[AG]

If it's 5800 rpm, slip is 3.0%
If it's 5900 rpm, slip is 4.9%

Either way the converter is well coupled at the big end.

[AG]

As a comparison, my 9.5" Redneck converter slips 5.8% in my race car with 3.90 gears and a 28" tire.

[ta man]

Originally Posted by AG

As a comparison, my 9.5" Redneck converter slips 5.8% in my race car with 3.90 gears and a 28" tire.

That's a good convertor..what flash ?

[AG]

It's about 5000-5200 rpm.

[ta man]

Originally Posted by AG

It's about 5000-5200 rpm.

Thanks, that's impressive.

[AG]

My converter couples well for what it stalls at. The car operates between 5500-6500 rpm and goes across the line at 6600 rpm.

[Cliff R]

"373's 10 inch Continental 5800/5900 rpm at stripe..factory tach."

I thought that you were back to using the Continental 10" converter. I was using one as well and saw less than 200 rpm slip on the top end of the track using 3.42 gears. You'll have trouble finding something that will lock-up that tight on the top end of the track and still produce those 60' times.......

[ta man]

Originally Posted by Cliff R

"373's 10 inch Continental 5800/5900 rpm at stripe..factory tach."

I thought that you were back to using the Continental 10" converter. I was using one as well and saw less than 200 rpm slip on the top end of the track using 3.42 gears. You'll have trouble finding something that will lock-up that tight on the top end of the track and still produce those 60' times.......

I totally agree this old convertor has seen 4 different 455 combos and 3 sets of gears and just flat out works.
Andy(Torquewar) still has his Continental in his car and combined with a th 400 and 3.42 gears he has 60 footed a 1.46. We both currently consistantly 60 foot in the sub 1.5 range with full weight street cars. I'm currently holeshotting many bracket cars, slick cars and open header cars. Its pretty cool when the quiet street car leaves on them.

[ta man]

Last track day of the year, pulled the full exhaust off and added 18 inch collectors!
Weather looks great!

[ta man]

New bests 10.688/127.35 followed up 15 mins later before track closed with a 10.679/127.5. Had to leave relatively soft all day my 60 foots were 1.52 and 1.53 on those runs. Had a late start to the day..and track issues plus blew the tires off first run..didn't look good until I ran a 10.78 leaving easy at 127..I knew there was some et coming.
Great day overall, went over to check out a 71 GTO turns out it was a 290 cfm SD KRE headed 455 with an OF cam and a " Jim Hand" Continental Convertor! Word gets around I guess!

[PAUL K]

Great job!

[slowbird]

That's so.e good mph, get 60ft down and it should go .4s with that mph

[mchell]

Originally Posted by ta man

New bests 10.688/127.35 followed up 15 mins later before track closed with a 10.679/127.5. Had to leave relatively soft all day my 60 foots were 1.52 and 1.53 on those runs. Had a late start to the day..and track issues plus blew the tires off first run..didn't look good until I ran a 10.78 leaving easy at 127..I knew there was some et coming.
Great day overall, went over to check out a 71 GTO turns out it was a 290 cfm SD KRE headed 455 with an OF cam and a " Jim Hand" Continental Convertor! Word gets around I guess!

Nice! How did your DA compare to your last outing?

Not snowing yet?….lol

[ta man]

Originally Posted by mchell

Nice! How did your DA compare to your last outing?

Not snowing yet?….lol

Da was 435 vs 1400 last time out..so very similiar results with the Da factored in..the big difference was lack of traction yesterday vs full traction the week before.
Open exhaust really didn't gain much but it is hard to tell without full traction. The car was making a ton of torque out of the hole.
A few random thoughts moving forward:
Spending another season with the 373's,
I love my convertor more than ever
Car guys are great
X pipe or open headers with extensions...??? Which gives more power
Solid rollers?
There is more in this engine than I thought
I'm open to testing or trying things next year if someone suggests something
I hope there are et Pros's available soon
Don't forget my gas cap 40 minutes away at a gas station and waste time trying to buy one locally when I show up late at the track
Its amazing how many Pontiac guys are out there
Yesterday was first time at the track I only opened the hood to check things
I still need to figure out shiftpoints and need a tach that is close to being accurate
Have fun and keep tuning

[TCSGTO]

Where do you shift now? If it’s up over 6k solids may help but the hydros seem like they’re working. Are they the Comp “S” lifters with the correct oil band?

[mchell]

Originally Posted by ta man

Da was 435 vs 1400 last time out..so very similiar results with the Da factored in..the big difference was lack of traction yesterday vs full traction the week before.
Open exhaust really didn't gain much but it is hard to tell without full traction. The car was making a ton of torque out of the hole.
A few random thoughts moving forward:
Spending another season with the 373's,
I love my convertor more than ever
Car guys are great
X pipe or open headers with extensions...??? Which gives more power
Solid rollers?
There is more in this engine than I thought
I'm open to testing or trying things next year if someone suggests something
I hope there are et Pros's available soon
Don't forget my gas cap 40 minutes away at a gas station and waste time trying to buy one locally when I show up late at the track
Its amazing how many Pontiac guys are out there
Yesterday was first time at the track I only opened the hood to check things
I still need to figure out shiftpoints and need a tach that is close to being accurate
Have fun and keep tuning

Looks like you had some great air…

In reference to your exhaust. Exhaust is weight. Especially 3” with full x , dumps and full over the axle tail pipes……remove it all after the headers and you will go faster…I don’t mess with it because I’m lazy , but I’ve gone .15 -.2 quicker with no exhaust, mostly due to weight removal. I do go a tad quicker using my dumps with a full 3” X…..

I’m not chasing et much anymore as I’m carrying too much weight….no point really. Keep my hood closed these days!

[ta man]

Originally Posted by TCSGTO

Where do you shift now? If it’s up over 6k solids may help but the hydros seem like they’re working. Are they the Comp “S” lifters with the correct oil band?

Only at 5800...I'm not sure which 857's that they are..it wouldn't go quicker shifting higher..I'm thinking solids for next year when they are available!

[ta man]

Originally Posted by mchell

Looks like you had some great air…

In reference to your exhaust. Exhaust is weight. Especially 3” with full x , dumps and full over the axle tail pipes……remove it all after the headers and you will go faster…I don’t mess with it because I’m lazy , but I’ve gone .15 -.2 quicker with no exhaust, mostly due to weight removal. I do go a tad quicker using my dumps with a full 3” X…..

I’m not chasing et much anymore as I’m carrying too much weight….no point really. Keep my hood closed these days!

64 lbs of weight
Not as much gain as I thought..sooner be a tenth slower and be more mellow for sound...but see what happens when I start shifting higher..

[Jim Moshier]

Great job!

[Gach]

The old rule of thumb, for your power level for every 100# lost , is worth a tenth. So 64 lbs is roughly 1/2 tenth. When your up in 800 hp range 200 lbs is worth a tenth. 2 point more compression is worth 20 hp, sometimes a little more. Not that you would want to go there. Nice to see that’s your best ET to date. Congrats hard work and $ spent paid off.