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Out of curiousity why does everyone use 2.5" on the crossover pipe

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Old 02-23-2013, 06:31 AM
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http://www.acestainless.com/butt-wel...d-els/l90-i1wn

http://www.acestainless.com/butt-wel...d-els/s90-i1wn

you could always use this...2" schedule 10 piping with its 2.15 ID which is pretty darn close to the 2.125 ID of 2.25 OD 16 gauge tubing and it is quite cheap! It is 304 stainless or 316 stainless and will be thick walls for good heat retention. The longer radius 90s are only like $8
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Old 02-23-2013, 10:50 AM
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Great info here!
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Old 02-23-2013, 07:24 PM
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1.5 inch primarys to 2 inch internal diamerter thick walled steam pipe here. spool is instant on a 346 with s475. the high compression is the key aswell.
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Old 02-24-2013, 11:53 AM
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Originally Posted by Bloodbath
1.5 inch primarys to 2 inch internal diamerter thick walled steam pipe here. spool is instant on a 346 with s475. the high compression is the key aswell.
Its a result of the all the right pieces to the combo. Any more info on the combination sounds pretty nice.
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Old 02-24-2013, 11:38 PM
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Originally Posted by Phil99vette
Its a result of the all the right pieces to the combo. Any more info on the combination sounds pretty nice.
yer i agree phil ! mines a 346 ci,10.5 comp , 30thou milled 241 heads, s475 t4 83mm turbine 1.1a/r
mid 230's cam, 600 thou lift, vic jr manifold with 4 barrell throttle body and ev hat. th400/ptc converter, 3.08 rear gear with 26 inch tire.
pump fuel and 3, 14 gph methanol injection nozzles,
fun car. hopefully put it on e85 mid year.
Last edited by Bloodbath; 02-25-2013 at 12:22 AM.
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Old 03-10-2013, 01:22 AM
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thanks Phill for the info,always tend to believe people that run the numbers and make the power. Any more books that you would suggest to read?
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Old 05-20-2013, 10:32 AM
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So would 2.25 be to small for a 370 and bws476r and a 408 with x27588 in future.
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Old 05-20-2013, 01:50 PM
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Originally Posted by damon0346
So would 2.25 be to small for a 370 and bws476r and a 408 with x27588 in future.
Not at all....
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Old 05-20-2013, 01:52 PM
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OK thanks
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Old 05-20-2013, 01:55 PM
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Believe it or not, if I ever build a x275 combo it will have either a 2" or 2 1/8" crossover on it. Mid frame 88mm
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Old 05-20-2013, 03:35 PM
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Originally Posted by Phil99vette
Believe it or not, if I ever build a x275 combo it will have either a 2" or 2 1/8" crossover on it. Mid frame 88mm
What ci would you use with that x275?
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Old 05-20-2013, 06:20 PM
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Originally Posted by 94 slow
What ci would you use with that x275?
Probably a 4" stroke and a 4" bore or in that neighborhood.
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Old 05-20-2013, 06:45 PM
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I have had to re-do my hot side 3 times because of this thread I am currently at dual 1" to T3 so please stop ok?
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Old 05-20-2013, 07:01 PM
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Informative thread.
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Old 05-20-2013, 07:27 PM
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Originally Posted by MIGHTYMOUSE
I have had to re-do my hot side 3 times because of this thread I am currently at dual 1" to T3 so please stop ok?
LOL I doubt that.
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Old 05-20-2013, 07:34 PM
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dual 2.5" to dual t4 more believable?
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Old 05-21-2013, 08:31 AM
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Are you building another car mighty?
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Old 05-21-2013, 08:45 AM
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Originally Posted by 95bowtie
Are you building another car mighty?
^^^ your old TA is a legend
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Old 05-21-2013, 02:36 PM
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He is building a "mid life crisis".
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Old 05-22-2013, 06:47 AM
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This thread makes me feel better about using 2" into a single 2.5" for my crossover.
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