Pontiac Street Performance
Home | Profile | Register | Active Topics | Members | Search | FAQ
Username:
Password:
Save Password

 All Forums
 Pontiac Performance
 1320 (Pontiac Straightline Performance)
 Norwalk Timeslips
 New Topic  Reply to Topic
 Printer Friendly
Author Previous Topic Topic Next Topic  

PontiacMatt
Many Ponies

USA
1410 Posts

Posted - 17 Aug 2012 :  11:28:14 AM  Show Profile  Reply with Quote
figured I'd share this picture of my timeslips from Norwalk (Pontiac Nationals)

I know there has got to be more in this car, and the more I read of other combos, almost makes me think something is off with my engine... thinking the cam not being degree'd is holding it back. course the mild-ported iron heads are a restriction at some point, but honestly i don't even think i've maxed out their potential yet.

I was on street tires, not even drag radials. I understand that good traction will help a lot. so before making any major changes I need to get the car to hook.

anyway, here's my timeslips. Race weight was ~3770 lbs.
I'm car #485 (they goofed on the last pass and had me as car 483)
timeslips in order, first to last



*72' Pontiac Lemans* - Work in Progress

RayK
Cochise

USA
925 Posts

Posted - 17 Aug 2012 :  12:34:52 PM  Show Profile  Reply with Quote
Matt, if you could get your 60' times down your et would be better. You're spinning off the line and traction is a huge factor. Not saying thats the only issue but it's definately one of importance.

1969 Firebird 461, #62 iron heads, Comp roller, Performer RPM, Q-Jet Turbo 400 w/ Continental converter. GM 8.5" 10 bolt with 3:73 gears.11.50's@ 119+ MPH
Go to Top of Page

PontiacMatt
Many Ponies

USA
1410 Posts

Posted - 17 Aug 2012 :  1:07:49 PM  Show Profile  Reply with Quote
Ray you are right. definitely have to get some traction.

wonder where my 60' times should be? at the least, 1.9's?

*72' Pontiac Lemans* - Work in Progress
Go to Top of Page

Bill Boyle
Horse Feathers (Charter Member)

USA
4793 Posts

Posted - 17 Aug 2012 :  1:12:54 PM  Show Profile  Visit Bill Boyle's Homepage  Reply with Quote
Hey Matt that's great for "starters." You will get even quicker in no time. Better rubber, more experience, a little extra tuning....

60' ? 1.8 seconds is a reachable goal.

"Dedicated to keeping the classic Pontiac engine alive."

----
400 bored +.030, forged TRW pistons, ported 62 heads, Hedman headers, 2.5 SS dual exhaust X Pypes, Comp 276AH10 cam, Scorpion 1.65 RR, 850 Q-jet, stock intake & tuned HEI; original owner.

Edited by - Bill Boyle on 17 Aug 2012 1:14:12 PM
Go to Top of Page

Blued and Painted
Chief PONTIAC

USA
3404 Posts

Posted - 17 Aug 2012 :  1:31:31 PM  Show Profile  Reply with Quote
X2 on the traction. I dont recal your combo but thats pretty strong for a daily driver. I installed my cam with an expensive billet gear set with the multiple crank key way's. I started with the zero mark and found the cam 4 degrees off. Can't remember witch way. Dont know were the differance came from but i had plenty of adjustment to work with. Intake center speck was 108. Ended up with 107.5 . OMG


Bull Nose Formula/ 461/ Q-Jet/
TH400/ 3.08 8.5 / R44TS.
Go to Top of Page

PontiacMatt
Many Ponies

USA
1410 Posts

Posted - 20 Aug 2012 :  11:02:03 AM  Show Profile  Reply with Quote
Thanks guys.

Bill, wonder what 3 tenths on in the first 60' translates to on the top end? at the minimum, that brings my best pass at norwalk from a 12.9x to a 12.6x. (bringing 2.12 60' down to a 1.8 60')

that's a big difference.

*72' Pontiac Lemans* - Work in Progress
Go to Top of Page

cortcomp
Coyote

USA
5335 Posts

Posted - 20 Aug 2012 :  11:11:06 AM  Show Profile  Visit cortcomp's Homepage  Reply with Quote
" I started with the zero mark and found the cam 4 degrees off."

I had one 6 degrees off. This one, straight up, ended at 108, i think spec called for 106 for XE grinds (or 110, don't recall which number). Anyways, either way i was 2 degrees off and left it there.
Go to Top of Page

Blued and Painted
Chief PONTIAC

USA
3404 Posts

Posted - 20 Aug 2012 :  11:42:17 AM  Show Profile  Reply with Quote
Then i re-set everything and double checked on #6.


Bull Nose Formula/ 461/ Q-Jet/
TH400/ 3.08 8.5 / R44TS.
Go to Top of Page

rad400
War Paint

USA
1251 Posts

Posted - 20 Aug 2012 :  1:08:10 PM  Show Profile  Reply with Quote
Nice numbers Matt.

Conrad
79 Trans Am 400 auto Crower 60210 Torker II Holley 750 vac sec. #12 heads,3500 stall.
Go to Top of Page

67drake
Sitting Duck

Azerbaijan
1501 Posts

Posted - 20 Aug 2012 :  2:12:20 PM  Show Profile  Reply with Quote
Matt,I wish my car were this quick,so don't feel bad.
I agree with Ray,your 60' are not too good. I have heard that every .1 you knock off of your 60' translates to .15 quicker in the 1/4 mile ET.
You may want to run a stickier tire,or buy a set of slicks/rims to swap to at the track. I remember you saying you had a 12 bolt in that car,so I think that will hold up fine. Tranny and U-joints,well you'll find out soon enough how they hold up!LOL
Switching from a 255/60/15 Goodyear Eagle GT II to a MT ET Street knocked over .2-.3 off of my 60' my first time out. Now I can 60' in the 1.9's. Still not great,but a lot better.



71' GTO Original 400 M20 3.23 posi
13.95@102.1 MPH on street tires
Go to Top of Page

RayK
Cochise

USA
925 Posts

Posted - 30 Aug 2012 :  12:20:47 PM  Show Profile  Reply with Quote
I tried to run the ET Streets drag radials, and they worked for awhile but then I never really did get the 60' times below 1.9 until I tied the suspension together. The biggest improvement was getting the adjustable pinion snubber adjusted properly and then the car began lifting the left front tire. 60' went down to 1.70 and I started running in the 11.80 - 11.70 range. We took the car out this past Friday and she ran a best ET of 11.60. Traction means EVERYTHING.

1969 Firebird 461, #62 iron heads, Comp roller, Performer RPM, Q-Jet Turbo 400 w/ Continental converter. GM 8.5" 10 bolt with 3:73 gears.11.50's@ 119+ MPH
Go to Top of Page

Chicagogoat
Cochise

USA
823 Posts

Posted - 30 Aug 2012 :  11:22:26 PM  Show Profile  Visit Chicagogoat's Homepage  Reply with Quote
Yeah Matt, today's new drag radials are engineered for this type of crowd. I'm sure that with ideal traction you'll shave at least .25 seconds.

Pure Pontiac: learn it, live it, love it!
Go to Top of Page
  Previous Topic Topic Next Topic  
 New Topic  Reply to Topic
 Printer Friendly
Jump To:
Pontiac Street Performance © 2006-2017 Go To Top Of Page
This page was generated in 0.16 seconds. This Site Sponsored By:
Powered By: Snitz Forums 2000 Version 3.4.05