3.73 or 4.10?

[awesomeame]

2002 m5, stock 3.23 w/lsd in there right now. i haven't dynoed since my cam & other mods, but i'll be aiming for 215-230 rwhp when i do dyno in the spring.

so which gears should i go with? i want to hit the 1/4 as close to redline as possible, but keep my stock rpm limiter. this is for purely n/a application.

thoughts?

--matt

[ November 18, 2003: Message edited by: awesomeame ]

[ November 18, 2003: Message edited by: awesomeame ]</p>

[Bliggida]

4.10's

[Justin Kirkham]

3.73 for a daily driver. I have heard some complaints that 4.10 is a little too steep. BUT if you are willing to sacrifice around town and everyday drivability, go for 4.10.

-Justin

[awesomeame]

nope, not my daily, don't care about fuel efficiency. thanks for the responses [img]smile.gif[/img]

--matt

[Sandman]

With the 30% overdrive in our cars the 4.10 are not even that bad for daily drivers. Just not good for highway driving. you can do 150 at 5570rpms.

[WickEdSix9838]

3.73's go through around 5k on mine, go w/the 4.10's!

[ravenp]

Get slicks too if you get 4.10's ! :D

... and let me take a pass or 2 with them next year ;) :D [img]graemlins/rofl.gif[/img]

[awesomeame]

i just don't want to end up having to shift into 4th 200 feet before the line...that would suck [img]graemlins/thumbsdown.gif[/img]

--matt

[WickEdSix9838]

it wont be 200 feet before the line...it'll be further than that...

[FunkZ]

Yeah, I was around 5000rpm in 3rd with stock 3:23's at the line. 3:42's would probably be red line and anything higher you're into 4th gear.

Tim LeGros said he didn't get any better times from 3:73's than he did with 3:42's.

I would think that the gain from going 3:73's over 3:42's is lost due to the extra shift required.

[95Batmobile]

<blockquote>quote:</font><hr>Originally posted by awesomeame:
i just don't want to end up having to shift into 4th 200 feet before the line...that would suck [img]graemlins/thumbsdown.gif[/img]

--matt<hr></blockquote>

With my little 3.4 I shift out of 3rd at about 112 on my speedo (not correct yet) which is about 94mph... You'll be in some trouble I think with 4.10s.

[imported_admin]

<blockquote>quote:</font><hr>Originally posted by FunkZ:
Tim LeGros said he didn't get any better times from 3:73's than he did with 3:42's.<hr></blockquote>

Nor did I with my 3.73's or James with his 4.10's. James went back to 3.23, I went back to 3.42.

With 3.73 or 4.10 in a manual you hit fourth gear a long ways before you hit the end of the track... and regardless of what's in the back, fourth gear in a manual (or third in an auto) is a DOG.

Look at the timeslips page. The fastest cars all have 3.42's. There's one with 3.73 but I think he could go even faster if he went down to a 3.42 or 3.23.

High gears are not for everyone...

[95Batmobile]

<blockquote>quote:</font><hr>Originally posted by Stefan:


Nor did I with my 3.73's or James with his 4.10's. James went back to 3.23, I went back to 3.42.

With 3.73 or 4.10 in a manual you hit fourth gear a long ways before you hit the end of the track... and regardless of what's in the back, fourth gear in a manual (or third in an auto) is a DOG.

Look at the timeslips page. The fastest cars all have 3.42's. There's one with 3.73 but I think he could go even faster if he went down to a 3.42 or 3.23.

High gears are not for everyone...<hr></blockquote>

Stefan was your top end better with 3.42s or 3.73s? My car pulls 3rd gear hard now... it used to hit a damn brick wall when it shifted to 3rd at 70mph but now it just keeps pulling all the way through 3rd like any other gear.

[imported_admin]

<blockquote>quote:</font><hr>Originally posted by 95Batmobile:
Stefan was your top end better with 3.42s or 3.73s? My car pulls 3rd gear hard now... it used to hit a damn brick wall when it shifted to 3rd at 70mph but now it just keeps pulling all the way through 3rd like any other gear.<hr></blockquote>

Third was fine... but with 3.73's you fly right through third and then you're suddenly in fourth, where it's a dog.

On the highway I couldn't even downshift into third with 3.73's because it would almost redline. With the 3.23's or 3.42's third is a powerhouse at highway speeds, with 3.73's third is almost unuseable.

[ November 24, 2003: Message edited by: Stefan ]</p>

[awesomeame]

<blockquote>quote:</font><hr>Originally posted by Stefan:
Look at the timeslips page. The fastest cars all have 3.42's<hr></blockquote>

for the poweradder ppl.

for the n/a l36 application, the top 4 guys use either 3.73 or 4.10. i'll be sticking to n/a. sorry i guess i should have specified that in my original post.

stefen what do you think for n/a? 3.73 or 4.10? any n/a people have an opinion on this?

--matt