The Twincharged RL

[RL-2005]

do you run separate boost gauges for the Sc and the Turbo? or measure just the combined overall peak boost your seeing, i read an article about twincharging in a magazine about 9 months ago and they explain how to calculate the combined overall boost, as it is not as simple as:

12psi for the blower + 20 psi for the turbo= 32 psi

you seem to know your shit so im sure you have some ideas about all this, please educate the rest of us.

[goofyguy]

Originally Posted by RL-2005

do you run separate boost gauges for the Sc and the Turbo? or measure just the combined overall peak boost your seeing, i read an article about twincharging in a magazine about 9 months ago and they explain how to calculate the combined overall boost, as it is not as simple as:

12psi for the blower + 20 psi for the turbo= 32 psi

you seem to know your shit so im sure you have some ideas about all this, please educate the rest of us.

I think your overthinking this a bit too much. His 23psi is most likely manifold pressure. Heres a few things to put into perspective. First the Turbo is first in the air pressure loop now not the supercharger. So the air is being crammed into the supercharger. Second the engine wont handle 30 psi stock. Next the supercharger help spool the turbo by both creating pressure on the inlet under low throttle as well as pressure on the exhaust side when its boosting. I imagine the supercharger is only being used under full throttle for a second before the turbo is ready.

[WickedSS2005]

This is amazing news! Looks like my wife is gonna lose we car cause this is more important LOL. J/K guys. I would love to have this, but being as there are more important things for me to spend money on, all I can do is offer up a "Good Luck and have fun!"........damn schooling costs to be a dentist (her) and pharmacist(me).....argh.

[Sp00ner]

Originally Posted by matt

Why? Becuase with the time and money spent to convert everything you could invet the money into engine performance and have one badass Red Line. I doubt anyone here has the skill and knowhow to pull off something like this. Just to get an idea of how much of a pain in the ass it woukd be to pull off, did any of you all happen to catch Rides on TLC the other night where Unique Performance and Year One convereted HHRs to RWD? If so, you can see it's something not many people could pull off unless you have lots of money to pay someone like them to do the job, or have very good fabricating and mechanical knowledge. So if one has money coming out their ass and plans on dropping in a LS2, yeah that would be a good idea, but the average ower is not even going to attempt something this outrageous.

How is going to rear wheel drive going to make it any faster? There's more drivetrain loss on a RWD car than there is a FWD car. Sure with a RWD you can get off the line quicker, if you can drive good, but FWDs can be quick off the line with a good set of tires and good driving.


Anyways, enough of the RWD crap more twincharge info.

Ok, that's true, in terms of cost vs. benefit. No disagreement there, but there's nothing wrong with the idea of it to me. The extra 5% drivetrain loss would be more than made up for, in handling and acceleration. The cost would be stupid though.

[RL-2005]

Originally Posted by goofyguy

I think your overthinking this a bit too much. His 23psi is most likely manifold pressure. Heres a few things to put into perspective. First the Turbo is first in the air pressure loop now not the supercharger. So the air is being crammed into the supercharger. Second the engine wont handle 30 psi stock. Next the supercharger help spool the turbo by both creating pressure on the inlet under low throttle as well as pressure on the exhaust side when its boosting. I imagine the supercharger is only being used under full throttle for a second before the turbo is ready.

i'm not over thinking it, im just asking him where he has tapped the vacuum lines. Also i must have missed where he said he hit 23 psi, but that was one of my questions also. I think the supercharger will continue adding to the boost throughout the powerband, but it will become less and less efficient as the turbo builds more and more boost.

so by redline the sc is only contributing a small amount of the 23 psi, maybe 3-5 psi (just a guess) but yeah it helps alot during the spool up period. If it were me i would select the turbo to have alot of lag and be capable of low to moderate boost (15-20 psi) because during low rpms you have the SC. Normally i like the quick spooling, full-boost-earlier idea but throw the blower into the mix and i'd love to have a turbo that really only spooled when i was drving really hard, not just commuting or going to the grocery store.

[NGalaxyTimmyo]

Originally Posted by RL-2005

so by redline the sc is only contributing a small amount of the 23 psi, maybe 3-5 psi (just a guess) but yeah it helps alot during the spool up period. If it were me i would select the turbo to have alot of lag and be capable of low to moderate boost (15-20 psi) because during low rpms you have the SC. Normally i like the quick spooling, full-boost-earlier idea but throw the blower into the mix and i'd love to have a turbo that really only spooled when i was drving really hard, not just commuting or going to the grocery store.

haha, yea, just stick a huge fricken turbo there with lots of power and lots of lag!
Anyways, thats what I thought you did with such a system. Because of the blower the Turbo is sized much larger then you would without the blower.

[Schizzo97SC2]

Just to let you guys know, this thread is all over the other boards haha.

definitely looking awesome though, Tek has already started planning out payments for this LOL

this is a leap in the right direction, most definitely.

[Freakazoid]

Originally Posted by Schizzo97SC2

Just to let you guys know, this thread is all over the other boards haha.

I believe it, this availability will put the RL/SS on the map for sure when we can start taking stis/evos, should get a bit of respect for the car.

[dacoolist]

Nice Job on the TC! It's to much power for me; I still owe 6500 on this beaste as is (just one more year). I hope you make a buttload on it though and put our car on da MAP!

[korax123]

How come this thread died???