DYNO 2003 & Calculating shift points.

87vette81big said:
Its setup Super Rich with .076 Primary Jets & "CC" Secondary Metering Rods.
Likely have to Jet down for the 334 ci SBC with The ISKY HYD Cam chosen.
Click to expand...
I bought Cliff Ruggles book and parts to modify & calibrate the Q-Jet. He also included a "recipe"
for me to follow. I was about to start on it when those China lifters set me back. Now that the
engine is correct, I'm cleaning the basement and tossing lots of junk parts that I don't need anymore.
Lotsa money wasted.:mad: It hurts! On rainy days, I will work on the Quadrajet.
 
When I was on the Corvette Forums Everyone swore by Vigilante Torque Converters. A performance brand name out out by Precision Torque Converters.
ITS A funny looking Purple Thing that costs $900.00 too.
The guys that used swore FASTER THAN GODSPEED.....I had my Doubts.
None Ever Drag Raced.
The Few that did And showed timeslips I. know they used Nitrous Oxide off the Line.
A few showed Vids....Progressive Digital control black box NOS Laughing gas.

Anyhow...The Fastest guy had a M6 Manual C4 Corvette with a ZF Trans.
9's...Full Nitrous Run.. He didn't hide that fact.

B&M Holeshot OK.
TCI with an Anti Balloon plate is a High end type Race torque converter.

Hughes is very Good.

Get your Trans Am back together .
See how the Isky Cam performs.
I am sure better than prior.

If you want a Good torque converter its $650-$2,000. $2000 race custom built.
 
yes its damn depressing what quality parts cost,
and once you can recognize the difference between cheap crap and quality its gets even more depressing,
the only good factor is that a few well matched quality parts generally out perform,
the same total expenditure in a larger collection of mismatch cheap crap by a noticeable margin
 
I don't need a $2000 converter, not even $900. Remember, it's a 334.
Car could weigh as much as 4000#. The only thing I drag race is the
clock. On the highway with no-one around. Mainly to gauge the car's
performance and if the latest change I made was beneficial or not. Can't
trust lining up against anyone anymore. Also could not even get away with
the last ride you took in your 63 Grand Prix with open exhaust around here.
Now there are also cameras everywhere.

When they were on ebay, I was looking at Rev-Max converters. Since they
left ebay, their prices have gone up considerably. But I don't know if they are
any good or not.
 
Last edited:
I thought the same.
I have a 2,000 Rpm stall converter in my 1987 Corvette.
Its Painted Blue.
I recall paying just under $300.00 shipped.
Its a custom rebuilt modified unit.
Furnace brazed . Torrington needle bearings.
Buckeye Torque converters in Ohio.
Its a Small Shop.
100 % satisfied. They have a small webpage with thier phone number.

The Torque converter in the '63 G.P. TH400 is Bone Stock from a 1976 Grand Prix .
 
So I looked at the first 2 intake pictures again - Weiand 8000 and Stealth. Damn if
that 8000 is not a Stealth with an EGR valve and spreadbore mtg flange. I know that
the Stealth is a little taller, giving it a little more plenum volume and probably a smoother
path into the runners. But I bet I can come really close by adding a spacer to the 8000.
I'm leaving the 8000 in place. Besides, I have a lot of hours into the porting and mods.

I think I will try a four hole spacer to maintain the division between sides.
s-l500.jpg 510-108-37.jpg Canton phenolic.jpg
But I can also add a center divider to one of these.
F14604194.jpg
I have this Spectre convertible spacer/adapter also.
SPE-5765.jpg
I may try making the divider out of perforated aluminum.
perforatedx.jpg
And I like the idea of this screen under the spacer.
carbscreen.jpg
But how do you get it to stay in place and not leak?
 
"But how do you get it to stay in place and not leak?"
index.php

generally mounted between two intake carb gaskets with a 1/4" wide and thick bead of gasket sealant on both sides of both gaskets and that 1" spacer spreading the clamp load, with a third gasket between the carb base and spacer like shown
gaskette.jpg


http://www.amazon.com/Redi-Roll-Har...0473951&sr=8-1&keywords=8+mesh+hardware+cloth

http://www.crankshaftcoalition.com/wiki/Talk:General_Motors_transmissions

youll need a third gasket and the screen cut to size

index.php
 
Last edited:
Thanks Grumpy. I was comparing the height of the Edelbrock Performer RPM (not air-gap)
to the Weiand Stealth. The Edelbrock is at least 1" taller than the Stealth, and the Stealth is taller
than the 8000. So I have decided to leave the 8000 in place and try the spacer above with a
screen added.
my RA4 hood.jpg
I bought that bolt-on Ram Air IV hood. I don't know what brand it is, but it certainly is not flimsy
and could weigh almost as much as the stock hood. Not only does it have the "nostrils" to let cool
air in, it also has ovals cut out at the rear under the cowl to either suck in more cool air or can let
hot air out. So I will not have to add heat extractor louvers. The extra height of the hood will let
me add a carb spacer as well as change the air cleaner lid to the taller version so I can use the 1"
taller air filter.
While we are on the subject, while I was looking through my carb spacers and intake manifolds, I
found a few items I bought from ebay that I forgot about. Is this what I have to look forward to as
I get older - I'm only 49.
spread bore throttle brkt plate.png
This may come in handy.
victor jr plenum 2.jpg
I picked up this Victor Jr intake.....
turtle spacer 1.png turtle spacer 2.png
and it came with this home-made turtle spacer.
turtle spacer on victor jr 3.jpg
It will help direct the air/fuel mixture into the runners.
angled spacer for crossfire.png
I made this angled spacer a while back. If I ever got around to it, I was going to make a new top plate for a Crossfire
intake manifold and use this to mount the carb.
2 inch 4 hole spacer.jpg
It started out as one of these. I cut it down the middle and milled each half at an angle. Then I added locating pins
and drilled and tapped for a flat head bolt and bolted the 2 halves together with Permatex in between.
angled spacer Allstar.jpg
It turns out that someone makes these.
ac delete heater box.jpg
I need to make my engine compartment look like this before I'm ready to install the engine.
 
Last edited:
Thanks. $300. I bought it for function more than looks. I think it's going to do everything I need it to.
 
Carb spacers can do Wonders for Performance .
Just have to try it.
Tune the Engine to what it needs and Likes.
 
I could not try any spacers before, because the hood would just close with the same
Weiand 8000 intake, electronic quadrajet, and dual-snorkel air cleaner. This time
I will have options. The last time it ran, it was 99% emissions legal - and it passed too.
 
great pictures guys!
Pictures certainly help make what your referring too easy to understand,
for the guys that have never seen those components

and that hood certainly loos like it might help performance, clearance cooling and air flow rates
 
Grumpy said:
DD 2003c.jpg


the problem most guys face is the stock transmission shifts close to 5500-rpm
and the stock stall converter generally stalls at or below 2100 rpm,
where ideally you would want a 3200 rpm stall and a 3.45:1-3.73:1 rear gear,
to keep the engine operating in its most effective power range.
yes you'll very surely feel the difference in performance with the correct combo vs stock
Click to expand...

Grumpy, can I get your opinion of this torque converter?
http://www.jegs.com/i/ACC-Performance/082/48444/10002/-1?parentProductId=3307558

ACC Performance 48444 - Boss Hog Street Bandit GM Torque Converters

Applications Up To 650 HP

ACC Performance use a much larger industrial Torrington-type incased bearings, that give these converters the ability to handle thousands of pounds of torque, throughout the converter where needed. These bearings will handle more raw power and abuse that the higher horsepower engines produce. Some other companies use a smaller needle type bearing. Needle bearings are not incased, which makes them susceptible to picking up trash or debris from the transmission fluid, which can lead up to heat build up and failure.

ACC Performance has custom engineered their own turbine hubs. Many competitors use a chrome-moly steel hub that does not weld very well.

"four-corner" tack weld their turbine and impeller fins in order to maintain the highest quality, strength, and durability.

converters are also engineered with a single bolt pattern for the rotating mass. Some competitors use a dual bolt pattern converter to eliminate multiple part numbers (i.e./ TH-350 & TH-400's). These transmissions using the same converter with a dual bolt pattern, will add 3 to 4 pounds of weight to the converter. This adds weight to the rotating mass of the engine, costing you nothing but horsepower & torque.
 
I just got home Mike.
I have never used a Boss Hog ACC Torque converter.
I have heard of prior.
Yellow Bullet Drag Racing has a thread gping on this Brand.
I have to read yet.
Torque converter Reviews help to choose.
 
Its A Drag Racing Forum Mike.
All Bad Boys like me.
Bad Behavior Endorsed.
Go out and Race to settle matters.
 
You must log in or register to reply here.
Back
Top