Poll: Who here has the quickest 305 powered N/A ride???
Thread Starter
Junior Member
Joined: Dec 2000
Posts: 16
Likes: 0
From: Groton, CT
Car: '95Z28/'94 Trans Am/'85Z28
Engine: LT4/LT1/350
Transmission: T56/4L60/700R4
Poll: Who here has the quickest 305 powered N/A ride???
This should be interesting. If you're running a 305 and it's naturally aspirated ie: no nitrous or blower/turbo, post your times and mods please. This can give me and others I'm sure a baseline on a future/current buildup. Also state if it's carbed, TPI or TBI. Thanks!
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Dan Young
1995 Z28/M6
Groton, CT
Not stock
1984 Z28/A4 - Prospective purchase
No times, cuz it ain't mine just yet!!!
[This message has been edited by KIDIROC (edited December 29, 2000).]
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Dan Young
1995 Z28/M6
Groton, CT
Not stock
1984 Z28/A4 - Prospective purchase
No times, cuz it ain't mine just yet!!!
[This message has been edited by KIDIROC (edited December 29, 2000).]
Member
Joined: Nov 1999
Posts: 268
Likes: 0
From: Hopewell Jct., N.Y.
Car: 84 Z28 Camaro
Engine: 350ci
Transmission: T-5
Time and mods are in the signature but there
are a few faster guys.....(there always are!)
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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
are a few faster guys.....(there always are!)
------------------
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
Member
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Joined: Dec 2000
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From: Central Indiana
Car: 1984 Camaro Z28
Engine: Blueprint 383
Transmission: T-5
Axle/Gears: 3.73
84305HO,
Good 1/4 time. Do you have new traction bars on that? That is a good 60' time. How much difference did the 1.6 rocker arms make and did you have to get taller valve covers? How much did the jetchip help? I just got the DH secondary rods for my carb. Haven't installed them yet. I'm assuming you have the 5spd since you have 3.73 gears.
KidIroc,
If you buy a 84 make sure it has the HO engine and a 5spd. You can add about .5 sec on the 1/4 if you get an auto tranny. The 305 HO was rated at 190hp vs. the 145hp 305. You have less mods to do to get your times down. The HO had electric fan, 4bbl quadrajet, dual snorkel air cleaner, and better cam.
84 Z28 305HO, 5spd, 220,000 miles, Edelbrock intake, Hedman headers, low restriction exh(w/cat), K&N air filter, air pump gone, AC gone, Best 1/4 so far 14.649 @ 94.77mph
Good 1/4 time. Do you have new traction bars on that? That is a good 60' time. How much difference did the 1.6 rocker arms make and did you have to get taller valve covers? How much did the jetchip help? I just got the DH secondary rods for my carb. Haven't installed them yet. I'm assuming you have the 5spd since you have 3.73 gears.
KidIroc,
If you buy a 84 make sure it has the HO engine and a 5spd. You can add about .5 sec on the 1/4 if you get an auto tranny. The 305 HO was rated at 190hp vs. the 145hp 305. You have less mods to do to get your times down. The HO had electric fan, 4bbl quadrajet, dual snorkel air cleaner, and better cam.
84 Z28 305HO, 5spd, 220,000 miles, Edelbrock intake, Hedman headers, low restriction exh(w/cat), K&N air filter, air pump gone, AC gone, Best 1/4 so far 14.649 @ 94.77mph
Joined: Jul 1999
Posts: 2,926
Likes: 5
From: Tucson, Arizona USA
Car: 1987 Z28 Convertible
Engine: 305 TPI
Transmission: 5-speed
The incredible Tim Burgess has the fastest n/a 305 I know of. He ran a 12.61 with his immaculate '92 Z28. I know this for fact because he did it against me at our local track. I need not remind everyone that he drives his car daily, is emissions legal and hauls!! When he races, he does use his Hoosiers on all four corners and his "track" exhaust. His burnouts are done at 6,000 rpm and are awfully impressive.
Tim bought his car new and is dark metallic teal, the only year third gen Z28's were offered in this color. It also has a gray leather interior.
Tim moderates the Electronics board, so if you would like his extensive list of mods, e-mail him. I'm sure he'd be glad to share it.
------------------
Willie
Supercharged 1987 305 IROC-Z, Daily-Driver, Emissions-Legal.
12.57 @ 111 mph.
12.04 @ 114 mph (50-hp nitrous).
http://members.optushome.com/au/downunder1/rides/willie/willie.html
1987 "20th Anniversary Commemorative Edition" Z28 Convertible -- Super Chevy Show Class Winner, 1998.
My custom front marker lamp assemblies:
http://members.optushome.com/au/downunder1/misc/lens.html
[This message has been edited by Willie (edited December 29, 2000).]
Tim bought his car new and is dark metallic teal, the only year third gen Z28's were offered in this color. It also has a gray leather interior.
Tim moderates the Electronics board, so if you would like his extensive list of mods, e-mail him. I'm sure he'd be glad to share it.
------------------
Willie
Supercharged 1987 305 IROC-Z, Daily-Driver, Emissions-Legal.
12.57 @ 111 mph.
12.04 @ 114 mph (50-hp nitrous).
http://members.optushome.com/au/downunder1/rides/willie/willie.html
1987 "20th Anniversary Commemorative Edition" Z28 Convertible -- Super Chevy Show Class Winner, 1998.
My custom front marker lamp assemblies:
http://members.optushome.com/au/downunder1/misc/lens.html
[This message has been edited by Willie (edited December 29, 2000).]
Joined: Sep 1999
Posts: 1,496
Likes: 60
From: Danville, IN
Car: 1991 Camaro Z28
Engine: LS1
Transmission: 4L60E
Axle/Gears: Strange 12 Bolt, 3.42
13.4 is the best I've done with my 305 so far. Check my signature for the mods.
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84 Camaro 305 ported & milled heads, 3 angle valve job, Edelbrock Performer RPM intake, Hedman full length headers, Accell ignition, Crane 274H cam, B&M 700R-4, 3000 stall speed, 4.10 gear,
M/T ET street tires
visit my website at http://www.geocities.com/jbenge/page1.html
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84 Camaro 305 ported & milled heads, 3 angle valve job, Edelbrock Performer RPM intake, Hedman full length headers, Accell ignition, Crane 274H cam, B&M 700R-4, 3000 stall speed, 4.10 gear,
M/T ET street tires
visit my website at http://www.geocities.com/jbenge/page1.html
Moderator
Joined: Jan 2000
Posts: 19,655
Likes: 309
I think my fuel gauge goes down the fastest, if that's what you wanted...
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Later,
Vader
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"No matter how hard you try you can't stop us now"
Adobe Acrobat Reader 4.0
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Later,
Vader
------------------
"No matter how hard you try you can't stop us now"
Adobe Acrobat Reader 4.0
Senior Member
Joined: Jul 1999
Posts: 900
Likes: 1
From: Haslett, MI
Car: 1984 Trans Am WS6
Engine: Minirammed 385, 396 RWHP
Transmission: T56
Axle/Gears: 3.73 Moser 12-bolt
My 305 does nearly 101 MPH in the quarter mile, and it's still the stock 133,000 mile shortblock. Everything else on the engine has been replaced though...
E/t 14.039 at 100.82 MPH. With Computer controlled Quadrajet. I think there's another 1 to 2 MPH left and about .4 seconds with tuning.
------------------
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.
E/t 14.039 at 100.82 MPH. With Computer controlled Quadrajet. I think there's another 1 to 2 MPH left and about .4 seconds with tuning.
------------------
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.
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Member
Joined: Nov 1999
Posts: 268
Likes: 0
From: Hopewell Jct., N.Y.
Car: 84 Z28 Camaro
Engine: 350ci
Transmission: T-5
Reply to Craig84Z:
I have Spohns LCA's and relocation brackets
and BFG drag radials for enhanced traction.
Also for the Jet stage II chip I have a
160 thermostat and fan switch. I like to do
my mods in combinations to maximize effect.
The 1.6 roller tip rockers which is my only
real engine mod netted me about 1mph which
equates to about 10 hp and they fit under
stock valve covers.
Went to CK secondary rods which is one step
richer than the std DR L69 rod.
------------------
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
[This message has been edited by 84305HO (edited December 31, 2000).]
I have Spohns LCA's and relocation brackets
and BFG drag radials for enhanced traction.
Also for the Jet stage II chip I have a
160 thermostat and fan switch. I like to do
my mods in combinations to maximize effect.
The 1.6 roller tip rockers which is my only
real engine mod netted me about 1mph which
equates to about 10 hp and they fit under
stock valve covers.
Went to CK secondary rods which is one step
richer than the std DR L69 rod.
------------------
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
[This message has been edited by 84305HO (edited December 31, 2000).]
Supreme Member
iTrader: (1)
Joined: Jul 1999
Posts: 1,334
Likes: 1
From: Key West, Florida!
Car: 89RSconvtZZ4TPI
Engine: ZZ4TPI
Transmission: 700R4 TRIPP TRANNY
14.21@96mph. 92Z28convt 5spd 3:08 posi disc on 235 Eagle GA's. Hollow cat, alum drive shaft, ported intake plenum and runners, coolant bypass, CenterForce Clutch. Run was in perfect weather. Otherwise 14.5 all day.
Dyno 220.5 RWHP @ 4500rpm
313.5 ft/lbs torque @ 2500.
Not bad for a car rated at 205 at the flywheel!
------------------
Rob P
89RSconvtZZ4TPI
92Z28convt5spd
71Impala convt 402BB
BETTER DRIVING THRU SUPERIOR HORSEPOWER!
Dyno 220.5 RWHP @ 4500rpm
313.5 ft/lbs torque @ 2500.
Not bad for a car rated at 205 at the flywheel!
------------------
Rob P
89RSconvtZZ4TPI
92Z28convt5spd
71Impala convt 402BB
BETTER DRIVING THRU SUPERIOR HORSEPOWER!
Supreme Member
iTrader: (1)
Joined: Feb 2000
Posts: 7,964
Likes: 4
From: Norfolk, VA. USA
Car: 86 Trans Am, 88 Formula
Engine: 95LT4, 305TPI
Transmission: T56, T5
my 86 Trans Am with my 305 LG4 motor and the mods in my sig gave me a 14.94@91.67mph.
This was my first time drag racing and that time was my 4th run.
------------------
Zepher
'86 Pontiac Trans Am WS6, LG4 305, 5 Speed, CF DF Clutch,
Edelbrock 1406 Carb, Edelbrock Performer RPM 7101 Intake Manifold.
Edelbrock Open Element Air Cleaner: Flowmaster Exhaust, 160* Thermostat,
Grant GT Steering Wheel, MSD HEI Coil, Taylor 8mm Wires, Leather 96 Camaro SS Seats,
Alpine CD+Changer,Alpine V12 Amps, Premier TS-1040C Subs, Polk Audio highs/mids.
Best ET: 14.94@91.67
High Speed Run: 157mph
WS6 Trans Am
This was my first time drag racing and that time was my 4th run.
------------------
Zepher
'86 Pontiac Trans Am WS6, LG4 305, 5 Speed, CF DF Clutch,
Edelbrock 1406 Carb, Edelbrock Performer RPM 7101 Intake Manifold.
Edelbrock Open Element Air Cleaner: Flowmaster Exhaust, 160* Thermostat,
Grant GT Steering Wheel, MSD HEI Coil, Taylor 8mm Wires, Leather 96 Camaro SS Seats,
Alpine CD+Changer,Alpine V12 Amps, Premier TS-1040C Subs, Polk Audio highs/mids.
Best ET: 14.94@91.67
High Speed Run: 157mph
WS6 Trans Am
Member
iTrader: (2)
Joined: Dec 2000
Posts: 222
Likes: 0
From: Central Indiana
Car: 1984 Camaro Z28
Engine: Blueprint 383
Transmission: T-5
Axle/Gears: 3.73
To 84305,
I said in above post I got DR rods. I got new AU rods. Got my letters mixed up. What brand roller rockers did you get? I am assuming the fan switch kicks the fan on at a lower temperature?
Thanks,
Craig
I said in above post I got DR rods. I got new AU rods. Got my letters mixed up. What brand roller rockers did you get? I am assuming the fan switch kicks the fan on at a lower temperature?
Thanks,
Craig
Junior Member
Joined: Sep 1999
Posts: 65
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From: Vancouver BC, Canada
Banned
Joined: Jul 2000
Posts: 1,384
Likes: 0
i will have some times for you in a few weeks after I race at Atco in jersey. I should do pretty good...
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91 Formula
305 TPI 5speed
1LE/G92/WS6
K&N, SLP airfoil, ported/polished plenum, March pulleys, TB coolant bypass,Crane AFPR(47psi),Crane Gold 1.6rrs,MSD coil,MSD6AL, Holley 9mm wires,Bosch O2sensor, SLP headers & catback,3:73s w/Auburn posi,160* t-stat,JET 195* fan switch, Macewen white face gauges, Autometer gauges, Zoom hi-performance clutch.
Street legal with stock throttle body, runners,intake manifold,cam, and heads.
------------------
91 Formula
305 TPI 5speed
1LE/G92/WS6
K&N, SLP airfoil, ported/polished plenum, March pulleys, TB coolant bypass,Crane AFPR(47psi),Crane Gold 1.6rrs,MSD coil,MSD6AL, Holley 9mm wires,Bosch O2sensor, SLP headers & catback,3:73s w/Auburn posi,160* t-stat,JET 195* fan switch, Macewen white face gauges, Autometer gauges, Zoom hi-performance clutch.
Street legal with stock throttle body, runners,intake manifold,cam, and heads.
Member
Joined: Sep 2000
Posts: 147
Likes: 0
From: Lubbock,Tx
I used to run a 14.9 with mine. I am now running a 16.2 with the 350. I guess I have a lot of tuning to do. 
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1983 Camaro Z28
Goodwrench 350ci V8, Edelbrock TES Headers, Flowmaster Catback, MSD 6al and Blaster 2 coil, Edelbrock Performer intake, Edelbrock Performer 600cfm carb. T5, 373 rear, Eibach springs, Cervin Vega speakers, Rock. Fos. Sub, Pioneer CD,
email-chris4421@hotmail.com
-------------------------
"I used to be a Mustang Guy! I didn't know the power of the dark side!!"
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1983 Camaro Z28
Goodwrench 350ci V8, Edelbrock TES Headers, Flowmaster Catback, MSD 6al and Blaster 2 coil, Edelbrock Performer intake, Edelbrock Performer 600cfm carb. T5, 373 rear, Eibach springs, Cervin Vega speakers, Rock. Fos. Sub, Pioneer CD,
email-chris4421@hotmail.com
-------------------------
"I used to be a Mustang Guy! I didn't know the power of the dark side!!"
Member
Joined: Apr 2000
Posts: 307
Likes: 0
From: Frederick, MD USA
You are 4 tenths better than me! You only have a ported plenum/hollwed cat on me and you have more weight! What did you run stock?? How much did you pick up from porting the plenum and hollowing the cat?
------------------
-Red '88 IROC 5 Speed 305 TPI w/3.08
-Dual Friction Centerforce Clutch
-Accel 300+ Racing Ignition
-Accel 300+ Pro Sleeve Plug Wires
-Accel U-Groove 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 14.686, 60' 2.205, 1/8th mile 9.461, 1/4 MPH 93.91
-Best 60' 2.17
Originally posted by Rob P:
14.21@96mph. 92Z28convt 5spd 3:08 posi disc on 235 Eagle GA's. Hollow cat, alum drive shaft, ported intake plenum and runners, coolant bypass, CenterForce Clutch. Run was in perfect weather. Otherwise 14.5 all day.
Dyno 220.5 RWHP @ 4500rpm
313.5 ft/lbs torque @ 2500.
Not bad for a car rated at 205 at the flywheel!
14.21@96mph. 92Z28convt 5spd 3:08 posi disc on 235 Eagle GA's. Hollow cat, alum drive shaft, ported intake plenum and runners, coolant bypass, CenterForce Clutch. Run was in perfect weather. Otherwise 14.5 all day.
Dyno 220.5 RWHP @ 4500rpm
313.5 ft/lbs torque @ 2500.
Not bad for a car rated at 205 at the flywheel!
------------------
-Red '88 IROC 5 Speed 305 TPI w/3.08
-Dual Friction Centerforce Clutch
-Accel 300+ Racing Ignition
-Accel 300+ Pro Sleeve Plug Wires
-Accel U-Groove 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 14.686, 60' 2.205, 1/8th mile 9.461, 1/4 MPH 93.91
-Best 60' 2.17
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