985cc Turbocharged Nova Sprint Car

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Originally Posted by novarally

Certainly extra layers of paint/lacquer are a factor. It did end up getting lavished with more of both than I intended.

But I've also had to go back to the original doors, rather than the composite items, which has resulted in a small increase.

My calculations for a lower weight also included losing the windscreen rubber, as I intended to replace the 'screen with a bonded in item, which hasn't happened yet due to the costs.

There are still a few places where I can shave some weight for no money, but I am now refusing to spend any more cash......

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Ah I'd forgotten about the doors, are you going back to composite doors in the future?

and good luck for the weekend! I hope the weather holds out for you :thumb:

Awesome Good luck for the weekend.:)

was it just the alloy hinges that we had trouble with ?

and good luck, bring home the win you deserve it

all the best for its "debut" after the rebuild. looks stunning in the grey and the split rims set it off nicely.

id be very interested in your 14inch RFX wheels for my rally car, would you sell them? not worried if you only have an odd number or that. let me know if so and i'll email you.

Looking very good Colin, you've done an awesome job on this car :)

I'm not sure how you'd change the 70-30 front to back weight balance without adding weight or moving parts.

Maybe the battery could go the near side rear behind the axel. Ride heights will help if you go to extremes and dialing in the top mounts to sit fully back for more castor should be worthwhile. Those arches & wheels could put you in some really desirable values if you got some adjustable / modified parts.

Can the bumper side tags not be attached on the inside of the wings, rather than the outside?

Have fun with the event and here's to a good time :)

wheres the weekends report?

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Originally Posted by calibra-keith

was it just the alloy hinges that we had trouble with ?

and good luck, bring home the win you deserve it

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It was just the hinges which were giving problems. Two people have promised to make me sets, but have failed to deliver.

See forthcoming post for event details.......

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Originally Posted by kenny_afh

all the best for its "debut" after the rebuild. looks stunning in the grey and the split rims set it off nicely.

id be very interested in your 14inch RFX wheels for my rally car, would you sell them? not worried if you only have an odd number or that. let me know if so and i'll email you.

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Thanks. The wheels might be available, drop me an e-mail and let me know what you're offering. Thanks.

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Originally Posted by BRoadGhost

I'm not sure how you'd change the 70-30 front to back weight balance without adding weight or moving parts.

Maybe the battery could go the near side rear behind the axel. Ride heights will help if you go to extremes and dialing in the top mounts to sit fully back for more castor should be worthwhile. Those arches & wheels could put you in some really desirable values if you got some adjustable / modified parts.

Can the bumper side tags not be attached on the inside of the wings, rather than the outside?

Have fun with the event and here's to a good time :)

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I'm still considering moving the radiator to the boot to give me some improvement. The left rear corner is really light, and is picking itself up far too readily.

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Originally Posted by burgo

wheres the weekends report?

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Apologies, it's been a very busy time since returning from racing.

Sadly it was not the glorious debut I had planned.........

I had electrical problems through both days of racing, which weren't solved by swapping batteries numerous times.

Basically I've had a top end misfire, only evident under load, anything much above 5k rpm and it starts missing, and popping. You'd think to listen to it I had a very aggressive anti-lag system on it, but I don't.

First thoughts were that the voltage was dropping enough for the ECU to stop talking to the fuel pump, but I don't have the OMEX software/laptop lead to get into the ECU so I can see what's going on in there.

We re-wired the fuel pump as that seemed to be one problem (it was only seeing 10v after the relay), but that didn't cure it.

We've removed the crank sensor and re-set the gap to the pulley with no improvement, gone through every wire on the car, every earth etc.

In the end the weather was so bad I didn't race on Sunday afternoon, and the misfire was enough that it could cause damage, so it wasn't worth the risk. An awful lot of cars went off the track that afternoon!

Bearing in mind the engine was re-fitted without any changes from last year (when it was running perfectly), logically the suspicion has got to be the wiring/earths.

I've not had chance to investigate any more yet, but the other things I need to check are;

1. Fuel pressure
2. Compression
3. Coil pack
4. HT leads
5. Replace the plugs (always start with the basics!)

Apart from the engine running woes, the new clutch/flywheel and front brakes all performed fine.

I had 2 spins, one on Saturday and one on Sunday, both at exactly the same corner, and I've never had so much as a twitch there before, so that's a bit worrying. It's a left hand turn, and it could be that the left rear corner of the car is now so light it's upsetting the balance. But I've also now got the Tran-X plate LSD in it, which has very different characteristics to the old ATB diff I used, so it may be that I need to adapt my driving style to the diff.

There's an oil leak from between the engine block and bellhousing, it looks to be gear oil, so the 'box is going to have to come out to replace the input shaft seal.

Basically I suffered from not having time to do some proper testing before racing it in anger!!

There are some videos and photos from the event, I will post up the links when I've got them.

Still awesome! Unfortune of the built cars, but don't give up!