Wreck to Race.

[Peter Jones]

Who would have thought I could make a stock motor with twin Dells and a TT cam!

Does kind of explain those lap times .........

The power drop off is very sudden, almost like an igntion breakdown, I'm hoping there's a simple answer in there somewhere.

There's crazy torque available it's just too low in the rpm range to be used on a track. Awesome fun to tramp mid corner though!


Pete

[GoLfMan]

i recon its your ram tube's i experienced the same problem before i changed to a ramflo... then it revved like a demon

[Preen59]

i recon its your ram tube's i experienced the same problem before i changed to a ramflo... then it revved like a demon

Can you back that up with some technical input, other than the fact that you changed the same thing and found an improvement? That doesn't make much sense to me...

[Jarred]

Preeny, he says this because, his car didn't run great at high rpm [5k] with the ram tubes, but did once he had a ram flo filter.

basing this on the ram tubes bein so close to the firewall that it's restricting air flow into the engine at 5k rpm and above. but the ramflo filter isn't as close to the firewall, hence breathes easier...

coincidental that josh car and Petes car ran outta puff at 5K rpm.

[Preen59]

Preeny, he says this because, his car didn't run great at high rpm [5k] with the ram tubes, but did once he had a ram flo filter.

basing this on the ram tubes bein so close to the firewall that it's restricting air flow into the engine at 5k rpm and above. but the ramflo filter isn't as close to the firewall, hence breathes easier...

coincidental that josh car and Petes car ran outta puff at 5K rpm.

Well thats a decent theory, however i doubt it, considering the number of MK1 golfs that run fine with large ram tubes and sock filters. I'd say it was moreso that the new filter was a bit more restrictive and therefore effectively made the mixture richer.

Generally webers won't perform well without good ram tubes as they need a good atomised mist above the throat to ensure a consistant well atomised charge enters the cylinder.

Your filters have the springs in them, right Pete?? I know it sounds silly and i don't think you would have forgotten them but i figured its worth putting the point forward.. Because if they don't it could be sucking your filters in at high RPM and choking the engine...

[Peter Jones]

Yes my filters have springs in them.

My carbs are also a lot further away from the firewall than Josh's.

Being duals my manifold is very short, Josh's single carb manifold has a lot of bends in the manifold and puts the single carb very close to the firewall.

I have 50mm tubes and there's still at least 100mm to the firewall from the top of the tubes.

Bit hard to see in any photos I have to hand but there's plenty of room between the top of the ram tube and the firewall.



I wish it were that simple.

Pete

[Peter Jones]