1/4 time - speed - The 1947 - Present Chevrolet & GMC Truck Message Board Network

PMS · 05-08-2005, 11:53 PM

Any idea what a 72 long bed with a 330HP / 380TQ 350CID with a 2500 stall converter, turbo 350, 3.42 rear with 28" rear tires might run in the 1/4?

Thanks,
Parrish

68w/sbc406 · 05-09-2005, 12:44 AM

it would depend on the conditions. but just to let you know when i tried to run my truck at the local track they wouldnt let me cause of the gas tank in the cab

Purs · 05-09-2005, 10:54 AM

to many variables but I'll take a stab, mid to low 14's at 95mph.

sorry to hijack but has anyone else had this trouble with not being able to run with the tank in the cab? 68w/sbc406, was this an IHRA sanctioned track?

bowtie · 05-09-2005, 11:46 AM

I ran 11.7 w/juice and 12.7 without, and my tank is still in the cab.

My guesse would be high 14's to low 15's @ 90mph.

redhead69 · 05-09-2005, 11:55 AM

thats why I'm doing my swap.. lots of friends at Woodburn Drags.. (IHRA) and they are very strict about that tank in the cab.. had a friend who kissed some butt and they let him run for the day.. as long as he didnt go under 14.00 in the 1/4. If they do let you run they will haggle you all day. I think the swap will help with traction too!

LUV2XCLR8 · 05-09-2005, 05:06 PM

Quote:

Originally Posted by Purs

sorry to hijack but has anyone else had this trouble with not being able to run with
the tank in the cab? 68w/sbc406, was this an IHRA sanctioned track?

Never heard of that one before

68w/sbc406 · 05-09-2005, 07:48 PM

Quote:

Originally Posted by Purs

to many variables but I'll take a stab, mid to low 14's at 95mph.

sorry to hijack but has anyone else had this trouble with not being able to run with the tank in the cab? 68w/sbc406, was this an IHRA sanctioned track?

thats the stupid part. it wasnt an IHRA sanctioned track but they were using IHRA rules

(this was at PIR for the locals) its a road course that the CHAMP cars run at and then during the summer they have the friday night drags. its a ****hole of a strip anyway. people are always fighting to get traction.

minibike · 05-09-2005, 08:19 PM

I would guess in the high 14's or low 15's, if the horsepower numbers are Dyno'd and accurate. I have 350HP at the flywheel...maybe 300 at the wheels on a shortbed. Before posi, I couldn't run better than a 14.72 at about 92 mph. After posi, the best run was 14.14 at about 97 mph.

racer6 · 05-09-2005, 11:31 PM

my 67 lwb, with battery and fuel in bed, powered by a 327cid/350hp to rear wheels, 373 posi, 400 torbo w/ 2500 stall runs 13:20's in 1/4 and 12:60's in 1000'.....it weights 3850 with me in it...............if that helps

CHEVIBUBBA · 05-10-2005, 12:23 AM

these guesses seem optomistic to me.
on 28's i "guess" 15.3-15.7.
i never had a problem at ennis with the tank in the cab.they are nhra track.

bigjimzlll · 05-10-2005, 09:17 AM

put your info into this calc.....its pretty close.
http://www.wallaceracing.com/et-hp-mph.php

67ChevyC10Stepside · 05-10-2005, 11:41 AM

that says if my truck weighs 4000 pounds and i make 375 horse i will run...Your ET / MPH computed from your vehicle weight of 4000 pounds and HP of 375 is 12.82 seconds and MPH of 104.49 MPH.

FirstGen · 05-10-2005, 03:50 PM

I think that calculator is a little off, it says I will run:

Your ET / MPH computed from your vehicle weight of 3600 pounds and HP of 600 is 10.58 seconds and MPH of 126.58 MPH.

bigjimzlll · 05-10-2005, 04:04 PM

You needd to input rear wheel HP...and yse it is accurate if you input correct HP and Weight.

cableguy0 · 05-10-2005, 04:08 PM

its accurate. what that calculator doesnt say is that the numbers are with optimum gearing and a proper setup all the way around on the vehicle. so if you got something like a 3.07 gear and a huge cam its going to be way off.a properly matched setup is what that calulator is going by

FirstGen · 05-10-2005, 05:48 PM

Quote:

Originally Posted by bigjimzlll

You needd to input rear wheel HP...and yse it is accurate if you input correct HP and Weight.

I did input rwhp... I think it's a little off considering the brick aerodynamics of our trucks at 100+ MPH... jmho..

FirstGen · 05-10-2005, 05:52 PM

Quote:

Originally Posted by cableguy0

its accurate. what that calculator doesnt say is that the numbers are with optimum gearing and a proper setup all the way around on the vehicle. so if you got something like a 3.07 gear and a huge cam its going to be way off.a properly matched setup is what that calulator is going by

yeah my combo is very well matched but I don't see 10:50's with this setup.
I have 458 rwhp on motor, 100 shot (1st stage), 75 shot (2nd stage) with 6 speed standard trans, 4.10 gears, 29" tall tire. Have been 7.0X @ 101 in the 1/8 on first stage...

I think it is probably a close estimate but I think it's a little off...

bigjimzlll · 05-10-2005, 06:45 PM

mine with with 650RWHP runs 10.59 at 121.9 thats with a 150 shot

05-08-2005, 11:53 PM	#1
PMS Registered User Join Date: Aug 2004 Location: Overland Park, KS Posts: 79	1/4 time - speed Any idea what a 72 long bed with a 330HP / 380TQ 350CID with a 2500 stall converter, turbo 350, 3.42 rear with 28" rear tires might run in the 1/4? Thanks, Parrish

05-09-2005, 12:44 AM	#2
68w/sbc406 Got Light Emitting Diode? Join Date: Apr 2004 Location: Newberg, OR Posts: 2,485	it would depend on the conditions. but just to let you know when i tried to run my truck at the local track they wouldnt let me cause of the gas tank in the cab __________________ 1968 1/2 ton 2wd lwb 6 lug disc and bags up front. Next c notch and rear bags '02 Chevy Silverado LT ext cab short bed 2WD 5/7 drop on 22's(the family car) 1993 Cherokee work ride/weekend wheeler

05-09-2005, 10:54 AM	#3
Purs Got Big Block? Join Date: Apr 2000 Location: West Texas Posts: 1,510	to many variables but I'll take a stab, mid to low 14's at 95mph. sorry to hijack but has anyone else had this trouble with not being able to run with the tank in the cab? 68w/sbc406, was this an IHRA sanctioned track? __________________ "Experience is what you get when you didn't get what you wanted."

05-09-2005, 11:46 AM	#4
bowtie Senior Member Join Date: Dec 1999 Location: Saskatchewan Posts: 1,050	1/4 I ran 11.7 w/juice and 12.7 without, and my tank is still in the cab. My guesse would be high 14's to low 15's @ 90mph. __________________ ~70 GMCprostreet swb 396/700r NOS 575 hp "the Brick" ~72 chev swb w/68 front clip "GM Millenium corvette yellow" I use and accept Paypal

05-09-2005, 08:19 PM	#8
minibike Registered User Join Date: Jun 2002 Location: Lafayette, LA Posts: 500	I would guess in the high 14's or low 15's, if the horsepower numbers are Dyno'd and accurate. I have 350HP at the flywheel...maybe 300 at the wheels on a shortbed. Before posi, I couldn't run better than a 14.72 at about 92 mph. After posi, the best run was 14.14 at about 97 mph. __________________ 69 SWB LT1/4L60E www.classicplace.com

05-09-2005, 11:55 AM	#5
redhead69 fugedaboutit Join Date: Mar 2005 Location: Gresham, OR Posts: 832	thats why I'm doing my swap.. lots of friends at Woodburn Drags.. (IHRA) and they are very strict about that tank in the cab.. had a friend who kissed some butt and they let him run for the day.. as long as he didnt go under 14.00 in the 1/4. If they do let you run they will haggle you all day. I think the swap will help with traction too!

05-09-2005, 11:31 PM	#9
racer6 Registered User Join Date: Feb 2003 Location: west of springfield, mo Posts: 69	my 67 lwb, with battery and fuel in bed, powered by a 327cid/350hp to rear wheels, 373 posi, 400 torbo w/ 2500 stall runs 13:20's in 1/4 and 12:60's in 1000'.....it weights 3850 with me in it...............if that helps __________________ racer6.. slightly burned out, but still smokin'..

05-10-2005, 12:23 AM	#10
CHEVIBUBBA got boost? Join Date: Mar 2005 Posts: 123	these guesses seem optomistic to me. on 28's i "guess" 15.3-15.7. i never had a problem at ennis with the tank in the cab.they are nhra track. __________________ '70 chevy lwb w/'67 hood. 357 s.b.c. built, 4l60 w/vigilante lockup high stall converter, edelbrock pro-flo,brodix heads,comp cams rollerized w/ belt drive, one piece d-shaft, yada, yada, yada..... '82 honda v45 sabre"the black"

05-10-2005, 09:17 AM	#11
bigjimzlll Senior Member Join Date: Dec 2001 Location: Redding,CA...USA Posts: 4,736	put your info into this calc.....its pretty close. http://www.wallaceracing.com/et-hp-mph.php __________________ It's called "drag racing" if they called it "tic..tic..WHAM!..BANG! F*&K!!!", they'd have to keep the magazines under the counter with the other men's publications click the clicky to join the site.... http://67-72chevytrucks.com/vboard/payments.php 67 lwb..first hotrod in 25 years..540 best ET is 9.45 @ 141.44 Anderson,CA

05-10-2005, 11:41 AM	#12
67ChevyC10Stepside Registered User Join Date: Mar 2004 Location: Butler PA Posts: 3,034	that says if my truck weighs 4000 pounds and i make 375 horse i will run...Your ET / MPH computed from your vehicle weight of 4000 pounds and HP of 375 is 12.82 seconds and MPH of 104.49 MPH. __________________ 67 c-10, 400 SB, TH350, 4.10 gears, Blazer tank,camaro tach, sidemarker fuel fill (soon) WTB: stepside parts, 67 front end parts, 67 small window cab. posi for 3.73 or 4.10 for 12 bolt and 10 bolt.

05-10-2005, 03:50 PM	#13
FirstGen Just Don't Stop! Join Date: Feb 2004 Location: Dallas Posts: 1,239	I think that calculator is a little off, it says I will run: Your ET / MPH computed from your vehicle weight of 3600 pounds and HP of 600 is 10.58 seconds and MPH of 126.58 MPH. __________________ 1968 C10 build in process TT LSA/6L90e/9"

05-10-2005, 04:04 PM	#14
bigjimzlll Senior Member Join Date: Dec 2001 Location: Redding,CA...USA Posts: 4,736	You needd to input rear wheel HP...and yse it is accurate if you input correct HP and Weight. __________________ It's called "drag racing" if they called it "tic..tic..WHAM!..BANG! F*&K!!!", they'd have to keep the magazines under the counter with the other men's publications click the clicky to join the site.... http://67-72chevytrucks.com/vboard/payments.php 67 lwb..first hotrod in 25 years..540 best ET is 9.45 @ 141.44 Anderson,CA

05-10-2005, 04:08 PM	#15
cableguy0 Senior Member Join Date: Apr 2000 Location: Delta,Pa Posts: 14,950	its accurate. what that calculator doesnt say is that the numbers are with optimum gearing and a proper setup all the way around on the vehicle. so if you got something like a 3.07 gear and a huge cam its going to be way off.a properly matched setup is what that calulator is going by __________________ Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member.

05-10-2005, 06:45 PM	#18
bigjimzlll Senior Member Join Date: Dec 2001 Location: Redding,CA...USA Posts: 4,736	mine with with 650RWHP runs 10.59 at 121.9 thats with a 150 shot __________________ It's called "drag racing" if they called it "tic..tic..WHAM!..BANG! F*&K!!!", they'd have to keep the magazines under the counter with the other men's publications click the clicky to join the site.... http://67-72chevytrucks.com/vboard/payments.php 67 lwb..first hotrod in 25 years..540 best ET is 9.45 @ 141.44 Anderson,CA

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