Need Gear Recommendation

[Joe DeMarzo]

Dan, Lonnie and Glen, though I have never tried (yet) shifting at 5100 and 5500 seems low for a small block that doesnt make tons of HP? You would be putting the load on the motor at that RPM and even a good SB would not be able to carry that load/weight? Use the multiplication of the gears, converter and trans to do some of the work.

Mr Parker have you ever shifted that low in your bad *** corvette? Will call you in a few days to catch up.

[Glenn Hayes]

[QUOTE=Joe DeMarzo;364299]Dan, Lonnie and Glen, though I have never tried (yet) shifting at 5100 and 5500 seems low for a small block that doesnt make tons of HP? You would be putting the load on the motor at that RPM and even a good SB would not be able to carry that load/weight? Use the multiplication of the gears, converter and trans to do some of the work.

QUOTE]
I know it sounds crazy Joe, but we tried shift points all over the place,I learned that with my engine, this worked. It would run to 7000 rpm in the lights, but we often wondered if I had put a 4.33 gear in it that it would have been even quicker.
Of course, that was then, and I had stock heads, not he 'good' stocker heads and intake. Back then there was 30-40+ more HP in the good heads and intakes .

[B Parker]

Joe No never shifted that low and I'm not going to. Things have changed a lot since even the 90's. I would also have to ask Glen if he had a play back tack. I refer back to Mr Beards committ on what we really are shifting at without a play back tack . That was the first thing I learned when I put a play back in my car years ago. I was off at least 300 rpms on the 1st to 2nd shift. With the way I had the big block set up I would have to shift about 500 rpms ahead 1st to 2nd.

[Dave Noll]

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[Mark Yacavone]

Originally Posted by Dave Noll

Question since it kinda came up here. Is the difference between a 9" 4800 stall $350.00 E-bay special & a good high dollar convertor, the custom design billet stator ? And with that stator does "Flash speed" go up as well as torque multiplication ?

No easy answers here,Dave
The 9" GM is a common core from the 80's ...therefore they can be built a lot cheaper...That's why you see those deals out there.
Certain 9 " combos are capable of multiplying more torque than an 8", but you've really got to know what you're doing to match the performance throughout the entire quarter mile.

The 8" stuff are re-pops based on the old Opel design, so they cost more going in.
You really don't need a custom designed billet or fabbed stator for a Stocker.
Those are more for the high hp apps. or high RPM Comp style 7".
The RPM and stall may go up, but not necessarily the torque multiplication.

[B Parker]

Hey Mark did you get your phone charger? Glad you answered his question. I looked at it and said it's the same as getting a pair of street header on ebay for 300. Or spending more money on a good set of race headers. You get what you pay for. ( Most of the time) Why buy parts twice. Buy the best only once and you won't be sorry. A cheap convertor 350. A good convertor 850. Loosing heads up in the third round because you saved 500 on a convertor PRICE LESS!!

[Mark Yacavone]

Originally Posted by B Parker

Hey Mark did you get your phone charger? Glad you answered his question. I looked at it and said it's the same as getting a pair of street header on ebay for 300. Or spending more money on a good set of race headers. You get what you pay for. ( Most of the time) Why buy parts twice. Buy the best only once and you won't be sorry. A cheap convertor 350. A good convertor 850. Loosing heads up in the third round because you saved 500 on a convertor PRICE LESS!!

I did. Thanks again.
Hope to see you and that bad a** Corvette soon . Very impressive.

[Alan Roehrich]

Originally Posted by Dave Noll

Question since it kinda came up here. Is the difference between a 9" 4800 stall $350.00 E-bay special & a good high dollar convertor, the custom design billet stator ? And with that stator does "Flash speed" go up as well as torque multiplication ?

An 8" ATI converter is an all new converter, it is not built on used cores. The stator is not billet, but it is a new casting, ATI bought the original tooling, and then changed the design to remove the sharp corner between the stator fin and the ID and OD of the stator. The ATI stator has fillet radius joints, to prevent fin breakage. The advantage to the ATI stator is the shape of the fins, which are curved and shaped like an aircraft wing or propellor blade.

[B Parker]

Mark hope to see you this year at Indy. And hopefully I will be able to make a full pass by then. Dave if 350 is all you can spend on a convertor you may want to ask on this board if anyone has a good used 8" that they will sell you. This can be an expensive game. It's just cheaper to spend what money your going to once. Barry

[Dave Noll]

Barry & Alan, Thanks as well. Good info & advice.