I finished the twin TB setup with some good and some bad results. I have a 90mm pre SC TB and a 75mm post TB using a 1-1 ratio opening. As suspected, the larger 90mm plate offers a larger cross section at every opening position and therefore provides a slight 0 to 2 lbs positive pressure...
My acura NSX is multiport EFI using a MAP sensor so yes, it's pretty insensitive to upstream events. I guess my original question was more theoretical in nature. Basically, would two throttle bodies (if designed and implemented correctly) solve the problem of sluggish, non boosted, transient...
Needs some feedback. I've got a Acura NSX with an Eaton 1900 TVS supercharger. I've recently redesigned the induction system to add a much larger intercooler (air to water). This required much longer intake ducting and since the throttle body is in front of the blower has significantly...
When designing a suspension for a class 1 vehicle with about 25" of front wheel travel I'm running into the classic compromise between camber change and track width change (I'll call it scrub although that term is typically used to describe kingpin angle to tire centerline). I'm from a road...
I don't have an opinion on pre or post turbo TB location from a performance standpoint but I sure wouldn't want to be the driver with a pre TB if the boost blows an IC or any of the other many pipes, hoses or connections between the turbo and plenum! Instant air leak and a stuck throttle like...
Mark,
Maybe the larger compressor also had a larger A/R Turbine housing therefore producing a more favorable delta/p between the compressor outlet and the turbine inlet pressure.....that would easily generate 40HP more at the same pressure ratio.......plus, it would make it much easier to...
We’re getting off the topic with all this lag talk. When I mentioned “transient” conditions I didn’t mean on-boost off-boost conditions. What I meant was the dynamics of the intake process during steady state (engine rpm) conditions. For example, if one could show for whatever reason unique...
Here’s another one for you guys. You hear all the time how an intercooler/aftercooler produces more mass flow because it increases density. I need this explained. The way I see it the Forced Induction device produces a given mass flow X at a given temperature Y. Now, pass that mass flow...
I understand that a turbo is thermally more efficient, however, my original assumption is that the blower (or even a less efficient turbo) can recover the lost density via intercooling making an apples to apples comparison more realistic. So, an environment at X temperature and Y pressure...
I'm trying to understand why some say that on the same exact engine a turbocharger which has a high flow capacity at a relatively low pressure ratio actually flows more air than a supercharger at the same boost level? I understand how it can produce more power as other variables come into play...
