First time out.... waa waa waa waaaaaaaa !

You need some 3.42 gears to get that car moving.

 

i think he need better tires and a posi before some gears 3.42 will only make thing worst :3gears:

 

The new tires should help (nitto drag radials) and I do have a powertrax installed now ...yeah I know ideally I need 3:42's but I think high 13's are a realistic possibility for this car - combo ......we shall see Wednesday night .........J

 

I think high 13's should come easy. The 67 I have has small valve unported heads with 3.90 gears and its high 12's. Those heads should make good power and a 3.42 Posi would be real fun. I have Stage 1 heads mild port and a 3.31 posi that I want to add. It cant breath on the top end with the 3.90s now. Its also a dual plane intake.

Now if winter would go away.

 

Yes I think so too Ed (high 13's ) ...I think the biggest things against this particular combo are ....

2:56 Gear
No headers -30 hp = ~ +.30 in the quarter
No true posi

I am really most curious to see what my mph changes to over the last combo .....I was only at 94.85 mph - really down for some reason ? A home made formula if you can call it that - based on the cars desktop dyno engine predicted numbers and its ACTUAL- REAL WORLD best time recorded at the track last time still says only 14.2 at 98 this time with my changes
I hope thats wrong .....lets see how those predicted numbers -math plays out .....J

 

I like the combo you have it should run much better mine is as follows

1970 block stock std bore
cross drilled crank HV oil pump
stock rods 1970 pitons stock just re reinged 15 yrs ago
B4B 800cfm Qjet
mild port stock 70 small valve heads
crane cam 480-500 lift 235 dur
stock minfolds to 3' duals
stock 66 SPTH400 13" convertor with shift kit
3.42 olds 12 bolt posi
255/60/15 BFG street tires
crane hi6 box
60 ft times 2.01 - 2.4 best 1.93

this combo in my 64 post car has run best 12.86 at 107 mph at sea level
and 13.2 at 102 mph at 5,000 ft air

My best times have been on street tires not consistant but the best ones i have ET streets but not any quicker

I am making a stab at the 11's this year i am adding headers and maybe a dif trans and 3.90 gears

you should knock down 13's all day at over 100 easy

ken

 

Nice KEn ....J

 

Sweet car love the colour.
Jamie

 

Is it wed. nite yet ??

Good Luck :beer

 

I'll be checking in first thing in the morning. There better be a report.

 

13.51
103.35

and
13.51
103.55 !

2nd gear through the traps at ~5200 with my 2:56 rear, exhaust manifolds.

So if you guys want the long drawn out specifics here they are ...

Knowing I shouldnt goof with the car the day of racing I quickly went down to the speed shop anyway and bought a .042 primary shooter for my 850 dp trying to get rid of a single pop through the carb when I launched it last night at home a few times to practice ..I slapped it in there and headed to the track tonight ...just for extra insurance I changed the oil too before I left the house with some Walmart SF 10-40 and a bottle of zddp.

Driving to the track ~ 40 miles one way I noticed she felt a little rich so the .042 I think is too much and I bet my plugs are pretty black.

So I tech and dont touch a thing.....I line up against a ricer in a little yellow carbon fibered out , mailbox muffler equipped something or other.

I stall it to 1100 , light hits, I mat it , tires shreak briefly and it single pops through the carb and almost totally dies , OH NO ....it catches and starts major moving - moving- taching really good ...he is long gone but I progressively catch him and take the win. My car is now missing popping a few times on the big end as I am running out of fuel. I had three engine misses the last 16th mile. I have one of the fake Stage One pumps without the wear pad so that must be it .....I was afraid of this happening but now I know for sure...so I will get one of the TA aftermarket pumps and that should lick that problem ...I shifted at 4900 and my transmission is scaring the hexx out of me because when I shift it on the column from 1st to second the rpms first flare 300-500 rpms then it shifts -YIKES. I have no shift kit installed whatsoever in my turbo 350 and it is obviously needed at this point. Through the traps at 5300 in 2nd gear is what I finished the first race in.

2nd race against my friends wifes fresh- first time out with their new combo 454 cid - .620 lift ,solid cammed Camaro with TKO 5 speed. She had just run a 12.50 at 109 with a 1.79 60 ft I believe the previous pass

We line up, I stall to 1100 and mat it when the light hits my car does the same exact thing again, tires shreak , single pop through the carb , almost dies - catches then takes off great ...I shift a little earlier at 4700 knowing the 300-500 rpm jump thing is going to occur between 1-2 shifts
it works out nice and at 4700 in 2nd I go ahead and shift to 3rd the last 1/16 th. This is the first time I have ever been in 3rd at the end of a run. So I am surprised to see my timeslip is almost identical...I am grinning because I also DELUSIONALLY thought I beat my friends wicked Camaro who is no where to be seen. UNFORTUNATLEY she blew her rear end at the start line on her 2nd pass of the night . We think the spiders exploded. So running two slips back to back identical I decide not to run any more and take what I have and run. I need a better fuel pump and I have to obviously get to the bottom of this single pop issue off the line and get a shift kit.

Recap - Sticky tires Nitto nt555r's
1" Rear sway bar
New rear Gabriel load leveler shocks
Removed front sway bar
I intentionally had two tires on rims in the trunk for weight.

These changes alone made a ton of difference in the car hooking up - I have no wheel hop, no passenger side hazing and it it simply hooks and goes for the most part. My 60 ft still sucks at a best tonight of 2.2 - due to the shreak then single pop off the line thing ....so it still has never left clean in its life yet so a 2.0 60' is still a goal.

Going to bed I am pooped ....thanks for all the support ......my scanned timeslips are in the timeslip section ....J

 

I remember JW just posting this and thought it might help ... sounds like you at least had some fun !! Congrats :beer

 

" single pop through the carb , almost dies - catches then takes off great ."

Accelerator pump???
Just a suggestion.

 

Thanks Alan..I now have .042 and an .031 squirter in back ........a buddy said alot of times what happens if you have too much of an accelerator pump shot it dumps all the fuel in too quick- runs great for a milli second then invariably goes lean causing the pop - he suggested going the other way with my squirters to smaller squirters which would make the accelerator shots "last longer " duration wise which would allow the carb to catch up -make its adjustments ....I have a pair of smaller squirters I will try just for the heck of it off an old carb and see what happens...plugs will tell tonight but I it felt overly rich all night with that bigger squirter on the drive over......it was fun and I am not disappointed for the first time out . ..... J

 

I have found that letting the tranny shift on its own produces much better results than trying to shift a tranny with no shift kit installed. You might want to try letting it do the work instead of you guessing where to shift.

When I took my Charger to the track I first shifted it manually (no shift kit) and wasn't terrible happy with the results, but when I let it shift automatically I knocked .02 off my time.:3gears: Apparently, I was letting it over or under rev, in turn, going out of my power range and lagged.

that's my 2-cents

Great job overall!!!:beer

Also, I agree with 70 ConvBeast. It sounds like an accelerator pump issue.

 

With your mph you should be good for low 13s. My 1st time out I was running 13.06s and .07s at 102 mph with a 1.85 60 ft. Get that 60 ft down and you're golden.

Thanks for taking us along for the ride.

 

Good job on going back to the track and running the car. I'm sort of partial to '65's having owned mine for nearly 30 years.
I tried using an 850 dp years ago and had a hard time getting it to launch so I went back to the 800 dp and the car runs fine with it. The thoughts about smaller nozzles may be the way to go to stretch out the shot because you have limited launch power with the 2.56's and probably what amounts to too low of a stall speed converter for your setup. Maybe I'm wrong on this but you might just try putting the bigger shooter in the back for when the secondaries kick in. Just something to try.
If you still had the 800 Edelbrock carb I'd give that I try. That might get you out of the hole smoothly and you 60's would plummet. If you can't do that a 1" 4 hole spacer might get the air velocity up enough to launch clean but hood clearence would be an issue. If you had the Edelbrock performer I'd try that with the DP to see if that works. Then you could try try a 4 hole spacer. You need to get the air moving quicker and that is where your problem lies. Sometimes you have to go backward to go faster.
I have the Powertrax in my car and on the street tires it would hop badly if they would spin. Putting my shocks on max stiffness and pumping up the right airbag helped but the best solution was running some soft sidewall street tires probably like you're running now.
You might have a .5 sec et improvement and some mph just getting your 60' time down.
Don't waste time shifting out of second. All it is doing is wasting time on the shift and beating up the tranny for no reason. Get that shift kit in there.
Also I'd leave the mechanical pump on there and just pick up a Comp 110 pump. That can push fuel through the mechanical and you can turn it off on the street. They are very quiet and that model doesn't need a fuel pump.
When everything is right that engine should pull wayyy past 5000 rpm with no rolloff like you describe.
Plenty of room for you to make big improvements to your performance with only some "minor" changes.

 

I agree totally. Check the diaphrams there. Or could just be some adjustment is in order. Might be coming on too rich, or not nearly enough.

Another thing, with all the "popping" you're describing, I'd check the power valve(s) (it's an 850 double pumper right?) and make sure they're not blown out. They are easy to blow out with a few backfires.

You get that off the line stumble cleared up and I'm sure you'd pick up 2 tenths easy. Time counts alot more down at the low end.

 

Mike meant regulator - the Mallory 110 comp is internally regulated to 7#

... and Mike has prolly forgotten more than I'll ever know about making a car run strong.

 

I ran the 850 DP (#4781) for many years. Once it was tuned, it ran flawless.

I know every combo is different but I found with mine I ran 80 jets in all four corners, 31 pri. squirter and a 35 secondary. The accel. pump cam was either yellow or white and was in the #2 hole. Mine had .020" clearance in the accel. pump arm at WOT. It left clean and hard, with 3.90 gears and a SP converter on high stall. My engine was less than yours in power. I also was running a B4B intake.
Fine tuning is where you'll pick it up. Amazing how much power and driveability is to be had once its sorted out. And that includes the distributor timing. I ran as much initial as I could get away with on pump gas.