spool of a gt42r on built gsr borred to 84.5mm
04-18-2007, 06:20 PM
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spool of a gt42r on built gsr borred to 84.5mm
What would the 42r spool at on a built gsr with 84.5 mm bore and matched bore combustion chambers. It is built with darton MIR sleeves, cp pistons, crower rods, crower valve train with ti retainers, dual springs and 1mm oversized valves, gsr cams, etc. tuned with AEM. And would this turbo be a good choice?? I am looking for a minimum of 800-850 whp. I am open to suggestions also if anyone can think of a better turbo to achieve these power goals without nitrous.
04-18-2007, 06:49 PM
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Re: spool of a gt42r on built gsr borred to 84.5mm (uglyasscivic)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by uglyasscivic »</TD></TR><TR><TD CLASS="quote">What manifold are you using?</TD></TR></TABLE>
DP, and other peices of kit? this all means something when talking spool times
DP, and other peices of kit? this all means something when talking spool times
04-18-2007, 06:55 PM
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Re: spool of a gt42r on built gsr borred to 84.5mm (b20vrex)
I have tested manifolds with 4 inch downpipe and have seen huge differences in spool time because of only manifold design. He said a 42r so i knew 4 inch was the only option.
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04-18-2007, 08:09 PM
#8
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Re: spool of a gt42r on built gsr borred to 84.5mm (tony1)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tony1 »</TD></TR><TR><TD CLASS="quote">Blah, exhaust manifolds are all the same. 
</TD></TR></TABLE>
definatly.
</TD></TR></TABLE>definatly.
04-18-2007, 09:03 PM
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Re: spool of a gt42r on built gsr borred to 84.5mm (tony1)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tony1 »</TD></TR><TR><TD CLASS="quote">Blah, exhaust manifolds are all the same. </TD></TR></TABLE>
yeah, just get a one-fab and you will be good to go
</TD></TR></TABLE>yeah, just get a one-fab and you will be good to go
04-18-2007, 09:11 PM
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Re: spool of a gt42r on built gsr borred to 84.5mm (miller)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by miller »</TD></TR><TR><TD CLASS="quote">
yeah, just get a one-fab and you will be good to go </TD></TR></TABLE>
i got a one fab, no sarcasim... havent used it yet, but we'll see what happends
yeah, just get a one-fab and you will be good to go
</TD></TR></TABLE>i got a one fab, no sarcasim... havent used it yet, but we'll see what happends
04-18-2007, 09:42 PM
#11
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Re: spool of a gt42r on built gsr borred to 84.5mm (b20vrex)
anybody else done any testing on different exhaust housings?
i just switched from a 1.01 to a 1.15. slightly later spool time, but seemed to hold power at high revs much better. unfortunatly i didnt get to make any 40 psi pulls to see if power up there was any differnt. i guess we will see this weekend at the track hopefully.
who's doing the cylinder head on this car your shooting for 800-850 on?
i just switched from a 1.01 to a 1.15. slightly later spool time, but seemed to hold power at high revs much better. unfortunatly i didnt get to make any 40 psi pulls to see if power up there was any differnt. i guess we will see this weekend at the track hopefully.
who's doing the cylinder head on this car your shooting for 800-850 on?
04-19-2007, 06:56 AM
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Re: spool of a gt42r on built gsr borred to 84.5mm (uglyasscivic)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by uglyasscivic »</TD></TR><TR><TD CLASS="quote">I have tested manifolds with 4 inch downpipe and have seen huge differences in spool time because of only manifold design. He said a 42r so i knew 4 inch was the only option.</TD></TR></TABLE>
Could you elaborate on the details of your observations on these huge differences in spool times with different manifold designs?
Could you elaborate on the details of your observations on these huge differences in spool times with different manifold designs?
04-19-2007, 12:24 PM
#13
Re: spool of a gt42r on built gsr borred to 84.5mm (Turbo-charged)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Turbo-charged »</TD></TR><TR><TD CLASS="quote">
who's doing the cylinder head on this car your shooting for 800-850 on?</TD></TR></TABLE>
that "Portflow" guy from the East coast
who's doing the cylinder head on this car your shooting for 800-850 on?</TD></TR></TABLE>
that "Portflow" guy from the East coast
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