andy-lswon

iTrader: (1)

98 z28 a4. Mods are SLP lid, 160 thermostat, Texas speed long tubes with rumble x true duals, 3.73 gear and ls6 intake. Trying to decide if I wanna port stock throttle body or send intake to tpis and get 90 mm throttle body. I know some of you will say get a Fast but that's not the answer I'm looking for. I already have the ls6 so I'm using it either way. Is a 90mm gonna help with only these mods or is it too big and gonna hurt me?

zacht

iTrader: (18)

i dont think you need a fast intake. i say port the throttle body!

save that money youd send to tpis and buy something that will help you out more...

sjsingle1

iTrader: (1)

if you are that set on wasting your money on a 90mm Ls6 intake......I can give ya my paypal addy.....i assure you i will waste it just as frivolously

andy-lswon

iTrader: (1)

How much will porting the stock help compared to a 90mm?

99Bluz28

iTrader: (35)

IMO, wait until you have a High stall TC,and H/C.
Then if you still want to go with the TPIS 90 conversion, go for it.

baxsom

iTrader: (6)

I would say that when the tuner says that the intake has ran out of air would be time to put on the larger TB. Get a ported stock throttle body for decent response.

andy-lswon

iTrader: (1)

H/c and stall are coming next year with tax money. I'll just prolly have mine ported til then