LS1UltraZ

iTrader: (3)

Ok im gettin to the end of my bolton quest and looking for 11's on DR's. Its important to me to have an 11sec street car on street tires NA and stock engine, cuz its my goal <img src="gr_images/icons/wink.gif" border="0"> Im adding ASP pulley's and FTRA to my list of mods in the sig. I know i need to get that 60' down, and I will.. eventually.

Ok so im looking at swapping out my 2.73's for some 3.42's. What do I stand to gain by lookin at my mods, and what rpm and in what gear do you go through the traps? I dont like the 2.73's cuz i am always shifting right at or right before the traps. And i dont want to go too high with gears, cuz i already have problems with traction and i will only be running Nitto DR's.

Please advise
Sean

<img src="graemlins/camaro.gif" border="0" alt="[Chevrolet]" />

TanRchy

3.73's,3.73's,3.73's,3.73's,3.73's,3.73's <img src="gr_images/icons/cool.gif" border="0">

LS1UltraZ

iTrader: (3)

wouldnt 3.73's and a 2.5 STR verter actually slow me down by causing massive traction problems in my 60' on DR's? I wont be using ET streets.

Thanks
Sean

ExtremeZ28

nittos arent a bad tire at all i've cut 1.9's in em with a 6 speed smoking my clutch all to hell <img src="gr_stretch.gif" border="0"> i've since sold the nittos and am looking at clutches but anyway 1.6 and 1.7 60's are not uncommon with nittos i think it can be done...get the 3.73's you WONT regret it and i bet you'll be thanking me(others) later <img src="gr_images/icons/wink.gif" border="0">

2002SS

Talk to Keymaster on this forum,

He has a 3500 stall and runs 373's and he runs really strong with them. They really woke up his car and it throws you in your seat when you take off.

Dan

Intelman34

With 2.73's, I was scared of LS1's <img src="gr_sad.gif" border="0">

With 3.73's, LS1's are fun to beat <img src="gr_grin.gif" border="0">

Straight Line Performance

I swapped out my 2.73 rear with 3.23s, and the car feels alot better. Its way more responsive in town and just more fun to drive. I don't have any track comparisons though, but it definitly feels faster. IMHO, if you are into racing, get rid of the 2.73s.

Later, Albert <img src="gr_stretch.gif" border="0">

Damian

iTrader: (89)

Well lets see here........

The LS1 motor makes all it's power from 3K up. Wouldn't you want a gear to put you into that power band? Or do you want a gear that takes forever to get out of the low end, where the LS1 doesn't make ANY power? It's a mix of common sense and physics really <img src="gr_images/icons/wink.gif" border="0">


Seriously, 2:73's are the absolute worst gear you could run w/ an LS1. With a decent set of sticky tires and a 3:73 swap, I am willing to be you'll drop 4 tenths and gain ~2-3 mph. Go for it.


Josh

[ January 29, 2002: Message edited by: Damian ]</p>

LS1UltraZ

iTrader: (3)

Thanks for your reply Damian, I value your input <img src="gr_images/icons/wink.gif" border="0">

So you honesty think Nittos willbe able to hold the ST3500 and 3.73 combo? I dunno, seems to me I will get even worse than my 1.9 60' now. But I guess i need to learn how to drive the verter better. Anyone got a 3.73 rear for sale? <img src="gr_images/icons/wink.gif" border="0">

Sean

Ragtop 99

iTrader: (7)

[quote]Originally posted by LS1UltraZ:
<strong>Thanks for your reply Damian, I value your input <img src="gr_images/icons/wink.gif" border="0">

So you honesty think Nittos will be able to hold the ST3500 and 3.73 combo? I dunno, seems to me </strong><hr></blockquote>

I've seen it done on a good track in a car that had some weight removed. However, if you can't hook now, more gear isn't going to help. Make sure you heat your nittos well; learning to really roast them allowed me to go from 1.9x on them to 1.6x in the good weather.

3.42s can be an option too, but I like my 3.73s <img src="gr_stretch.gif" border="0"> .

Damian

iTrader: (89)

[quote]Originally posted by LS1UltraZ:
<strong>Thanks for your reply Damian, I value your input <img src="gr_images/icons/wink.gif" border="0">

So you honesty think Nittos willbe able to hold the ST3500 and 3.73 combo? I dunno, seems to me I will get even worse than my 1.9 60' now. But I guess i need to learn how to drive the verter better. Anyone got a 3.73 rear for sale? <img src="gr_images/icons/wink.gif" border="0">

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


I feel all warm and fuzzy inside <img src="gr_emb.gif" border="0"> lol

While I am not a fan of Nittos, you can get them to hook decent when they're hot. I mean you have to really smoke the **** out of them and they will hook decent. If you're wanting to stick with a good drag radial, I highly recommend some BFG's in the future. I have ran both Nittos and BFG's at the track, and there is no comparison. Nitto's hook like street tires compared to a BFG.

You car will haul *** with 3:73's. It will feel like a whole new beast, trust me.


Josh

LS1UltraZ

iTrader: (3)

Ok good to go. 3.73's will go in <img src="gr_images/icons/cool.gif" border="0">

Sean

Damian

iTrader: (89)

[quote]Originally posted by LS1UltraZ:
<strong>Ok good to go. 3.73's will go in <img src="gr_images/icons/cool.gif" border="0">

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


Sweet! Keep us updated. Just remember to give your gears a proper break in. If you come out of the shop parking lot sideways, you will be back there very soon <img src="gr_images/icons/wink.gif" border="0"> . Keep us posted!


Josh

Supertrapped

I'm keeping my 2:73s. I'm gonna see how far I can go with them <img src="gr_stretch.gif" border="0">

LS1UltraZ

iTrader: (3)

Question for 3.73r's.. what rpm's an in which gear do you go through the traps. Assuming you have like a 111-114 trap speed that is <img src="gr_images/icons/wink.gif" border="0">


I wanna be roaring through the traps <img src="graemlins/gr_jest.gif" border="0" alt="[jester]" />

Sean

Damian

iTrader: (89)

[quote]Originally posted by LS1UltraZ:
<strong>Question for 3.73r's.. what rpm's an in which gear do you go through the traps. Assuming you have like a 111-114 trap speed that is <img src="gr_images/icons/wink.gif" border="0">


I wanna be roaring through the traps <img src="graemlins/gr_jest.gif" border="0" alt="[jester]" />

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


A lot of this will depend on tire size. While I can't be exactly "sure" what rpm you'll be crossing at, it will definately be over 5500 rpm's which is just about perfect.

LS1UltraZ

iTrader: (3)

Ok sounds good.. Im putting on my Zr1's this weekend.

17" all around
275/40/17 on front
315/35/17 dr on back

After thinking bout it some more, i *might* have to make a small sacrifice and go with 3.42's. Why? Well i can pick up a whole new rear for about $300 (lots cheaper than puttin diff gears in my car), AND i could have a backup, just in case i were to break something.. hhehe lets hope not. <img src="graemlins/gr_judge.gif" border="0" alt="[judgement]" />

I believe I would still get a nice improvement dont ya think?

Sean

Straight Line Performance

Oh yes, 3.42's will be a definite improvement <img src="gr_grin.gif" border="0">
I think you will be happy with them. The new gears will also make your converter feel tighter around town.

Albert

Damian

iTrader: (89)

I agree, 3:42's is another good choice for an A4. Compared to 2:73's, 3:42's will still wake the car up like you wouldn't beleive. ANYTHING is better than 2:73's. 3:42's will also be a tad nicer to your wallet on gas. Good luck and let us know how you like em.


Josh

CHRISPY

You can also buy my used 3.42's for 75 bucks plus shipping <img src="gr_grin.gif" border="0">
They are a GREAT all around gear <img src="gr_grin.gif" border="0">
Chris