fast90 or 78 mm????? please help
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From: Grand haven ,MI
ok i got screwed on the used intake i bought. so now my problem is
should i go to the 90mm fast or the 78mm.
I am just worried that being i spray it.On a 346 CI the 90mm won't have the velocity to carry the wet shot. so what is the right choice here????
tr224/114 cam,afr205's 59cc,lt's ,full custom exh.
any input would be great. this is makeing me nuts
78 or 90
what do ya think
should i go to the 90mm fast or the 78mm.
I am just worried that being i spray it.On a 346 CI the 90mm won't have the velocity to carry the wet shot. so what is the right choice here????
tr224/114 cam,afr205's 59cc,lt's ,full custom exh.
any input would be great. this is makeing me nuts
78 or 90
what do ya think
90/90 set up is hard to beat, it make good power and produces good results with those afr 205's you have. i have used 78 stuff on a all motor 346, and a s/c 383 and don't have any complaints. either one will make a good difference for you.
The runners are the same between the intakes. Only the mouth of the intake is larger on the 90.
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.

2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
Thread Starter
11 Second Club
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From: Grand haven ,MI
Originally Posted by brad8266
Just but the 90/90 now and send it out for porting at AFR is you have the extra $$.
do think it is worth it with my cam??????
and how do i do it just pm tony and send it to afr??
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Originally Posted by quick346
do think it is worth it with my cam??????
and how do i do it just pm tony and send it to afr??
and how do i do it just pm tony and send it to afr??
I'm watching that storm on radar. Looks real bad as they are forcasting 4 inches of rain in NY. Supposed to be the worst storm in 14 years for Londg Island. Get your ride up on blocks and hunker down. Where exactly are you? Good luck.
Originally Posted by 1bigcamdls6
lol dude u need to do the fast 90/90 i was puttin down 440rwhp 408rwtq WITHOUT heads cam only...i got 34rwhp from it alone on mustang dyno. WOW!!




