What is the best way to get more horsepower out of the 305 TBI??? It only has 170 and that just isn't enough. Should i just get a new engine like the 330 carborated engine for chevy. Any enough would help and if you now where you can get cheap engines let me know please. Thanks.

 

I'd say get fake horsepower..AKA..gears(not 4:10 though). They are pretty cheap and maintence free.

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-Red '88 IROC 5 Speed TPI
-Dual Friction Centerforce Clutch
-Accel 300+ Racing Ignition
-Accel 300+ Pro Sleeve Plug Wires
-Accel U-Grove Plugs
-Flowmaster Force II 3 Chamber Cat Back Exhaust
-Hypertech Chip
-Hypertech Airfoil
-Removed, Then Re-installed (out of fear) MAF Screens
-Gutted Air Box
-Best E/T 14.90, 60 ft. 2.17, 1/8th mile 9.61(bald tires, SES light on)
-Best MPH 92.7(bald tires)

 

I will say STOP and learn some more about your car and its performance. Their are many things out their you can do for your car, but before you do them learn about it first. That way you don't end up spending money on the "wrong" things.

My advice then, would be to watch the boards, learn about the "best" mods for your 305 and go from their.

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25th Anniversary Z28

 

I'll suggest a Major Tuneup as the very first mod... not only will you restore your car to it's "original running condition" (except for the mileage), but you'll learn stuff, too. Why buy improvements immediately if your engine's not running at it's best?

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Tom P's Major Tuneup Info: 3rd gen (82-92) F-body series

Here's the Major Tuneup stuff- this covers alot more than a garage would do for you, and it'll wind up to be cheaper (or at least the same price)! First, buy a Haynes 82-92 Firebird (or 82-92 Camaro) manual.. they're about $15 from any auto parts store. I like them alot better than the Chilton's manuals (which aren't what they used to be 25 years ago). And of course, the ultimate manual is the GM Service Manual, available from http://www.helminc.com - I paid about $60 for mine back in 1994.

Replace: Distributor cap/rotor, spark plug wires (use aftermarket), spark plugs, air filter (use K&N replacements), PCV valve, fuel filter, engine oil/filter, auto trans fluid/filter (or manual trans gear lube), and rear axle gear lube (use limited slip additive if required). Check and reset the timing to stock specs (in Haynes manual). Check and reset the TV cable if you have an automagic (in Haynes manual). Do a lube job and get an alignment done- the car will go faster "easier" if the front wheels are straight. Buy a can of "Intake and Throttle Body Cleaner for Fuel Injected Engines" by Gumout (yellow or gray can, with a red cap), and follow the can's instructions to clean out your intake. DO NOT USE CARB/CHOKE CLEANER- this removes the protective coating fuel injected engines have. Put a bottle of injector cleaner or my "red magic" (STP Gas Treatment) into a full tank of good gas.

It's also a good idea to replace your coolant, check your brake fluid level and p/s fluid level, check the belts, and check your brakes while you're at it.

Call Summit Racing at 800-230-3030 for a free catalog, then you can pick and choose a spark plug wire set and get your K&N air filter(s). (You can also find this stuff through their website, at http://www.summitracing.com , but it's not as thorough as the catalog.) When you leaf thru the catalog, you WON'T SEE any parts listed for a 2.8l v6 - you need to call them and ask them for part #'s/availablility. (Same goes with exhaust, etc.)

But definately do a tuneup first... you'll see the best improvment from the "fun" parts when your car is in good running condition.

-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!


[This message has been edited by TomP (edited November 01, 2000).]

 

The car only has 22,000 miles and is in top running condtion

 

DAMN!!! Just 22,000 on a '92!!! I put almost that much on my car in a year!!

I'd say that the best bet on a stock '92 RS would be to get a set of headers and a good 3" cat-back exhaust system with either a high-flow cat or no cat at all. The stock exhaust is really crappy so you'll pick up a good bit with this. Then I'd get gears...

-Mark W.
'88 SC Camaro w/ 305 TBI

 

check out the tech section for an article called ultimate TBI i think, if you haven't already done that stuff

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90 IROC 5.7l (L98)
ram air, K&N's, air foil,Flows

 

also exhaust would be a good thing too as above

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90 IROC 5.7l (L98)
ram air, K&N's, air foil,Flows

 

Heh, same here, Mark. I do a major tuneup every spring.


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-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards
---Think your car could be pic of the week? Visit http://www.f-body.net for details!

 

intake,exhust,chip

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when the green flag drops the bull$hit stops

350,performer RPM intake ,650dp, 700r4, headers, 3inch exhast

 

chip, cat back system, headers, adjustable fuel pressure regulator, cam, etc. one big thing to remember is combo. peak hp isn't all your going for. more power all the way through the band is the main thing. also getting power to the ground is another thing as well as lowering resistance. shift kit, proper gear (with locker or limited slip), running synthetic fluids, aluminum driveshaft, lighter wheels, etc. this is one of the ways the camaro makes about the same rwhp as the corvette in the new models with a much worse exhaust and airbox. lower drivetrain drag. it's the little things that can get the win sometimes without sacrifices.

 

WOW 10 post already! Hummm. My record so far is 3, and that's after 3 days. Must be asking the wrong questions.

 

Like others have said I would go for the exhaust first. A good 3" catback system will add 10 horsepower at the rear wheels. The factory y pipe on the LO3 cars is way to small even for the low displacement.

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Black 90 IROC, L98, A4, 323 gear. SuperRamed 406 in the works!

[This message has been edited by MikeH (edited November 01, 2000).]