I ran my vin number and this is the engine it said i had.....can someone give me more background on this engine.....before i start doing any mods i wanna know if it will be worth it..........thanxs

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1988 Trans am.......best 600 bucks ive ever spent...305 5.0 but will save my lunch money and every penny to swap for a 350 tpi in the coming two years

 

You have the TBI engine rated at 170 HP. Go to the TBI forum and read all about it.

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West Coast GM Shootout 2001!
1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.25 @ 107.18 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-

 

Its not a bad little motor so if people put it down, don't worry about it. Everything is a trade off. As long as you do basic maintance the motor will last for 200k+ miles. Great milage. May I just say the best thing you can do off the bat is the 14X3 open element. There is some stuff in the tech fourm about it. If you have question beyond that please feel free to e-mail me.

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--Spyder--

1992 Camaro RS
LO3, T-56,centerforce clutch, ported and polished heads, Edelbrock Performer Intake, 14X3 Open Element w/ K&N, hiflow cats (and thats it), AC delete, alu drive shaft, 3.73 posi, 170 stat w/ fan switch, STB, Subframe connectors, KYB AGX, Eagle GSC, and poly bushings.

1982 Z-28
Project car, ZZ4 in the works.

 

The first choke point in that motor is the eshaust, from the heads to the street. A set of headers, a cat, and a cat-back will help it out. You won't notice a huge difference but that is the necessary first step. DON'T get the one listed for your car; do it all at once, and get the one for a 350 TPI. As a whole assembly it will bolt right up and you'll lose the weenie little Y-pipe that is one of the slimmest bttlenecks in the whole system.

The next thing is the cam. You have the puniest cam imaginable (bad) but you also have the roller system (good) so a good cam for you is the Comp 264HR.

COMPETITION CAMS CAMSHAFT SPECIFICATION SHEET

PART # 08-302-8
GRIND NUMBER: CS 264H-R12
ENGINE: CHEVY SM BLK 305-350
INTAKE EXHAUST
VALVE ADJUSTMENT HYD HYD
GROSS VALVE LIFT .480 .480
.006 TAPPET LIFT 264 274
VALVE TIMING OPEN CLOSE
AT .050 INT 3-BTDC 33 ABDC
EXH 46 BBDC 6-ATDC
THESE SPECS ARE FOR CAM INSTALLED
AT 108 INTAKE CENTER LINE
INTAKE EXHAUST
DURATION AT .050 210 220
LOBE LIFT .3200 .3200
LOBE SEPARATION 112
THIS CAM SHOULD USE SPRING # 981-16

Those 2 things will make an incredible difference in that car: probably 50-60 HP.

For starters, do all the regular maintenance, like spark plugs, cap & rotor, oil change with synthetic, rear end lube change with synthetic, cooling system service, etc. The synthetic fluids are worth measurable HP and gas mileage from reduced friction, plus they will help it live as long as possible. Once you get past the exhaust and cam your next restriction will be the heads which are major $$$ to improve. At that point it's worth looking into some other motor. The other things can be used with a TPI motor, even a 350 if you go that way.

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"So many Mustangs, so little time..."
ICON Motorsports

 

RB got it on the money

full exhaust, for a 350 tpi gave me .5 in the quarter mile (before and after Gtech, fairly consistent) youll definately feel it

aircleaner mod is great too

basically anything that involves breathing on the tbi motor needs to be changed

 

Wow, exhaust and cam, 50-60 hp. I will deffinitely be looking more into that. I am a dumbass when it comes to engine related stuff, but I am learning. I think a good PROM would help balance the new power of the cam / exhaust, and probabally increase your HP a little more. Just a thought..

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1989 305 tbi Camaro RS Red/Red
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