Plenum Mod......advice needed

[sevans]

Any help much appreciated with this, it's now stopping me getting the car on the road.
One of the problems I had dropping the 2.0L Cosworth engine into the Tasmin was the air box/ Plenum being too close to the chassis. To overcome this I modified the air box so the throttle body sat at the front of the box rather than the bottom-middle. The concern I have now is that Cyl 1 is running lean because the throttle body is sat right over it's intake (this was confirmed by checking the plugs). This will be bad news on a turbo engine.
Can anybody recommend a company that could modify and/or test an air box/plenum. I need somebody who knows their stuff on this one, It's not something I can afford to get wrong.
Any help much appreciated, I know it's not the normal V8/280 stuff.

[19560]

Have you spoken to two sheds?

[2 sheds]

Not sure without seeing it, if you email a picture or 2 i could at least give an opinion, have you tried any Cosworth specialists ? or I do have some serious and very experienced engineers that i farm work out to, maybe we could help, happy to look at it either way.
Tim

[sevans]

Tim, thanks for the offer. I'll email you a couple of pictures, one of the standard airbox and one of the airbox I modified. I would be grateful for your opinion. I am away working for the next 3 days so it will be Wednesday before I send them. Thanks again.

[350matt]

A couple of fixes could be:
1) modify airbox so t.body is moved further foward, on the end of a short length of pipe for example.
2) Try and increase the flow rate or duty cycle on that injector to correct the air/ fuel ratio
3) Make some kind of turning vane within the airbox to even out the airflow.

Best of Luck

Matt