Rolling road near Herts/Bucks/Beds/NW London

[johnsimister]

As above - can anyone recommend a rolling road able to fine-tune a Dellorto-fed, mildly-tweaked Elan? I'd like to eradicate the fluffing on pick-up in the midrange once and for all. Slow-running jets or pump jets seem the likely culprits but a rolling road would reveal what's really happening and how to fix it. The mild tweaking includes Sprint inlet valves, bigger-than-Sprint exhaust valves, gasflowed ports and Cosworth L2 cams. It goes extremely well apart from that stutter.

Thanks

john

[hatman]

A wee bit off your specified patch but you could do worse than contact Stuart Gurr on 07736 063945 at West Molesey, Surrey. He's got a rolling road, knows his Webers and Dell 'Ortos and did a good job on my car.

[johnsimister]

I shall give him a call. Thanks very much.

John

[tdafforn]

there is also wilshires garage at wimpole near cambridge. I had him set up DCOEs on my spitfire 5 years ago..
not sure if he is still around!
tim

[rgh0]

HI John

Some of your problem may not be solvable due to the l2 cams - their longer duration and increased overlap makes this sort of issue very hard to solve as the hole in the torque curve it creates leads to a range of transient mid range response problems.

regards
Rohan

[nigelrbfurness]

If you are running L2s to the original spec, you will need your distributor modifying - new bob weights to change the advance curve. This could be your problem. I have L2s on 45DCOE webers (1760 ax block), big valve head and I get a clean acceleration curve from 1500 RPM with no flat spots or stutters. The carbs were jetted by Graham Hickman at Teme Valley Rqcing, near Hereford - bit of a drive from Bucks, but it was from Bristol too.

Nigel