Deuce
Super Stock
- Joined
- Feb 5, 2012
- Messages
- 4,456
- Reaction score
- 4,668
- Points
- 113
- Location
- Snobs Rock (or so the locals say)
- Members Ride
- '94 VR SS V8
Please provide more sources as offered, but please use GM HOLDEN 308/304 or even 355" in your source.Obviously I could give you many soruces of info but you'll keep brining up your info that I debunked and not listen..
90% of engines, but not a General Motors Holden V8. And that is the motor we need to know about.If you actualy watch Richards videos you'll realise he's tested 90% of engines out there in the performance world he even broke a land speed record with a honda 4cyl.
Yes - the rule is shorter runners promote higher HP, and longer runners promote higher Torque early in the rpm range. Simple stuff.
But air also likes straight lines at speed (or as straight as possible - hence why tunnel ram is awesome, straight, long, and plenum).
Should I recommend a high rise manifold to get runner length? Of course not, because they generally have larger cross section runners which would slow velocity and hurt low end torque, and they are also highly unlikely to fit under his bonnet.
My original recommendation was a small size single plane manifold. Because:
- fits under bonnet (OP please check before purchase)
- runners are not large
- runners are as straight as possible
- OP has decent compression so should find torque a plenty everywhere in the usable rev range