Symbol performance 102mm intake an throttle body on stock ls1
09-09-2015, 05:58 PM
#42
Well it seems like the fast 102 with throttle body and fuel rails is the way to go if I want to be set up for the long run the best price I can find is 1500 for everything what do you guys think
09-11-2015, 06:53 AM
#46
I talked to speed engineering they sell most in takes they suggested me searching for a used fast 90 or 92mm intake an tb that way I'm set up for down the road if I decide to do heads an cam my intake will be still more than enough do you agree with this?
09-14-2015, 10:44 PM
#48
Should I buy a used fast 90 mm?? I can buy a used fast 90 for 550 shipped an then buy a new throttle body nick williams 92 for $350. But right now ws6 store is running a deal 92 fast with nick williams 92 tb for $1150 ..... I need advise guys what should I do
09-15-2015, 08:36 AM
#53
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If you're scraping up money to do this, then go ebay. If you want a warranty or some sort of guarantee on the parts, go WS6 store. Depends on your priorities
09-15-2015, 07:42 PM
#55
90 and a 92 are the same intake internally. the 90 is just 2mm small i.e no hp difference. if you really want to step up to a better built intake that yields more power the 102 is it. but theres nothing wrong with what you chose either the 90 or 92 will work great
09-15-2015, 07:59 PM
#56
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Ls6\truck maf. Basically the same thing. Just need an adaptor harness. It helps you get full potential out of a fast intake.
I just replaced mine. You may have to do a little plumbing to make it work but I was able to stretch the boots over it
I just replaced mine. You may have to do a little plumbing to make it work but I was able to stretch the boots over it
09-20-2015, 06:51 PM
#57
You could always try the TPIS 90mm ls6 mod. If you have an ls6 intake, send it in and for $350 they will remove the 78mm inlet and attach a 90mm 4 bolt ls2 inlet. The LS6 intake flows great, its biggest limiter in the small 78mm inlet. With this mod alone the ls6 will match or exceed a (non ported) FAST 90.
09-21-2015, 09:38 AM
#58
You could always try the TPIS 90mm ls6 mod. If you have an ls6 intake, send it in and for $350 they will remove the 78mm inlet and attach a 90mm 4 bolt ls2 inlet. The LS6 intake flows great, its biggest limiter in the small 78mm inlet. With this mod alone the ls6 will match or exceed a (non ported) FAST 90.
09-21-2015, 10:48 AM
#59
Information in this thread is all over the place.
Fast 90 is the oldest version of the large mouth intake. It was made alongside the FAST 78mm and they share the same runner design but the upper shell has a 90mm flange. It uses a factory fuel rail and injector type.
Fast 92 is the revised version of the 90mm. Changes the MAP sensor mounting and some changes to the runners were made. It might make slightly more power at some parts of the curve than the 90mm but not enough to be overly concerned with. Also uses stock type rail and injectors. It was discontinued and replaced with the FAST 102 LSXR intake, but due to demand they brought it back in a black finish. (original was gray plastic)
Fast 102 LSXR is the most potent and can use a 102mm or 92mm throttle body. Requires newer style fuel rail but I'm not sure on injector type. Even on a stock ls1 this will net the most gains but they seem to be more difficult to tune with the 102mm throttle body.
Does TPIS even still do snout conversions? They most certainly will not exceed a Fast intake. I'm not even sure they would match a Fast 78mm (which is a damn good bang for buck if you can find one and uses the stock throttle body to further reduce the costs).
The Fast intakes make their power in the plenum volume and runner design more than the snout size. By the time you figure $350-400 for an LS6 intake if he doesn't have one and $350 for the conversion you are already at or over the price of the Fast.
I would look at the Dorman intake with some minor porting well before looking at the TPIS if they even still do them.
Fast 90 is the oldest version of the large mouth intake. It was made alongside the FAST 78mm and they share the same runner design but the upper shell has a 90mm flange. It uses a factory fuel rail and injector type.
Fast 92 is the revised version of the 90mm. Changes the MAP sensor mounting and some changes to the runners were made. It might make slightly more power at some parts of the curve than the 90mm but not enough to be overly concerned with. Also uses stock type rail and injectors. It was discontinued and replaced with the FAST 102 LSXR intake, but due to demand they brought it back in a black finish. (original was gray plastic)
Fast 102 LSXR is the most potent and can use a 102mm or 92mm throttle body. Requires newer style fuel rail but I'm not sure on injector type. Even on a stock ls1 this will net the most gains but they seem to be more difficult to tune with the 102mm throttle body.
Does TPIS even still do snout conversions? They most certainly will not exceed a Fast intake. I'm not even sure they would match a Fast 78mm (which is a damn good bang for buck if you can find one and uses the stock throttle body to further reduce the costs).
The Fast intakes make their power in the plenum volume and runner design more than the snout size. By the time you figure $350-400 for an LS6 intake if he doesn't have one and $350 for the conversion you are already at or over the price of the Fast.
I would look at the Dorman intake with some minor porting well before looking at the TPIS if they even still do them.
09-21-2015, 12:25 PM
#60
Fast 102 LSXR is the most potent and can use a 102mm or 92mm throttle body. Requires newer style fuel rail but I'm not sure on injector type. Even on a stock ls1 this will net the most gains but they seem to be more difficult to tune with the 102mm throttle body.