redsscamaroboy

iTrader: (7)

I have run the Vig 3600 for over 1 year and just replaced it with a SS4000 .The Vig 3600 would hang around 2700-2900 in traffic. But the Yank SS4000 hangs around 3200-3400 in traffic-huge difference! I did not expect it to be this loose.
I could foot brake my car to 3000 with the Vig,but now i can get the tach to 4000 with the new vertor.
After getting used to driving this thing i started to play a little. The SS4000 pulls much harder through every rpm (high or low). And hits the tires MUCH harder now.
My best stock internal N/A 60ft was 1.70 with no spin at all,now i can hardly wait till the track opens April 4th to see the times and MPH difference. I hope the E/T streets can hook.
I will post times as they come.
Wow , what a HUGE difference between convertors and driving impressions.
Dave

boomcase

Nice , let us know how it goes.

JNorris

iTrader: (4)

Great info. I am sure it will improve your ¼ mile performance. Keep us informed.


I was under the impression that the Vig3600 was underrated and was really closer to a 4300 stall.
It is interesting that the SS4000 is actually much looser that your Vig3600 converter and that you can brake stall it 4000rpm as opposed to the vig3600 brake stalling to 3000rpm.

Is the SS4000 underrated as well?

John

redsscamaroboy

iTrader: (7)

John,i think that my Vig 3600 was a sick little convertor- I did not 60ft like anyone else with the same vertor and i thought the poor performance was from my untuned combo of mods. But since rebuilding the trans (found nothing bad inside,just normal wear for 77,000 miles)and replacing the vertor i found that the traction off the line is much worst with this vertor,BY FAR.

On the highway my 3-4 upshift is set to 123mph and with the Vig i seemed to flatten out and lumber along just to get there.
But with the Yank it comes and goes with ease and shows no real signs of being unhappy,if you know what i mean.
I don't know about under rating on the Yank but i know that it IS much looser than i expected.
The Vig on anything over half throttle would hang around 3800-4100,and the Yank SS4000 does a little higher than that,maybe 4100-4300.
On a 150 RWHP shot of gas the Vig would shoot to 5200-5400 and stay there,the Yank is said to be able to hold up to a 150 shot. I just think it is a completely different animal all together.
All and all with out track times to show for it ,i am happy with this new set-up.
Dave

Colonel

"I could foot brake my car to 3000 with the Vig,but now i can get the tach to 4000 with the new vertor."

If that's the case then something is not right. You should not be able to footstall a SS4000 to 4000...not even close. What RPM can you get footstalling with the selector in 2nd? Also, not being able to hit 3000 is too low for a Vig 3600...sure it wasn't a 3200? You didn't happen to do a second gear test on it didja?

The SS4000 shouldn't feel loose compared to a Vig 3600.

Ragtop 99

iTrader: (7)

I agree that being able to footbrake to 4000 is an issue. 3000 for a Vig 3600 doesn't sound that far off if you are doing it in first gear. Maybe in 2nd gear you can go higher, but my brakes start puching through when I get up in the high 2's with the Yanks I've had.

redsscamaroboy

iTrader: (7)

I have not tried the second gear foot brake with the Yank yet. But with the Vig3600 w/#7 pump (that's what i bought used,or so i was told) would hit 4100 with drag radials and a second gear foot brake.
I did stop at a light and foot braked the Yank to around 3800 to 4000,BUT it is possible that at the end i could have had the tires start to slip. It was just a quick second and then i drove off like normal. I did talk to Mike about the YPT 4400 and he told me it's not a great idea with 3:23 gears. The box was labeled "SS4000 LS1" but i might have gotten the wrong convertor. I was really shocked when i drove the car and found it was much looser than my old vertor. 500 to 1,000 rpms higher to move in traffic at all times.
How would i find out which vertor i got? I am not unhappy with this convertor but now i wonder what's up.
Dave

Humanoid

iTrader: (3)

My box says ss4000e. What is the e?

Oh and mine footbrakes to anout 3k and then the tires break loose.

JNorris

iTrader: (4)

I think the "E" is for extreme which I think is a nitrous version of the converter.


John

JNorris

iTrader: (4)

Shift extension at WOT would give you an idea of what the stall speed of the converter is as well as foot brake rpm.

If you can foot brake your car to 4000 in 1st gear than you probably do not have a SS4000 converter. Maybe a SS5000?

My vig3200 falls back to ~4600rpm on a WOT shift. My old PT4xxx only fell back to 5900-6000 on a WOT shift.
I read in one of the Colonels posts that his SS4000 falls back to about 5300 - 5400 on WOT shifts.
Use these numbers as a guide to help determine your stall speed.

As long as you are happy with the converter does it really matter what the stall speed is?



John

redsscamaroboy

iTrader: (7)

When i ordered the convertor we talked about the nitrous kit i have on the car now and Mike told me i could spray up to a 150 shot with the new convertor.
I really only care about N/A times and might sell the nitrous kit that i have. I will have to call Yank and talk to Mike about what my car is doing. Maybe he will be able to shead some light on this.
Dave

Colonel

All that E means is that it's a 6-lug (instead of 3) converter with a posi-lock clutch that has kevlar linings. It's not going to hurt the NA performance.

JNorris is right about my shift 5300-5400 extension.

redsscamaroboy

iTrader: (7)

Colonel-what are your shift points set to,rpm and mph?
1st gear shift is 6100 and 43 mph, 2nd is 5850 at 83 and 3rd is 5850 at 123. my shift extension is right around 5200. Ya know my tach could be a little goofy. I will try and verify rpm with my Predator scanner.
My rev limiter is set to 6200,is that good or too low for peak n/a performance with stock internals?
Dave

redsscamaroboy

iTrader: (7)

I drove the car last night and found that i can foot brake 1st gear to 3600 before the tires start slipping. And if foot braked in 2nd gear i can hit 4300 rpm.
Anyone else with the SS4000 able to do that ?
My shift extension is 5200-5300 also.
Dave

JNorris

iTrader: (4)

Based on the above info I would now say you have a SS4000. Enjoy it!

John

Colonel

My shift points are about 6700 and are not at all based on MPH (you can do that with an '02.)

Z-Rated

I thought 01s and 02s are the only ones that you can see how big the stall is when you put the tranny in "2" ??? or am I loosing it?

redsscamaroboy

iTrader: (7)

Thanks Colonel.

Drew the 2000's do that too. my buddy has a 99 and his will not but my 00 will.
Dave

Revelation222

I would have to agree with the Colonel on this one. Have you tuned it or had it tuned? (i.e. adjusted shift points, exsts., and lockup?) if not, I would have to say that you could make it feel tighter in that respect.

FWIW, My VIG 2800 felt like a pt4000 without the necessary adjustments prior to my dyno tune. I could footstall to around 3200 before, now I can only get it up to 2200 or so. Once I upgrade to 373's Ill have to get it adjusted again, and when I get my SS4000 I will need another adjustment. Tuning is just part of restalling the tranny IMO. Good Luck to you.

Stone0fFire

WTF i swear with my SS4000,
my shift extention is like 4800..
but that was with 2.73
does colonel get higher SE because he's making more tq?
or because he's spinning the system higher?

i want higher SE..