Anyone tried 7a intake manifold on turbo car

[sandman1111]

Hello

Has anyone tried 7a intake manifold on your turbo setups. It has nice long runners (anyone knows how long?). I have to say, that I´m not a big fan of short runner manifolds.

I think the runners are too long, but that can always be fixed. Anyway the idea is that with that manifold it is possible to do some wave tuning.

Anyone tried? Hows the results?

Just a nice picture I found on the internet

[newsh]

Looks cool [emoji41]
And it's in a van?

[fish]

Looks like it could work pretty good, cool the way he just turned it around

[david1980]

It is possible that could be the same guy that had some 7a/3b bits off me a few years ago shame I lost his contact details

[sandman1111]

I didn't find much info on the project, but I think it was some old VW van, rear engined. T3?

[Kiku]

Talladega Audi 200 had very long runners. On turbo engine, intake runners are not that big of a deal how the flow goes but that will come in the game when power is getting bigger and bigger...

[sandman1111]

Yes, most of the road racing cars have long runners. I´m no expert, but I understand the theory behind that. And it is a bit surprising to me, that in here (actually almost in every car forum), everyone seems to use manifolds with short runners. People pay huge amounts of money for stuff, that in theory is not that great compared to OEM stuff that is a little modified. Sure there is not much room, but there´s plenty of project cars, where is room. Now I´m not talking purely about racing, street driving benefits a lot more from long runners. So tell my guys why everyone is running a huge plenum and short runners on their project cars. It is a bit reverse for most of the applications. Usually those runners are so short, that there isn´t even a high rpm benefit.