SMG's first...REMOTE MOUNT TURBO TWINCHARGED LSJ!!!
12-25-2009, 08:46 AM
#156
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the car is running on 16.6 psi the bypass valve has not been opened yet on the super charger so the 7psi from the turbo is being compounded by the supercharger still. the supercharger is making just under 10psi with the stock 3.35 pully on it we will eventually be opening up the bypass.
we will be upping the waste gate spring very soon and right around that time we will be playing with the bypass valve once we decide what spring we would like to play with next
we will be upping the waste gate spring very soon and right around that time we will be playing with the bypass valve once we decide what spring we would like to play with next
Last edited by gamergenesis; 12-25-2009 at 08:46 AM. Reason: Automerged Doublepost
12-28-2009, 12:16 AM
#157
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I want this set up! I think I would leave the intake outside the car, with a hydro shield or debris shield to protect it. Also some sort of shield for the turbo
12-29-2009, 03:35 AM
#160
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I would really like to explore how to mate this with my tvs. I know all of the talk with it not being reasonable, but I already have the tvs, plus I have the bates sleeves being installed in my block right now. If the boost is compounded, then I could make even more use of the sleeves installed. No one would ever expect that though.
12-29-2009, 04:00 AM
#161
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^^ agreed i have a tvs and im rebuilding my motor now.. my original goal was like scythes to get 400whp out of it but im sure this would put me well past that 
how is your build coming schythe? were you still going for the 400whp with the tvs?
how is your build coming schythe? were you still going for the 400whp with the tvs?
12-29-2009, 04:26 AM
#162
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Yep. That's still the goal. I got the essential parts I need now. I'm kind of on the fence with the gmr cams I got in hand because of them needing solid lifters to be installed. But the boost will definitely be there, I'm looking for somewhere around 30 psi. I just think that a twincharged build having a tvs supplying a larger turbo with the needed airflow would pretty much kill the lag issues with a bigger turbo, and produce numbers off the charts.
I think it would come down to where the turbo would need to come on. The tvs produces around 20 psi around 4500 rpm on a 2.95 sized pulley. My thinking is that is proper airflow could be on hand from around 4k rpm, the turbo would take off, and the powerband for the turbo would take account for 3k rpm at least. Even if the boost was controlled by rpm in different gears, it would still be a ridiculously strong build that no one would expect.
Someone correct me if my thinking is off.
I think it would come down to where the turbo would need to come on. The tvs produces around 20 psi around 4500 rpm on a 2.95 sized pulley. My thinking is that is proper airflow could be on hand from around 4k rpm, the turbo would take off, and the powerband for the turbo would take account for 3k rpm at least. Even if the boost was controlled by rpm in different gears, it would still be a ridiculously strong build that no one would expect.
Someone correct me if my thinking is off.
12-29-2009, 04:50 AM
#163
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My thinking is that is proper airflow could be on hand from around 4k rpm, the turbo would take off, and the powerband for the turbo would take account for 3k rpm at least. Even if the boost was controlled by rpm in different gears, it would still be a ridiculously strong build that no one would expect.
12-29-2009, 05:12 AM
#164
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Let's say if you were using hptuners, you can control the redline for the first gear, and then for the other gears collectively. I know for the hennessey viper, they have the boost controller modify how much boost is being made use of depending on what gear the transmission is in. You can't make any use of 1000 whp in first gear, so they modify the boost level to increase as you go through the gears. It helps to control wheelspin to a degree. My idea is just another way to look at things.
12-29-2009, 05:33 AM
#165
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I'm yet another TVS guy that would definatley be intrested in finding out if this is possible. The combination would be killer if someone could figure out how to do it right. I'd like SMG to chime in on this. I remember ZZP use to advertise thier twin charge with a TVS but I have never heard of anyone doing it or how/if it would work.
I'm intrested.
I'm intrested.
12-29-2009, 05:59 AM
#169
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You're going to drop to a 2.5? Oh man, aren't you worried about belt slip and heat? If I ran a 2.5 I would probably buy a killer chiller. Did you decide to sleeve your engine for the hell of it or did it get f'ed up?
12-29-2009, 06:07 AM
#170
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It did the first time after I put some forged pistons in it because of me trusting the wrong person to do the build in my absence, and the jbody vortex header.
There will be no mistakes this time.
There will be no mistakes this time.
12-29-2009, 06:17 AM
#172
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Oh no, I definitely blew my engine the **** up. Cylinder no. 2 has a crack in the form of a 'W' that extends two inches from the top of the sleeve. It took out the sleeve, cylinder wall, and the block itself when it finally gave out. It was due to the severely inefficient properties of the vortex header, causing a crack that wasn't seen when the block was magnafluxed the first time. The added stress from the tvs was what exposed the deficiency caused by it.
Considering I was over 320 at the wheel, I'm expecting about 360 when I get down to the 2.75. I don't know how the timing and pulley size are going to be working against each other, but I got to 24* timing with a vibrant header/dp, and a 3" exhaust. I think that 400 will be quite reasonable.
I have mods set in place already to deal with heatsoak, and belt slip is a minor issue. As tight as the stage 2 belt is around the pulley now, it won't slip like most think.
Considering I was over 320 at the wheel, I'm expecting about 360 when I get down to the 2.75. I don't know how the timing and pulley size are going to be working against each other, but I got to 24* timing with a vibrant header/dp, and a 3" exhaust. I think that 400 will be quite reasonable.
I have mods set in place already to deal with heatsoak, and belt slip is a minor issue. As tight as the stage 2 belt is around the pulley now, it won't slip like most think.
12-29-2009, 06:20 AM
#173
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Looking forward to hearing about it when its done.
On another note. I'm still really interested in knowing how/if a TVS can work efficently with turbo in a twin charge build. I might throw up a thread on this. I'd like to hear about the possibilities from soneone that knows thier ****.
On another note. I'm still really interested in knowing how/if a TVS can work efficently with turbo in a twin charge build. I might throw up a thread on this. I'd like to hear about the possibilities from soneone that knows thier ****.
12-29-2009, 11:15 AM
#175
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So lets say the setup opens the bypass valve past 3300rpms or so, then the air is going straight into the motor and the super is no longer being used correct? How about putting a clutch on the supercharger pulley so it's not robbing power after 3300 rpms?