i know most people recommend using the minram with a 406.my question is instead of going with a 230+ dur.cam and 240+cfm heads what do you guys think of a 9to1 406 with tf23* heads and an extrude honed superram with an ati procharger?To forcefeed this engine the airflow that the LTR setup just cant give it @6000rpm's.sold my car thursday looking for new one.also what do you guys think i should go with an 89-89 MAF(iroc 350)or the 90-92 SD 350's with the above mentioned combo.it will be an auto with 3.45 gears.thanx for all your sugg.

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87 trans am,gm crate 350(4 bolt mains 10to1),L98 aluminum heads,LT4 hot cam,slp runners,slp 1 5/8 headers,3in.y-pipe,edelbrock base,hi flo cat,air foil,afpr,as&m ported plenum,gutted airbox,t-5 tranny w/centerforce clutch and a 3.27 9bolt(11.9in. brakes),ed wright's fastchip,relocated iat sensor,160 fan switch&t-stat,tb bypass,accel supercoil,cap& rotor,slp 3in. catbcak,a/c delete.

SHE IS GONE BUT I KNOW THE GUY WILL GIVE HER A GOOD HOME.

best e/t:
3653lbs./full tank+ driver.
14.10@96.53mph 2.01 60'

 

Might as well go SD, any (except the most mild of 406s) will max the MAF and force you to convert to SD anyway.

Also, while there is not a "boost friendly" version of an SD eprom available, you can "fudge it" to make it work with a 2 BAR Map. But until someone develops a "boost friendly" 2 BAR SD eprom, you can always consider converting the ECM to a 7749 Syclone/Typhoon ECM. It is a derivative of the SD's 7730.

 

wasnt the 7749 ecm a maf controlled system also?if not how hard would it be to convert that ecm to cotrol that big cubed motor,and what has to be done other than prom work(harness connections,relays etc.)and by going the custom ecm/prom route do you still need the fmu?just thinking about cluttering the engine bay.also is there any way to pass emissions using an older air pump(85-86)one that isn't controlled electronically and just deleting the smog box and just tweaking the a/f ratio to get it down to a respectable level?and what do you think of the superram idea?thanx for letting me pick your brains

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87 trans am,gm crate 350(4 bolt mains 10to1),L98 aluminum heads,LT4 hot cam,slp runners,slp 1 5/8 headers,3in.y-pipe,edelbrock base,hi flo cat,air foil,afpr,as&m ported plenum,gutted airbox,t-5 tranny w/centerforce clutch and a 3.27 9bolt(11.9in. brakes),ed wright's fastchip,relocated iat sensor,160 fan switch&t-stat,tb bypass,accel supercoil,cap& rotor,slp 3in. catbcak,a/c delete.

SHE IS GONE BUT I KNOW THE GUY WILL GIVE HER A GOOD HOME.

best e/t:
3653lbs./full tank+ driver.
14.10@96.53mph 2.01 60'

 

I know you will probably have a hell of a time getting an SR to seal against the boost of a supercharger. I have been through hell and back getting mine to seal up and it's N/A.



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Dan
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87 IROC-Z, 6.7 $uperram & cam, Eagle 5.7" rods, Dart 200cc Iron Eagle heads, auto w/ BTE 3000stall lockup, 3.27, leather, !cat, Holley fpr, K&N'S, SLP 1-3/4" headers, Edelbrock lower intake, Holley 52mm tb, Dynomax\Flowmaster catback.
1987 Camaro Z28 - 5.2tpi, auto, 3.73s, ram air, airfoil, ported plenum, !cat, !tbcoolant, !smog, !4th gear - FOR SALE