what are ppl's thoughts on FI on the ls series of motors? the pro's and con's to either centrifugal,roots type superchargers or the twin turbo set uo from either Genn TT or APS?
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forced induction...... blower or turbo
Started by KLR57, Apr 16 2009 06:51 PM
63 replies to this topic
#2
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Posted 16 April 2009 - 07:02 PM
I believe Paul prefers the turbos on his Monaro. I think he has the GenTT turbos. It's a pretty cool thing.
Turbos are great because you're using waste energy to create more power but also get extremely hot extremely quick when under constant load creating a lot of under bonnet heat. Not usually a big problem. Depends on application I guess and set up.
Turbos are great because you're using waste energy to create more power but also get extremely hot extremely quick when under constant load creating a lot of under bonnet heat. Not usually a big problem. Depends on application I guess and set up.
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Posted 16 April 2009 - 07:44 PM
Application specific for sure, ROOTS blower is for BLING period
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#4
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Posted 16 April 2009 - 09:13 PM
FI is great on the LS series engines,even with 10:1+ comp.
As Brinks says "Application specific for sure"
What do you want to use the car for?
As Brinks says "Application specific for sure"
What do you want to use the car for?
#5
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Posted 16 April 2009 - 09:27 PM
The APS looks like quality with a capital "Q".
Drive in/drive away Horsepower Factory $14 odd grand for the full APS kit - http://www.airpowersystems.com/ls1/us_gto.htm
I agree with choosing the right thing for your application.....
Please feel free to add to/argue these....
Centrifugal
Pro's-
Easy to install, maintain close to stock under bonnet temps, simply change your boost with a pulley, keep your full existing exhaust system (if suitable obviously), some come with self contained oil system (no need to tap into feed or sump for return)
Con's-
Takes power to drive, put's load on the crank snout, not easily hidden from view with the bonnet up, lack of flexibility in mounting positions (ie. inline with the crank pulley obviously)
Turbo's
Pro's-
Easy boost control, flexible mounting options (can be hidden from view ala APS kit), use "free" pressure and heat energy to make boost,
Con's-
Retain underbonnet heat (in most cases), modifications to exhaust system needed, have no self contained oil system (unless custom made),
Anything else?
Drive in/drive away Horsepower Factory $14 odd grand for the full APS kit - http://www.airpowersystems.com/ls1/us_gto.htm
I agree with choosing the right thing for your application.....
Please feel free to add to/argue these....
Centrifugal
Pro's-
Easy to install, maintain close to stock under bonnet temps, simply change your boost with a pulley, keep your full existing exhaust system (if suitable obviously), some come with self contained oil system (no need to tap into feed or sump for return)
Con's-
Takes power to drive, put's load on the crank snout, not easily hidden from view with the bonnet up, lack of flexibility in mounting positions (ie. inline with the crank pulley obviously)
Turbo's
Pro's-
Easy boost control, flexible mounting options (can be hidden from view ala APS kit), use "free" pressure and heat energy to make boost,
Con's-
Retain underbonnet heat (in most cases), modifications to exhaust system needed, have no self contained oil system (unless custom made),
Anything else?
Edited by VT-565, 16 April 2009 - 09:29 PM.
Hmmm.
I can smell.......stupidity.
I can smell.......stupidity.
#6
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Posted 16 April 2009 - 10:04 PM
QUOTE (VT-565 @ Apr 16 2009, 09:27 PM) <{POST_SNAPBACK}>
The APS looks like quality with a capital "Q".
Drive in/drive away Horsepower Factory $14 odd grand for the full APS kit - http://www.airpowersystems.com/ls1/us_gto.htm
Drive in/drive away Horsepower Factory $14 odd grand for the full APS kit - http://www.airpowersystems.com/ls1/us_gto.htm
SVS quoted a mate about 20ish grand all up for the APS kit and a few other goodies, pretty sure that came with installation as well.
so pretty good for the numbers aimed for.
Edited by Falconxf88, 16 April 2009 - 10:05 PM.
Fabz, on 27 April 2010 - 11:01 PM, said:
I bet its a VP V10 blown twin over head dick fingerers with full drag spec drive line ans supersonic windscreen wipers. Be sure to check under the seat for some pirate gold as i hear these cars are THAT rare.
Quote
shut the f**K up. i dont care. ACA, 60 minutes, today tonight, i f**king hate you all so much i hope you die some kind of firey hell in the anus of the devil you pack of c**ts.
#7
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Posted 16 April 2009 - 10:51 PM
Hmmm.
I can smell.......stupidity.
I can smell.......stupidity.
#8
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Posted 16 April 2009 - 11:34 PM
People don't shop around...? 
For a street car in your case, you cant go past a turbocharger... single or twin. Very smooth. Punch above their weight. And often tend to be quicker then their belt driven counter parts. Plus they can be made to be VERY unassuming.
Not a big fan of centrifugals to be honest. I figure if your going to supercharge it, do it properly... Big displacement whipple! Can't beat that sound. But they're "challenging" to drive given their power delivery. LOL! Instantaneous torque!
Just my 2cents...
For a street car in your case, you cant go past a turbocharger... single or twin. Very smooth. Punch above their weight. And often tend to be quicker then their belt driven counter parts. Plus they can be made to be VERY unassuming.
Not a big fan of centrifugals to be honest. I figure if your going to supercharge it, do it properly... Big displacement whipple! Can't beat that sound. But they're "challenging" to drive given their power delivery. LOL! Instantaneous torque!
Just my 2cents...
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#9
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Posted 17 April 2009 - 05:15 AM
after trying both Dan l would go with the turbos
#10
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Posted 17 April 2009 - 06:24 AM
the reason i ask is im tryin to work out the best or close enough setup for a track/targa car. which the clubby is in the process of being built for.leigh holman quoted me a drive in drive out price of $14,500 for aps kit. and bout the same for the eaton m122 blower.
#11
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Posted 17 April 2009 - 06:59 AM
go for the power curve yr after
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#12
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Posted 17 April 2009 - 11:50 AM
i have been talking with a very reputable engine builder down south about my motor and he is recommending a large single turbo.
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Posted 17 April 2009 - 12:08 PM
in the end u need to know what power u are chasing and how drivable u want it if it is still going to b a streeter....
if u want something punchy as but still has a top end pull ask leigh to take u for a burn in "the kid"..
it has the full aps kit and it gets up and boogies pretty hardcore
in saying that i seen a white ve maloo a little while ago while working with a full harrop blower setup uses the whipple blower and a full zorst and was making huge power on the 6 litre....
but yeah... depends what kinda power and torque curve u want and if u want instant power or something that ramps up to the given power u want......
if u want something punchy as but still has a top end pull ask leigh to take u for a burn in "the kid"..
it has the full aps kit and it gets up and boogies pretty hardcore
in saying that i seen a white ve maloo a little while ago while working with a full harrop blower setup uses the whipple blower and a full zorst and was making huge power on the 6 litre....
but yeah... depends what kinda power and torque curve u want and if u want instant power or something that ramps up to the given power u want......
The Subaru Impreza is the Automotive equivalent of a decent prostitute.......They perform well, provide a good/thrilling ride but every f*ckers been there and done it already...
I don't like being told what to do, and when some aluminium cased box of gears and friction plates tells me that it's time to change up, I really get pissed off. I will decide when it's time to change gears and sometimes I'm right. So the old smarty-pants automatic transmission isn't my best friend
I don't like being told what to do, and when some aluminium cased box of gears and friction plates tells me that it's time to change up, I really get pissed off. I will decide when it's time to change gears and sometimes I'm right. So the old smarty-pants automatic transmission isn't my best friend
#14
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Posted 17 April 2009 - 01:08 PM
i read single turbo are usally closed loop, whereas twins can be tuned as open. someone correct me or confirm this.
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#15
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Posted 17 April 2009 - 01:54 PM
build a big stroker for it
Imports...... like taking a knife to a gun fight...
#16
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Posted 17 April 2009 - 03:34 PM
the car is being built to compete in targa rallies and sprints/hillclimbs. so just gettin ideas. saw svs today and the aps kit is 15g intalled, tuned. round 600rwhp.
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Posted 17 April 2009 - 04:11 PM
I've got a big single turbo on my ute and am very happy with the results, it is perfect for on road use and has decent manners but once you hit 3000rpm it really comes into its own. Also good to see some realistic prices being put out there for the turbo kits because to get quality with the outcomes your after is not cheap!!
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#18
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Posted 17 April 2009 - 04:26 PM
I saw an LS2 with a Centrifugal Supercharger feeding a Positive Displacement Supercharger. Good for a lazy 1000HP. 
EL_661, on Jan 6 2009, 04:25 PM, said:
As Matti would say. This can only be decided by..... PISTOLS AT DAWN!
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Posted 17 April 2009 - 05:19 PM
QUOTE (caprice @ Apr 17 2009, 05:09 PM) <{POST_SNAPBACK}>
didnt u have a TT caprice? or have i got the wrong person?
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