mattorx7

hi i have a 2002 ls1 engine in an rx7 it has ported 853 heads, crane cam, 1.8:1 rockers, dual valve springs, tubular headers, ls6 intake and currently standard maf sensor, throttle body and ecu, it made 440.4 hp and 492 lb ft. I am planning to go with a stand alone ecu which will not use the maf sensor so my question is would i benifit from a tb change? if so which one do i go for a ported original or an aftermarket one which would be best?
Thanks
matt

VandykeT/A

I had my stocker ported. I gained some throttle response. I also have a aftermarket TB that would idle on 2500 and then slowly set back down. So I'd say port the stock one you'll probably pick up a few hp.

ULTIMATEORANGESS

iTrader: (4)

look into a FAST setup if you can AFFORD it.

MonmouthCtyLS7

iTrader: (6)

A ported stock is all you need...noticed some nice throttle response when i use to run one...you'll probably pick up 5-7 hp

mattorx7

ok thanks for the replies i will probably go for a ported original, but which fast set up would best suit my engine and what sort of gains could i expect?

garygnu

BBK make a 3 bolt TB also.

ULTIMATEORANGESS

iTrader: (4)

a 102 FAST and TB. 15-20 youll gain with a tune.

Bo White

iTrader: (59)

Ported stocker unless you can swing the FAST.

sabersaw30

iTrader: (10)

I have a bbk and I can't get my idle steady for nothing.it idles good in gear but in neutral just hunts up and down for idle.

SVThuh

iTrader: (2)

I have a BBK 80mm TB that is in perfect shape..Worked great on my LS1 making 430hp Cam only with great throttle response.

Selling for $100 cuz Im trying to buy a set of 4 pot brakes. If your interested, shoot me a PM.

SVThuh

iTrader: (2)

You need to adjust the idle screw until you get the idle where you want it within an acceptable IAC count range (probably why your car is hunting for idle is your IAC motor is counting up and down to get the idle where it needs to be). Then once you get your idle set with a decent IAC count, you need to reset your TPS sensor.