Alright, I've got a question. well, I guess I'll tell he story first, then ask. Alright, my friens goes out to the track yesterday for his first time. Hes got an 88 (i think) Camaro, with a 305 (about 150,000 miles), and a 5-speed...not sure about rear end gearing. For all we know...or knew, this thing is bone stock. He heads out to the track, lines up for his first run, biffs the bulb pretty bad, runs a mid 16. Next run, he hits the light fairly well, and runs a lower 16. Now on about the third run, his car decides it doesnt want to be a 305 anymore and starts pretending its a bit bigger. He lines the damn thing up, stages, nails a .510 bulb and runs a 15.5!!!! Next run, same thing, with a .600 bulb. I've got a minorly modified 5.7 GTA, and it doesnt run a whole lot faster. My question is...would a stock 305, with more than a few miles under it's belt be running mid 15's???? If so, I have a whole new respect for the 305...damn.

------------------
'87 GTA
Automatic 350 TPI
2 3/4" Flowmasters
K&N filtercharger
4 3/4" Glasstech Cowl induction hood
TPI intake air foil

System:
Panasonic DFX-99
2 12" RF DVC's
RF 250.2 (Custom
RF 200.4 Painted)
Sony 10 disc changer
Clarion Pro Audio 4x6's

 

What kind of engine is it? Carb, TBI, TPI? If its TPI, then yes 15.5 is about what it should run stock. If its Carb or TBI, then its flying for a stock car.

------------------
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=-

 

by the way, Reaction times dont matter relative to E.T.'s

 

its a TBI car. I'm glad I'm not crazy...that time just didnt sound right for a pretty tired stock motor.

------------------
'87 GTA
Automatic 350 TPI
2 3/4" Flowmasters
K&N filtercharger
4 3/4" Glasstech Cowl induction hood
TPI intake air foil

System:
Panasonic DFX-99
2 12" RF DVC's
RF 250.2 (Custom
RF 200.4 Painted)
Sony 10 disc changer
Clarion Pro Audio 4x6's

 

Dude, those are some UNBELIVABLE TIMES for a TBI stock car. Usually they run mid-low 16's but ur guy got it to run mid 15's. Thats crazy. Was it cold that day?

------------------
Eric Natzke
91 Firebird 305 TBI (ZZ4 summer of "01")
ASCD Ram Air Hood-3" custom exaust-Flowmaster 80 Series-No Cat-Edelbrock TES Headers (coated)-March Pulleys-TBI Spacer-K&N Open ELement-TransGo Shift Kit-B&M Supercooler 28,000 GVW-Hypertech Thermomaster-160 Stat-3:42 GM Gears-Auburn Posi Unit-Edlebrock Strut Tower Brace-MSD Superconducters-Accel Cap & Rotor-MSD Blaster Coil-Rapidfire Plugs-265/50/R15 Tires-Emmison's all Gone
http://members.aol.com/j007golden/91firebird.html

 

It was a cold day, I dont know what temperatures were, but it was in early november, in northern IL, so it was far from hot. He said his engine temps stayed cool all day, and he made 7 passes, so I'm guessing that may have made a decent difference...but it shouldnt have mad that BIG of a difference. He had his dad talk to the guy he bought the car from, and he said that he's never done anything to it. I was wrong in the initial post as well...its got closer to 170,000 miles on it. I just dont get it...

------------------
'87 GTA
Automatic 350 TPI
2 3/4" Flowmasters
K&N filtercharger
4 3/4" Glasstech Cowl induction hood
TPI intake air foil

System:
Panasonic DFX-99
2 12" RF DVC's
RF 250.2 (Custom
RF 200.4 Painted)
Sony 10 disc changer
Clarion Pro Audio 4x6's

 

where did he race in northern illinois?

 

We race at the Byron dragway, 1/4 mile track right outside of byron, IL. It's a pretty nice strip, and about 8 miles from my house...i love it. =) Except this year...we had the NMRA (eeeeviiiillll!!) out one weekend....man...mustangs EVERYWHERE!!!! It eventually ended in Rockford with a fairly large mustang vs. everything else shootout on the streets of rockford. crazy.

------------------
'87 GTA
Automatic 350 TPI
2 3/4" Flowmasters
K&N filtercharger
4 3/4" Glasstech Cowl induction hood
TPI intake air foil

System:
Panasonic DFX-99
2 12" RF DVC's
RF 250.2 (Custom
RF 200.4 Painted)
Sony 10 disc changer
Clarion Pro Audio 4x6's

 

dude I know that this is a tbi car but the 305 just has a bad following all in all its a good motor Hell look at my sig this block is as old as they get yet still pumped out a low 14.9 thats a good motor I have a real love for the 305 just cus its kind off the underdog


------------------
Ya sure it is just an RS

B4Cyaa

1991 RS B4C
Former Nebraska Highway Patrol Car 1 of 3
305 TPI
WC T-5
Four Wheel Disk Brakes
Only Options
Rear Defrost
Am-Fm Radio
Red-int White-exe
One BA Of A 350 In The Works
Mods
Dynomax Cat Back (to hold me over till I got the $$$ for the Borla)
best 1/4mile Run of 14.92@94.83
with 145,000 on her

 

My LG4 Berlinetta has run a best of 15.56s 1/4 in stock form(less cat and other emmissions crap)at 88mph. It now has 1 5/8 headers and custom y pipe so looking for some improvement at next outing.

 

A fr4iend of mine looked into it, and I guess GM put some sort of crazy cam in the 305's, that when matched with the TBI, put out fairly amazeing times in a 1/4. I guess when they matched it up to the TPI setup, it's time actually INCREASED. So apparently in the 305 TBI cars, there is some special relationship between the profile on the cam, and the intake and fuel delivery setup that causes some really wicked stock power. Thats what I was told at least.

------------------
'87 GTA
Automatic 350 TPI
2 3/4" Flowmasters
K&N filtercharger
4 3/4" Glasstech Cowl induction hood
TPI intake air foil

Coming Soon...
Hmmm...Perhaps a new bird...pro street????
System:
Panasonic DFX-99
2 12" RF DVC's
RF 250.2 (Custom
RF 200.4 Painted)
Sony 10 disc changer
Clarion Pro Audio 4x6's

 

actually 305s have HORRIBLE stock cams. LOL. peanut cam=crazy cam?? LOLOLOLOL

 

like I said...thats what I was told...not sure.

------------------
'87 GTA
Automatic 350 TPI
2 3/4" Flowmasters
K&N filtercharger
4 3/4" Glasstech Cowl induction hood
TPI intake air foil

Coming Soon...
Hmmm...Perhaps a new bird...pro street????

System:
Panasonic DFX-99
2 12" RF DVC's
RF 250.2 (Custom
RF 200.4 Painted)
Sony 10 disc changer
Clarion Pro Audio 4x6's

 

Now I am not sure of this BUT I thought that the 305s had two cams you could get the peanut cam for the low output and the good cam came with the high output 305s the tacs had diff. red lines plus I think that the 305 high output cam was actualy the 350s cam but I am not sure
I just wanted to say that just cus its a 305 doesnt mean the cam sucks

------------------
Ya sure it is just an RS

B4Cyaa

1991 RS B4C
Former Nebraska Highway Patrol Car 1 of 3
305 TPI
WC T-5
Four Wheel Disk Brakes
Only Options
Rear Defrost
Am-Fm Radio
Red-int White-exe
One BA Of A 350 In The Works
Mods
Dynomax Cat Back (to hold me over till I got the $$$ for the Borla)
best 1/4mile Run of 14.92@94.83
with 145,000 on her

 

I have an 86 camaro irocz I went out to the track about a year ago had about 112,000 miles and was all stock and ran a 15.1

 

I have an '82 T/A that has it's stock 305 but had a shift kit put into the stock 200. (I know, I'm already paying for their mistake, -no second gear --) Anyways, my car has beat countless 5.0 stangs, and other Camaros with 305s. but when I come up on 350 Camaros with 700r4s or 5-speeds, then, well, you know. But everybody says this thing has to be a 350. Then they look at the manifold and see the grid. Yeah, maybe someone built a 350 with a 305 manifold, but all I know is that I'm happy with it's peformance.


BTW, I don't know excactly how many miles, cause it was run for years with out the speedo hooked up.

------------------
'82 Firebird, dead stock, 9 bolt disc rear, over 200,000 miles and still going strong, more to come...

 

That definately is not the stock 305. A stock 82 Firebird is pretty much everyone's bitch in a drag race.

 

That's what I thought too. I'm swapping a 350 backed by a WC T-5 soon, and this motor is going into my Elcamino. I guess I'll find out then!!

------------------
'82 Firebird, dead stock, 9 bolt disc rear, over 200,000 miles and still going strong, more to come...

 

The times in my sig are from Byron in early November. Stock, with tune up and exhuast.

------------------
87 Z28 305 TPI, Auto, 2.73, Gutted air boxes, K & N fillters, Dyno Max 3" cat back, Accel 8.8 mm spirals, Accel cap and rotor, Accel coil, rapid fires, and 160 Stat.
Best 15.414 @ 87.47

 

oops duel post

[This message has been edited by UnderDogRS (edited December 06, 2000).]

 

tonight(12/7/00) the best i ran was a 15.2@89mph. fuel set @ 15psi,
timing at 4* adv.
my mods are in my signature.
hth,
RS

------------------
(A.K.A FireBird88)
AOL SN: Zander0710
1992 Camaro RS 25th anniversary edition Adopted Feb,14 2000

Mods:
14x3 Open element w/ K&N filter, MSD 6a, MSD GM blaster Coil ,MSD 8.5 SC wires, AFPR,Fuel Pressure gauge(60Psi max), 3-Row Al rad. , 180* t-stat, Hooker 1 5/8 headers, 3" Catco cat, 3" Hooker Aero Chamber cat-back, "Ultimate TBI" mods

 

305 H.O. cars were all typically 15.0 to 15.5 second cars. I remember lining up with a new TBI equipped '91 RS Camaro in Orlando once, and he was clicking off 15.7's all night to my 15.6's.

At 131,000 miles, my 305 HO was turning 15.7's at 87 MPH. At 133,000 miles, with a "few" new parts, it did a best of 14.04 at 100.82MPH. The shortblock is still essentially untouched, and it's using the original piston rings and bearings.


------------------
Daniel Burk
http://www.isthq.com/~dan/fcar.html
'84 Trans Am WS6/L69
KB SFC, Moser axles, Torsen Diff. PST suspension, Braided stainless brake lines, Koni struts, 11-inch rear disks,Spohn Adj. torque arm,
Ported 305 heads w/1.94"intake valves, Comp Cams XE262H, Griffen alum. radiator,
Turbine Technologies 2500 stall converter, underdrive pulleys, Crane Hi-6 & more.
1.05g skidpad verified.
New best E/T! 14.039 at 100.82 MPH in 41 degree air at Stanton, Michigan.

 

My 89 RS 305 TBI ran a 15.68 @88 completely stock with the factory air cleaner lid and element removed. I haven't ran since I've added the mods (see sig), but I did kick a friend's 95 Cobra's a$$ that I know runs 14.70's Tuesday. He spun REAL bad, and I hooked pretty good, It was real close, and if we had raced a whole 1/4, I think we would have caught me. We race on a somewhat abandoned stretch or road that is a little less than 1/4 when we are not at the track. We race from the end of the road to an old sign that is about 1000ft out. He almost caught me, but he did spin pretty bad on his "documented" 14.70 run because he was on the same street tires at the track. I'm guessing mine is around 15.0-14.9 MAYBE 14.8999999 -lol I'll let you all know next month when I go back to the track

------------------
82 Z28 350, Ported #882 Heads, Performer RPM cam and intake, hedman headers,650 Demon carb,
Trans: Turbo 350 w/ 4000 stall -- Rearend 7.5 w/ Richmond 4.10's, Auburn Minispool
Future plans: Dart headed, Roller cammed 383 in early '01


89 RS, L03 305, Hypertech Chip,cat delete, Dynomax exhaust,K&N open element Filter,160 stat, MSD coil --Trans:700R4 Corvette Servo -- Rearend: 7.5 GM 3.42 w/ posi-lock
http://www.bassettracing.cz28.com

 

with some rather mild mods a 305 tbi car can be fairly quick. the cam is the biggest stumbling block, but it isn't a complete bummer, i am convinced that it can go well into the 13's. if you go to the tbi discussion area you'll see a bunch of guys doin some easy stuff for big gains with these motors.
it's nice to see a discussion where people aren't bagging on 305's for once.
my tbi mods are in my sig.

lata
tim

------------------
91 Camaro RS-LO3,Auto.
14.301 @ 94.39mph
The car is going street strip for next season. 13's here i come!!!!!
Edlebrock TES Headers, Cat Eliminator Pipe, Borla Adjustable Cat Back,Marche Pulleys, HyperTech Chip,Transgo Shift Kit,B&M Convertor(2000stall),Steve Spohn Rear Rig( all rod ends), Poly Front Bushings,Ported TB, 350 Injectors, Edlebrock Performer TBI Intake, Performer Heads, 1.6 Roller Tipped Rockers
http://www.mycar.net/mafb/registry/detail.cfm?id=299

 

p.s. my car still has the stock, "peanut" cam in it too.

lata
tim

------------------
91 Camaro RS-LO3,Auto.
14.301 @ 94.39mph
The car is going street strip for next season. 13's here i come!!!!!
Edlebrock TES Headers, Cat Eliminator Pipe, Borla Adjustable Cat Back,Marche Pulleys, HyperTech Chip,Transgo Shift Kit,B&M Convertor(2000stall),Steve Spohn Rear Rig( all rod ends), Poly Front Bushings,Ported TB, 350 Injectors, Edlebrock Performer TBI Intake, Performer Heads, 1.6 Roller Tipped Rockers
http://www.mycar.net/mafb/registry/detail.cfm?id=299

 

The TBIs got the "weaker" of cams. The 305 G92 got the 5500 redline with L98 cam.

------------------
91 Formula
305 TPI 5speed
1LE/G92/WS6
Custom cold air intake w/K&N, SLP airfoil, ported plenum, TB coolant bypass,Crane AFPR (47psi),94 octane,Crane Extruded Alum. 1.6 full roller rockers, Timing set from 4*BTDC to 10*BTDC,MSD6AL, Holley 9mm Annihilator Laser shot 50 wires, Ac Delco cap,rotor and plugs, Bosch O2sensor, SLP 1 5/8 headers,SLP catback,3:73s,JET 195* fan switch, Macewen white face gauges, Intellitronix Digital Gauges

Street legal with stock throttle body, runners,intake manifold,cam, and heads.

 

When I had the stock 305 in my car, no internal mods at all, I could only run 15.4 @ 96.8 mph. The car started out as a 305 TBI automatic and a 2:73 open rear. Before the stated time, I swapped to TPI (all stock parts), added Edelbrock headers and a 3" cat back, 5-speed, centerforce dual friction clutch, and misc. stuff like K&N filters.... I don't see a stock TBI 305 running the same numbers. What was his mph? That is another factor to consider.

------------------
91 Camaro TPI, 355ci. Sportsman 11 heads, LT-4 Hot cam,Pete Jackson gear drive, on,and on, and on... 13.6 @ 102.5 with a 2:73 open rear, no traction, no tuning, no practice.

 

With my G-tech my car ran a 15.6 @93.4 (Mph's are always a little high).

Anyone know what an 87 LG-4 with a 5-spd runs stock?

------------------
"Doin 120 Mowin' over mail boxes, radar detector, to show me where the cops is."

"Ain't no such thing as a front wheel drive sports car...I can smoke the tires in my 1985 Accord with 87hp (factory rated)."

1987 IROC-Z28 Camaro
-ADS Super Chip-Replaced all fluids with Red Line Racing Synthetic fluids-Griffen "Nascar" Aluminum Racing Radiator-Good Year Super Hi-Miler Cooling Hoses-160 Degree Thermostat-Jet Fan Switch- Center Force Dual Friction Clutch-Hays Flywheel-New Alternator-Polyurethane transmission mount-Doors sound insulated with Dynomat Super-Replaced Ratted Hoodliner with new one from GM-Accel 300+ Spark Plug Race Wire with Pro-Sleeve -Bosc Platinum +4 Spark Plugs-305 H.O. Dual snorkel intake-Four Dunlop SP Sport 9000 tires (245/50ZR16)-New 3.70 gears in a Posi Rear End off 89' Trans-Am (Sandblasted and Painted Black with Yellow rear end cover)-Rear Disc Brakes (11.65 inch rotors with PBR Aluminum Calipers off 89' Trans Am)-Polyurethane bushings on rear sway bar-Catco free flowing high performance catalytic converter-Hooker Super Competition 3" Mandrel Bent Cat back exhaust-Replaced cardboard headliner with a waterproofed fiber glass headliner....much more comin' soon. =)

 

I might as well chime in since we are talking
305's. Near stock 305 L69 with a few suspension mods and I'm close to the 13's.
I think headers and a little harder launch
next year will put me in the 13's. What is needed to make your car turn a respectable
time(14's) is a little weight reduction. Next time at the strip try removing front sway bar, front passenger seat, spare/jack,
and 1/4 tank of gas.

------------------
Tom K.
84 Z-28 M5 305 L69 HO
pulleys,coil,3:73(stock)
Jet chip, fan switch,
Al dshaft,1.6 rockers,
LCAs and brackets,BFG DRs
14.20 @ 96.74 2.02 60ft

 

Hmm, I thought the only difference between the 305 HO, and the low-output was exhaust pipe width and header styles (shows how ignorant i am). Is the 305 HO the 350 cam? If it is then couldn't you swap a performance 350 cam into like a regular non-HO 305?

------------------
--Steve S-- 84 Trans Am 305 HO 5 speed, completely stock emissions restricted slow 150 hp(chilton rating) 240 torquer that needs RELEASE!!!!

 

Steve S, there are quite a few differences:
good cam(about = 350 cam), good exhaust, flat top pistons = 9.5 compression,aggresive chip, better rods, 5 speed cars got 3:73 gears! If you have an original 84 HO just
gut your cat and tweek your secondary air
valve(see tech articles) reduce a little weight(front sway bar and seats) and you will have a mid 14 second car! Of course it must be tuned well.

------------------
Tom K.
84 Z-28 M5 305 L69 HO
pulleys,coil,3:73(stock)
Jet chip, fan switch,
Al dshaft,1.6 rockers,
LCAs and brackets,BFG DRs
14.20 @ 96.74 2.02 60ft

 

i have an 86 IROC with a 305 that ran 15.03 with just headers and afpr in july! swapped out the cam recently so don't know now but it feels like i woke up the devil!

 

actually the peanut cammed 305`s are the auto cars, from what ive heard, the 305 stick cars are the ones with the better cam.

------------------
87 IROC-z 305 TPI 5spd Borg warner 9-bolt 3.45 posi 4 wheel disc,8.8 Accel wires , bosch platinum +4 plugs,gutted air box,k&n oil filter,synthetic oil 10w30

 

This applies to some 305 TPI autos... 86 for sure,possibly 87-89 as well. Its been proven, however, that MAP 305 TPIs all have the L98 cam. There are those who continue to perpetrate the gay myth that these cars have the peanut cam, but its bull****.

------------------
91 Trans Am WS6
Bright White
5.0 TPI auto
Flowmaster 3" 2 chamber catback
Trans Go shiftkit
2000 stall converter

Built on Wednesday

 

Cause Im a High plains Drifter...

------------------
60 Ranchero - Project ( Money Hole )
85 Sport Coupe LG4 - Daily Driver

Livin' the Stereotype