Turbo manifold design

[Libor]

Originally Posted by RICE RACING

^ These cunts know a thing or two about head jobs.

That Benetton is just ridiculous

Peter, what do you think is the cause of better midrange torque with plumbed wastegate? This thing shocked me, as it shouldn't enhance volumetric efficiency and hence airflow per cycle. It must be something related to wastegate valve position and how far its opened vs. target boost? I´m lost in this

[RICE RACING]

Originally Posted by Libor

That Benetton is just ridiculous

Peter, what do you think is the cause of better midrange torque with plumbed wastegate? This thing shocked me, as it shouldn't enhance volumetric efficiency and hence airflow per cycle. It must be something related to wastegate valve position and how far its opened vs. target boost? I´m lost in this

Yeah the BMW Benetton (Toleman IMHO) is just gag factor to the maX! its a real history lesson in making a fast turbo car.

I have not much of an idea as to why it makes more power, except that there is some complex interactions between the intake and exhaust as TTT suggests. For the street its a nice side benefit, its way WAY to fucking loud to have any turbo 13B that does not have at least two big mufflers and a WG going through the main exhaust system.

My car is very loud when its on 30psi boost! its just a pure function of the power being made, the more boost I have run the more loud it is, when I trialed it with just one muffler it was totally abhorrent and not usable on the road in any way shape of form.... anyway I know some don't care about noise etc, but to me to stay undercover it is important

[yzf-r1]

Originally Posted by RICE RACING

when I trialed it with just one muffler it was totally abhorrent and not usable on the road in any way shape of form....

No issues with the smaller IC running water?

[RICE RACING]

Originally Posted by yzf-r1

No issues with the smaller IC running water?

I have run over 34psi boost pressure on my set up & on a 20 deg Ambient day my air inlet temperature as measured in the stock location in the upper inlet manifold is less than 50 deg C in the top of 4th gear

In more normal boost settings at around 27psi its always under 45 deg C

I run water injection and an intercooler spray system it is unbelievable, lets me keep the historical aspect of my car (stock parts) but still have almost 700bhp from the engine if I choose to do so