IROC-Z_85

AS&M or SLP?

Siamesed or not?

MOW POWAH

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1985 IROC-Z, nuff said :P

PETE

iTrader: (1)

as&m are good for tourqe but f you ever get serious about upper rpm power the slp's will be easier to siamese and will result in shortenng the individual runner length creating a more usable power band

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87 trans am 350,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,t-5 tranny w/centerforce clutch and a 3.27 9bolt(11.9in. brakes),ed wright's fastchip,relocated iat sensor,tb bypass,accel supercoil,hollowed maf,slp 3in. catback,a/c delete(whole lotta room in there now)

14.10@97mph w/2.01 60'

slp catback is finally on!!!
fastchip prom is in.OH!MAN!
FLOWMASTER S.U.C.K.S

IROC-Z_85

doesn't as&m already have siamesed runners?

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1985 IROC-Z, nuff said :P

IROCZTWENTYGR8

iTrader: (1)

AS&M.

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89 RS

STILL Looking For:
87 IROC-Z28 350 TPI

IROC-Z_85

Maybe its just me...

But i can only find complete (WAY OVER PRICED) tpi systems on AS&M's site.

Anybody got a link?
or a price?

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1985 IROC-Z, nuff said :P

james_fearn

They have the sh*tiest site I have ever seen. I can't find anything on that site quickly either.


James

IROCZTWENTYGR8

iTrader: (1)

I think TPIS runners are actually the same.

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89 RS

STILL Looking For:
87 IROC-Z28 350 TPI

Kyle F

I had great Results with Upper plenum porting to match 58mm TB and SLP intake runner on a stock base. Flowing to an SLP CAM on a 355 with a 2000rpm stall converter. Made a nice power band up to 4800RPM and a nice flat torque curve. Just like SLP claims, not a huge improvement in horse power, but really helps to flatten out the torque curve and move it up a few RPM.

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89 Trans Am Turbo 3.8L All stock 43,000 miles #1053 of 1555

Past Thirdgen:
86 Trans Am w/ built 355TPI with SLP goodies and too much other stuff to List. One sweet *** car, wish I would have had a good enough Job to pay insurance on three cars so I could keep it, but for a 89 Turbo Trans Am w/ Low miles, I think I made the right choice!

Dan87IROC-Z

I think the AS&M runners are WAY over priced, same with the TPIS ones. I plan on getting the SLP siamesed ones, but I have a high RPM engine.

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1987 Chevy Camaro IROC-Z
L98 TPI 350 (5.7L)
TH 700R-4 Transmission
Borg Warner 7.75" 9 Bolt Rear End with 2.77:1 Gears.

Current Mods: LT4 HOT Cam, Comp Cams 1.52:1 Roller Rocker Arms, Edelbrock TES 1 5/8" Headers, Catco 3" High-Flow Catalytic Converter, Hooker 3" Aerochamber Cat-Back System, Transgo Shift Kit, Performance Resource Chip, Accel Ignition, K&N Filters, JET TPI Air Foil, All Free Mods, Falken ZIEX Z-Rated Tires.

Best ET: 14.32 @ 97.7mph
(corrected for elevation)

RoadRocket L98

The shorter the runner, the better.

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'89 Firebird Formula 350
L98, WS6, Red/grey, t-tops, and a 3.27:1 rear
K&N, TB bypass, no MAF screens, CAI, full Accel ignition, no cats, Hooker Supercomp shorties, Hooker 3-inch catback
ET? 14.8 @ 93mph
Also own '83 Firebird 2.8 2bbl. 155K miles.
ET? Break out the calendar!

IROC-Z_85

ONLY for hp

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1985 IROC-Z
TPI 305, 700R4 with shift kit, richmond 3.73's, auburn pro series posi, crane compucam 2030, ported plenum, gutted air boxes, all the little insignificant stuff.

Kyle F

The shorter the runner is the higher RPMS you will make power in,both Torque and Horse power. That is what the SLPs are all about, flattening out the Torque curve and allowing you to pull to the limits of the base, about 4800-5000 rpms in my opinion.

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89 Trans Am Turbo 3.8L All stock 43,000 miles #1053 of 1555

Past Thirdgen:
86 Trans Am w/ built 355TPI with SLP goodies and too much other stuff to List. One sweet *** car, wish I would have had a good enough Job to pay insurance on three cars so I could keep it, but for a 89 Turbo Trans Am w/ Low miles, I think I made the right choice!

IROC-Z_85

Slp it is

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1985 IROC-Z
TPI 305, 700R4 with shift kit, richmond 3.73's, auburn pro series posi, crane compucam 2030, ported plenum, gutted air boxes, all the little insignificant stuff.

black5.7GTA

SLP runners,a ported plenum,and an AFPR(50PSI from stock 48)really opened up my GTA's highway performance,and pulled stronger on the top end,with only a negligible loss in off idle throttle response.The engineers really did their homework,and for only $199 they can't be beat.

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1990 Trans Am GTA,Black/Black Leather,350,auto 3.23,Dual Cats,
SLP Package,Fastchip,GSC's,Brand New Trans with Corvette 2400 stall,Servo/Shift Kit
G-tech 1/4mile(before trans and roasting 1st)13.6@104,now probably 13.2@track with traction/good conditions
stock(track)14.3@96
member www.transamgta.com
Previous Thirdgen
1986 Camaro IROC-Z

IROC-Z_85

Cool, thanks for the real world experience

But everything has already been ported

Im thinking of an edelbrock base to go with the runners (slp)

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1985 IROC-Z
TPI 305, 700R4 with shift kit, richmond 3.73's, auburn pro series posi, crane compucam 2030, ported plenum, gutted air boxes, all the little insignificant stuff.

IROC-Z_85

Wait a second

$199?

where the heck did you find that price!!

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1985 IROC-Z
TPI 305, 700R4 with shift kit, richmond 3.73's, auburn pro series posi, crane compucam 2030, ported plenum, gutted air boxes, all the little insignificant stuff.

Red Devil

I actually think AS&M's site is easy to navigate...

All your L98 stuff...
http://www.azspeed-marine.com/produc.../vettel98.html



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"Question with boldness even the existence of a God; because, if there be one, he must more approve of the homage of reason, than that of blind-folded fear."

-Thomas Jefferson

IROC-Z_85

Easy to navigate doesn't drop the price