Shift extension differences
I have a Y3000 in the LT1 and was thinking about doing a TC for my LS1, but something a little more aggressive since the Y3000 does not seem to provide much after the middle of 2nd gear.
Does anybody know what the shift extensions are for a SLP3300, ST3500, and SY3500 are for an LS1 and how the drivabilities compare? It's a mostly street-driven LS1 w/ 3.23s? (I have Nittos but can get ET Streets for the track). Most of my runs are from a roll (lean me towards the SY3500) but the ST3500's price is right and seems to be the majority's choice.
Thanks in advance.
Does anybody know what the shift extensions are for a SLP3300, ST3500, and SY3500 are for an LS1 and how the drivabilities compare? It's a mostly street-driven LS1 w/ 3.23s? (I have Nittos but can get ET Streets for the track). Most of my runs are from a roll (lean me towards the SY3500) but the ST3500's price is right and seems to be the majority's choice.
Thanks in advance.
My friends LS1 with a ST3800, has as extension of 5200 with a shift point of 6400. I here the ST3500 is 4500-5000 extension depending on engine upgrades, weight and shift point.
I have a tight 2600 rpm Vig (3 or 4 pump, can't remember). The shift extension is 4700 rpm, with a shift point of 6400. Flash stall is 3500 in my car (Stroker, baby). <img src="gr_eek2.gif" border="0">
Jim
<img src="graemlins/camaro.gif" border="0" alt="[Chevrolet]" />
I have a tight 2600 rpm Vig (3 or 4 pump, can't remember). The shift extension is 4700 rpm, with a shift point of 6400. Flash stall is 3500 in my car (Stroker, baby). <img src="gr_eek2.gif" border="0">
Jim
<img src="graemlins/camaro.gif" border="0" alt="[Chevrolet]" />
Thanks guys.
RPM WS6 - Is the SY loose w/ 3.23s and are you using stock shift points?
Anybody else with w/ SLP3300 or SY3500 or ST3500 experience?
[ February 20, 2002: Message edited by: Gearhead ]</p>
RPM WS6 - Is the SY loose w/ 3.23s and are you using stock shift points?
Anybody else with w/ SLP3300 or SY3500 or ST3500 experience?
[ February 20, 2002: Message edited by: Gearhead ]</p>
Joined: Nov 2001
Posts: 34,609
Likes: 2,518
From: Schiller Park, ILL Member: #317
[quote]Originally posted by Gearhead:
<strong>Thanks guys.
RPM WS6 - Is the SY loose w/ 3.23s and are you using stock shift points?
</strong><hr></blockquote>
It's not loose at all to me (but that's a perception issue <img src="gr_images/icons/wink.gif" border="0"> )
My shift points are not stock. They're at about 6200rpm.
<strong>Thanks guys.
RPM WS6 - Is the SY loose w/ 3.23s and are you using stock shift points?
</strong><hr></blockquote>
It's not loose at all to me (but that's a perception issue <img src="gr_images/icons/wink.gif" border="0"> )
My shift points are not stock. They're at about 6200rpm.
SY 3500 will feel a bit looser than your Y3000, but is easy to launch hard with 3.23s.
Too see torque mulyiplication & shift extension comparisons check out:
http://www.converter.cc/super_yank_dyno_overlay.htm
http://www.converter.cc/thruster_fam...rque_gains.htm
Too see torque mulyiplication & shift extension comparisons check out:
http://www.converter.cc/super_yank_dyno_overlay.htm
http://www.converter.cc/thruster_fam...rque_gains.htm
Ragtop 99,
How would the ST3500 compare to the SY3500 in terms of looseness when driving around town? Is it tighter and do you think it would be similar to the Y3000?
How would the ST3500 compare to the SY3500 in terms of looseness when driving around town? Is it tighter and do you think it would be similar to the Y3000?
Trending Topics
The ST3500 is going to feel a little tighter than the SY3500 at most rpms because of its higher stall torque ratio. The higher STR helps the ST3500, but the larger diameter of the SY3500 narrows the gap. The SY3500 is a better nitrous converter.
__________________

2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.

2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.







