3 options Boost 5.7 or build and boost a 6.0 or 6.2
10-17-2005, 12:45 AM
#1
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3 options Boost 5.7 or build and boost a 6.0 or 6.2 I am going to buy a Turbo set up. Probably an STS set up with an upgraded T76 and an air boost cooler.
1. yank 346 and sell it or install it in my Z71. It only has 40k on the motor. I would then replace it with an iron forged 370 (6.2)? and some better heads.
2.Go with a forged LS2 364 and hope it holds up. I hear that iron is much better for higher boost levels. Example, the Cobra attempted to use an aluminum block but it would not stay together.
3. Boost what I have and watch it blow up by 60k miles. Kind of a waste of a good motor that would give my truck a little extra oommpphh!
What say all yall! I am knew to boost but a steadily getting a hard on for it.
1. yank 346 and sell it or install it in my Z71. It only has 40k on the motor. I would then replace it with an iron forged 370 (6.2)? and some better heads.
2.Go with a forged LS2 364 and hope it holds up. I hear that iron is much better for higher boost levels. Example, the Cobra attempted to use an aluminum block but it would not stay together.
3. Boost what I have and watch it blow up by 60k miles. Kind of a waste of a good motor that would give my truck a little extra oommpphh!
What say all yall! I am knew to boost but a steadily getting a hard on for it.
10-17-2005, 05:58 AM
#2
The aluminum block can hold plenty of boost, and if you add a bottom end girdle to it, you can run 800 to 1000 rwhp with it.
The LS2 block would be an excellent starting point for your goals.
Check out this car: http://www.exoticperformanceplus.com...Car.php?car=32
Bob
The LS2 block would be an excellent starting point for your goals.
Check out this car: http://www.exoticperformanceplus.com...Car.php?car=32
Bob
10-17-2005, 08:43 AM
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Originally Posted by MIGHTYMOUSE
how fast do you want to go
sts + 6 speed = nooooo
sts + 6 speed = nooooo
if only i would of known that before i bought mine.!!!!!
but what ever you live and learn, then rip it off your car and sell it!!!!!!
LOL
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10-17-2005, 12:03 PM
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Originally Posted by markp03
i think becuase you are limited (to a degree) to the power you came make with the turbo mounted back there...
Why is a M6 relevant?
10-17-2005, 12:55 PM
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Originally Posted by ddnspider
no not what he meant...he meant limited to power u can make with an STS kit period as theres a large debate but the majority say that front mount turbos are better than rear mounted turbo setups.
"sts + 6 speed = nooooo"
it didnot just say "rear mounted < front mounted"
10-17-2005, 01:19 PM
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Originally Posted by Steel Chicken
please explain why to those of us without a clue
He probably means that with an M6 you don't have anything to stall up against to build boost with before launching. With an A4 you can stall it up against the converter to build boost.
10-17-2005, 01:28 PM
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That is part of it the other part is everytime ya shift the turbo has to get goin again. This is a problem for every manual car with a turbo no matter where it s located butit si a much larger problem for the peopel with tehturbos mounted inteh rear. I have a front mounted turbo adn the turbo is totally spooled by 3k. People that have the STS claim usualy 3600-4k spool. If you hve to do taht in every gear it starts to hurt ya times alot. Where as a auto will kep it spooled. GL
John
John
10-17-2005, 03:31 PM
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Originally Posted by jamnut
He probably means that with an M6 you don't have anything to stall up against to build boost with before launching. With an A4 you can stall it up against the converter to build boost.
10-17-2005, 04:22 PM
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Originally Posted by 99SS-T
That is part of it the other part is everytime ya shift the turbo has to get goin again. This is a problem for every manual car with a turbo no matter where it s located butit si a much larger problem for the peopel with tehturbos mounted inteh rear. I have a front mounted turbo adn the turbo is totally spooled by 3k. People that have the STS claim usualy 3600-4k spool. If you hve to do taht in every gear it starts to hurt ya times alot. Where as a auto will kep it spooled. GL
John
John
thats a lot of messed up words 
10-17-2005, 06:29 PM
#16
You can add a stall with turbo in auto or they can be very slow to spool. You can add something called a two step to help big time any manual off the line build good boost and many manuals get fantastic 60fts even some sts cars .Also you need a blow off vavle on a manual to help things out and also things like not lifting to shift help things.
There are tons of very quick manual dsm cars with manuals running 10s easily with manuals and much smaller engines than we have. I still laugh when I see all these sts bashing posts. I have been in buddies lt1 auto and it spools pretty darn quick but does have a bit of lag off the line with 3.23 gears and stock stall. Still its no exactly slow even at 5 or so psi it hauls pretty good.
I am going front mount on my 99 trans am but if someone offered me a sts for my lt1 for a good price I would jump on it.They are too pricey new but they can and have made good power and turned great times. But off the topic.The bigger the engine usually the faster the spool up. The bigger the turbo the slower the spool but ball bearing turbos can spool faster than the old style non ball bearing types.Also you can speed up spool with a bit more compression but you may have to run less boost or use alco injection or bigger intercoolers if you go with higher compression. Also things like lighter flywheels can help spool up..less exhaust restriction can help too.
And sometimes a big of lag is good thing. Especially on the street where not many tires can hook up when the big turbo spools up and hits them.Now at the track you don't want any more lag then necessary. But again stalls and two steps on manual cars reallly help the turbo launches.
There are tons of very quick manual dsm cars with manuals running 10s easily with manuals and much smaller engines than we have. I still laugh when I see all these sts bashing posts. I have been in buddies lt1 auto and it spools pretty darn quick but does have a bit of lag off the line with 3.23 gears and stock stall. Still its no exactly slow even at 5 or so psi it hauls pretty good.
I am going front mount on my 99 trans am but if someone offered me a sts for my lt1 for a good price I would jump on it.They are too pricey new but they can and have made good power and turned great times. But off the topic.The bigger the engine usually the faster the spool up. The bigger the turbo the slower the spool but ball bearing turbos can spool faster than the old style non ball bearing types.Also you can speed up spool with a bit more compression but you may have to run less boost or use alco injection or bigger intercoolers if you go with higher compression. Also things like lighter flywheels can help spool up..less exhaust restriction can help too.
And sometimes a big of lag is good thing. Especially on the street where not many tires can hook up when the big turbo spools up and hits them.Now at the track you don't want any more lag then necessary. But again stalls and two steps on manual cars reallly help the turbo launches.
10-17-2005, 07:50 PM
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LOL! MY99TAWS6, it sounds like you are saying that the components have to be balanced to work together! My, my, novel idea! lol
But you are right on the mark! Any decent setup can be made to work together to maximize it's potential! No mount, front mount, or rear mount, it's all the same in that respect.
But you are right on the mark! Any decent setup can be made to work together to maximize it's potential! No mount, front mount, or rear mount, it's all the same in that respect.
10-17-2005, 08:20 PM
#18
i have no complaints about sts i manage a 11.20 on 8.5 psi with out a two step pulling a 1.70 sixty on full up E T,s and my MPH was around 130 and it was at a 6,500 rpm dump on a stock rear end with 373 gears 800 to 900 hp on a sts is possible im shooting for 700 to the ground on the 427 at about 10-15 psi all iron i will keep u posted