Prodigy Performance 3.6 Turbo DIY Install

[UselessPickles]

I want to know how RIPP system could possibly produce 40% gains in torque/power at 1800 rpm (as claimed by RIPP), when there is less than 1 psi boost at 1800 rpm (that's less than 6.8% additional air above atmospheric pressure). And if somehow that actually is correct/possibly, then why can't the turbo produce 40% gains in torque/power as low as 2200-2300 rpm, where it is generating a similar amount of boost?

I'm trying to get a response from RIPP about this. I'm hoping it was just a typo, because the claim seems ridiculous.

[KaiserBill]

I want to know how RIPP system could possibly produce 40% gains in torque/power at 1800 rpm (as claimed by RIPP), when there is less than 1 psi boost at 1800 rpm (that's less than 6.8% additional air above atmospheric pressure). And if somehow that actually is correct/possibly, then why can't the turbo produce 40% gains in torque/power as low as 2200-2300 rpm, where it is generating a similar amount of boost?

I'm trying to get a response from RIPP about this. I'm hoping it was just a typo, because the claim seems ridiculous.

Manifold pressure doesn't always correspond with actual CFM. Roots Lobe type units for example have very low Manifold pressures but extremely high CFM ratings. And you can duplicate this effect with Centrifugal units if you gear them properly. That is the reason many aircraft superchargers during WWII were actually two speed units: they used a higher speed at high altitude for cruising giving them similar performance to the low altitude lower speed setting at higher engine rpms. Some where even two speed and had a second stage on the high speed unit to give them add pressures at high altitudes that was how the Junkers Jumo 207B a 16.6 L two stroke diesel engine developed nearly sea-level performance at 40,000+ feet..

To be honest it seems like a dubious claim given the type of unit they use in the system. But it could be true. You would really need to know exactly how they have spec'd out the V3 unit from Vortech and what sort of Garrett turbo you have in your system. The big difference is going to come down to how much air each of the system is capable of putting into the cylinder head at any given Boost Rating. That was what I clumsily attempting to get at last night. What is missing is in your analysis is enough information about each system to really compare them. You have only bits and pieces of the necessary data required to perform your analysis. The really critical data points your missing have to do with volume of air flow each unit is really producing at any given boost for specific rpm. The Vortech unit could have a 50% advantage in volume compared to your unit and that will make a big difference in power. So you can graph boost points and hp points all day long without knowing the specifics about volume into the cylinder head you really cannot say that Ripp is making a false claim.


For example Whipple makes an amazing Roots-Lobe unit that does just what I'm talking about produces 50% power at 5 PSI at Idle...

http://whipplesuperchargers.com/inde...product_id=149