forgot to add that today's racelogic times were done with 2 people in the car too

0-60 6.3 seconds

30-50 1.9 seconds

50-70 2.3 seconds

not bad

Wonder if the WI isn't set too excessive/early - as you known mate, too much flow and it actually bogs things down..

no probs that I can subjectively note, with my 5GPH (315ml/min) nozzle set to start 15% duty cycle at 0.9BAR, 100% duty cycle at 1.8BAR...

Hullo - I forgot to answer this. Well mine cuts in at about 0.6 bar. Possibly a little early? Like you, full cycle is on around 1.8 bar. I only have a 3GPH nozzle, so don't think it is bogging down. Might even be potential to chuck more in, in the long run.

The car on the rollers, taken by someone else which I've just stumbled across on the forum that organised the dyno day. Kind of shows how the new fuel cooler is placed too which is good for info.

Words escape me Jason........thats a beast of a car mate! Well impressed

Excelent results, it's been along time waiting to see what the Mongrel is capable of in terms that most of us can understand.

Just noticed in the above pic that the drivers door mirror isn't color coded where the passenger one looks like it's been done, or is it a trick of the light?

Just noticed in the above pic that the drivers door mirror isn't color coded where the passenger one looks like it's been done, or is it a trick of the light?

Work in progress. I'll get the driver's one done over the winter some time.