Automatic Transmission 2-Speed thru 10-Speed GM Autos | Converters | Shift Kits
Sponsored by:
Sponsored by:

2.73 with ST3500 vs. 3.73's with SY3500

Thread Tools
 
Search this Thread
 
Old 11-15-2001, 11:53 PM
  #1  
TECH Enthusiast
Thread Starter
iTrader: (3)
 
LS1UltraZ's Avatar
 
Join Date: Nov 2001
Location: Alexandria, VA
Posts: 568
Likes: 0
Received 0 Likes on 0 Posts
Default 2.73 with ST3500 vs. 3.73's with SY3500

Right now i have 2.73's and have ordered a ST3500. I am confident about this combo.. however im having some second thoughts. I have access to a 3.73's rear for a really cheap price, and can change my order to a SY3500 or any of the Yank converters for that matter. Should i spend that lil bit extra money and get the rear and slap in something other than the ST3500??? I have been told that the 3.73 and SY3500 is an all around kick *** combo. Let me know what you think i should guys. And by the way I guess I am most concerned about performance on the street, however i still want those 1.7 60' times. 3.73's with SY3500 are capable of that arent they.. even with their 1.6 str? Im confused now! So give me advice

Thanks

Sean
Old 11-16-2001, 08:03 AM
  #2  
TECH Senior Member
iTrader: (7)
 
Ragtop 99's Avatar
 
Join Date: Nov 2001
Location: Bethesda, MD
Posts: 9,491
Likes: 0
Received 1 Like on 1 Post

Default Re: 2.73 with ST3500 vs. 3.73's with SY3500

You can get as good performance from the ST 3500 and 2.73 gears. The difference is that the SY3500 and 3.73s will have a much tighter feel. The downside is that with 3.73s you will have much higher freeway rpms. I like my 3.73s, but my suggestion is get the ST 3500 and see how you like it with the 2.73s. If it is too loose, then go to 3.73s.

BTW, I would not buy used gears; there is a greater chance of gear whine.
Old 11-16-2001, 08:14 AM
  #3  
LS1Tech Administrator
iTrader: (3)
 
RPM WS6's Avatar
 
Join Date: Nov 2001
Location: Schiller Park, IL Member: #317
Posts: 32,254
Likes: 0
Received 1,687 Likes on 1,208 Posts

Default Re: 2.73 with ST3500 vs. 3.73's with SY3500

I agree with Ragtop. But don’t think the SY can’t sixty good. Check my sig <img src="images/icons/smile.gif" border="0"> That was with 3.23s and BFG DRs @16 psi. Granted, I only did that once, but my regular 60s are in the mid to high 1.7s.
Old 11-16-2001, 09:17 AM
  #4  
TECH Addict
 
Crazyquik's Avatar
 
Join Date: Nov 2001
Location: Nawf Carolina
Posts: 2,556
Likes: 0
Received 0 Likes on 0 Posts
Default Re: 2.73 with ST3500 vs. 3.73's with SY3500

Isn't the SY like $9XX? I know the ST is closer to 750 or so (I had one). So why not get the ST and the gears <img src="graemlins/burnout.gif" border="0" alt="[Burnout]" />

J.
Old 11-16-2001, 10:14 AM
  #5  
TECH Enthusiast
Thread Starter
iTrader: (3)
 
LS1UltraZ's Avatar
 
Join Date: Nov 2001
Location: Alexandria, VA
Posts: 568
Likes: 0
Received 0 Likes on 0 Posts
Default Re: 2.73 with ST3500 vs. 3.73's with SY3500

Yeah all these things make sense.. i think that ill stay with the 2.73's and ST3500. If i want to change the gear, ill just go to 3.42's. Oh and Im goin to swap the whole rearend when I do, so I wont risk the whining...someone's rear out of a M6 would do <img src="images/icons/smile.gif" border="0"> So you think that if i moved up to the 3.42's I would be able to squeeze another 1/10 or so out of her as opposed to the 2.73's?? Thanks Guys


Sean
Old 11-16-2001, 11:25 AM
  #6  
LS1 Tech Administrator
iTrader: (14)
 
Patrick G's Avatar
 
Join Date: Nov 2001
Location: Victoria, TX
Posts: 8,244
Likes: 0
Received 32 Likes on 28 Posts

Default Re: 2.73 with ST3500 vs. 3.73's with SY3500

Agree on all counts. The ST3500 with 2.73 gears will launch about as hard as the SY3500 with 3.73 gears, but you'll still be able to keep you gas mileage and stronger gears. 2.73 gears are the best nitrous gears BTW. Very good for that.

Do the converter first and if you want some more ET reduction, go for the gears later.
__________________

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
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
Old 11-17-2001, 12:38 AM
  #7  
TECH Senior Member
iTrader: (7)
 
Ragtop 99's Avatar
 
Join Date: Nov 2001
Location: Bethesda, MD
Posts: 9,491
Likes: 0
Received 1 Like on 1 Post

Default Re: 2.73 with ST3500 vs. 3.73's with SY3500

[quote]Originally posted by LS1UltraZ:
<strong>
So you think that if i moved up to the 3.42's I would be able to squeeze another 1/10 or so out of her as opposed to the 2.73's?? Thanks Guys

Sean</strong><hr></blockquote>

yes. That's a good safe estimate. might get a little more with good traction, but at least you won't be disappointed.
Old 11-19-2001, 07:57 AM
  #8  
TECH Regular
iTrader: (5)
 
topfig1's Avatar
 
Join Date: Nov 2001
Location: San Diego CA
Posts: 475
Likes: 0
Received 2 Likes on 2 Posts

Default Re: 2.73 with ST3500 vs. 3.73's with SY3500

I have the New TCI #242932 3500 stall 2.o str converter and 3.42 gears. It feels great! 1/2 second off my 1/8 mile times and not very loose at all. for around $500.00 bucks, you cant beat it.

topfig
MGySgt USMC




All times are GMT -5. The time now is 07:02 AM.