Dyno test for Wobba

[Wobba]

Off to Surrey RR on Saturday with a bunch from C16V and a few others.

I've fixed all the problems I can find, replaced a few items (apart from a slight 'box leak) and am looking forward to trying the car out on a different dyno to the Ktec ones where the car didn't produce expected figures.

I've replaced my cracked manifold and changed exhaust for a slightly smaller bore one now. Oreca was just too extreme for everyday, had to come off for now. I've fixed a potential cooling issue which meant it never got hot enough as well.

I am hoping it will do much better than the 165 bhp it was dyno'd at last time at Ktec. I suspect their figures are quite down on the true power.

So currently:

714 block (4 bar pressure at cold start and 1.3 at hot idle)
APD Spec II Megane 714 head on coilpack
Emerald ECU
Catcams 225's & Verniers
Jenvey 45mm throttle bodies
Supersprint manifold & downpipe (wrapped)
Mongoose 2.25" full system/decat

Gripper LSD
AST Solid Top Mounts (set with negative camber and positive caster currently, awesome)
AVO Coilovers
Powerflex ARB thingies
Camber correction bolts
Short shift gear lever
Yanoo Clevis bar-minibar mod
Toyo R1R tyres

Ktec big brake conversion with Mintex M1155 pads
Braided brake lines
Braided fuel hoses

Semi stripped

I am hoping for 180 bhp or more this time. Any less and I will be doing more checks.

Craig at APD has said he will check it all over if I want. If there is anything wrong I would suspect cam timing as that's the only thing I have not checked. Hopefully there is nothing wrong.

Some random pics to make you salivate, and besides, I've not posted any for ages of my car



















Wobba.

[Clio-Girl]

you are becoming a bigger whore than coops

[dkrevs]

I hope you'll get some nice figures this time. You have a really nice Williams.

PS: That Oreca Gr.A exhaust is PORN!!

[Wobba]

Thanks guys.

Ronee: I've not posted pics on WC for ages :(

Oooh....maybe a big pic thread is in order!

[midge]

Did Craig do the cam timing? cant see it being wrong tbh! and if it was i expect K-tec would have picked it up on the rr, Hope it makes the figures for you. Engine looks mint!

[Clio-Girl]

Thanks guys.

Ronee: I've not posted pics on WC for ages :(

Oooh....maybe a big pic thread is in order!

hehe im only kidding, ITB porn is always acceptable of course!

we will need a picture thread after the weekend i may even take some bay pics of mine, its been so long since i did i dont have any of how it looks now :(

[bigjim]

surely with that spec throttle bodies cams etc u should be nearing 200bhp??? i would be very dissapointed if it was only pushing out 160-170bhp, maybe just the ktec rollers, how does it drive, does it feel like its proper quick?

[Wobba]

I can't keep up with all the different Wobba's car related threads.

Life is never boring with the Wobbamobile!

Jim:

I think there is a lot of hype with figures so expectations are probably higher than reality. I remember reading of 190 bhp cars with just cams in Max Power back in the day...load of bollocks made up by owners and tuners alike with dodgy rolling roads. Unfortunately, these figures have been the bandied about for so long people believe them to be true and inevitably lead to disappointment for an owner when measured on a properly calibrated dyno.

That's not to say all RR's read high, some read low, as I suspect is the case with Ktec's dyno (unless my tyre pressure or suspension geometry are to blame) as the car feels quicker than 165 bhp...

Yes, it feels quick, but then it felt quick when it was dyno'd without cams or ITBs etc at 152.1 bhp. The noise with ITB's is intoxicating.

Lately it has felt at its best as I have replaced a number of parts now and sealed the exhaust leaks as well and changed a few map settings to improve cold starts and idle.

It currently handles supremely well in the dry, and most amusingly in the wet. I think 180 bhp is on the cards, maybe 181.

[Yanoo_]

Yanoo Clevis bar-minibar mod

that's + 10 mental HP :D :D

This car should perform over 195 HP @ flywheel IMO.

Oszy's Willy performed 158 hp @ wheels 2 years ago and it had only a minor modification: increased CR ~ 11.5, CC225 + custom vernier pulleys (timed for wide torque curve), chipped stock ECU/management, wrapped Elia manifold, custom exhaust, ported cylinder head.

[Wobba]

Yanoo Clevis bar-minibar mod

that's + 10 mental HP :D :D

This car should perform over 195 HP @ flywheel IMO.

Oszy's Willy performed 158 hp @ wheels 2 years ago and it had only a minor modification: increased CR ~ 11.5, CC225 + custom vernier pulleys (timed for wide torque curve), chipped stock ECU/management, wrapped Elia manifold, custom exhaust, ported cylinder head.

Thanks Yanoo_, but if you think about it, that spec of Ozzy's is similar to mine except for the ITB's and management. The 45mm ITB's wont be worth 40 hp alone no matter how well mapped. If it makes 195+ I'll eat my pants.

To get near or over 200 I'd need a high comp bottom end and/or seriously mad cams.