"MY OPINION" (Diff Gears)

[BLACK 346]

Or Strokers with lots of torque than allow u to use 6th Gear with a 3.46 Diff from 90-100Km without any dramas!!

Yep, those too
Out of interest, what sort of torque does the Holden
Stroker put out compared to your typical bolt on and
tuned LS1?

[Ryzz]

Yep, those too
Out of interest, what sort of torque does the Holden
Stroker put out compared to your typical bolt on and
tuned LS1?

Well, when i had it on Sonnys duno, peak Torque at the wheels was only 519nm. The difference is, and quoting HSV Here

It makes 400nm (Engine) at Idle (which is what the old 185's made) and by 2800(cant remember exact RPM but close enuf) its got 475nm on tap.

Hope that gives you an idea. This is what makes it soo different from an LS1, just the fact that all the torque is there from the word go and you dont need to rev it out to get to that torque!!!

[BLACK 346]

Well, when i had it on Sonnys duno, peak Torque at the wheels was only 519nm. The difference is, and quoting HSV Here

It makes 400nm (Engine) at Idle (which is what the old 185's made) and by 2800(cant remember exact RPM but close enuf) its got 475nm on tap.

Hope that gives you an idea. This is what makes it soo different from an LS1, just the fact that all the torque is there from the word go and you dont need to rev it out to get to that torque!!!

Tks Ryzz, just dug out my dyno sheet from Sams
dynolog a couple of years ago now. This is for an LS1
with Redback catback and edit, Max Torque 640NM
(441ftlb) and average torque 612NM (429ftlb). That
is the only torque info I can get off the dyno sheet.
Would be interesting to compare the 2 driving wise

[Ryzz]

Tks Ryzz, just dug out my dyno sheet from Sams
dynolog a couple of years ago now. This is for an LS1
with Redback catback and edit, Max Torque 640NM
(441ftlb) and average torque 612NM (429ftlb). That
is the only torque info I can get off the dyno sheet.
Would be interesting to compare the 2 driving wise

Average & Max dont really mean anything. You need to look at the graph and see how much torque is available and when it comes in.

The comparission is that you can rule a straight line for the torque curve for the 5.7L Stroker. Thats what made them so Unique!!! Ill try and find the HSV Engine Dyno Graph that comes with the car and post it up to give you a better idea.

[OldManMunro]

Hi Guys,

I am also looking at installing a 3.9 diff on my Monaro M6. It would be great if I could get a ride in a car with that setup (understand that probably there are not 2 cars set up with the same mods throughout so it would not necessarily be an exact comparison, but would give a reasonable idea). I am in the Sutherland Shire, and would appreciate hearing from someone not too far away who would oblige.

Thanks

[XLR8 V8]

I was hoping to have it sit around 2000rpm while i was doing 110k's

Easy answer ... PUT IT IN 5th GEAR THEN!
6th Gear is there to minimise fuel consumption while cruising at 100+kph .... this is done by minimising engine rpm.
Of you want it to run at higher revs, just drop it back a cog ... isn't that why you have a manual box? I don't see the problem.

[seldo]

Easy answer ... PUT IT IN 5th GEAR THEN!
6th Gear is there to minimise fuel consumption while cruising at 100+kph .... this is done by minimising engine rpm.
Of you want it to run at higher revs, just drop it back a cog ... isn't that why you have a manual box? I don't see the problem.

Stop being so bloody logical Kris..

[KeenGolfer]

I didn't think going to 3.9's in my M6 made as big a difference as I expected either as a bolt on. But mine pulls pretty hard in 6th now

[Animal]

What did you really expect ?

Did you bother to test drive either set ?

I have driven both 3.9 & 4.11 in a M6 - 3.9 wins every day unless you are at the track.

Just my 2c

[ratter]

Put some smaller diameter rear wheels on it and get the same results as changing gears

[chris]

Easy answer ... PUT IT IN 5th GEAR THEN!
6th Gear is there to minimise fuel consumption while cruising at 100+kph .... this is done by minimising engine rpm.
Of you want it to run at higher revs, just drop it back a cog ... isn't that why you have a manual box? I don't see the problem.

couldn't of said it better myself.

[GHZ28]

I originally replaced the 3.45 in my 94 Camaro with 4.11, and smaller, 225/50 vs 245/50
tyres, which gave effective 4.41 ratio compared with standard size tyres. After 12 months went to 3.73, as with 4.11 first gear was now all but useless on the street.

Now, in hindsight, should have kept the 4.11s and enjoyed the "lighter" car it gave me, it was a true 5 speed with overdrive. 4.11 with M6 is a very good choice for everyday if you can handle first being useless under power. But fun....

gh

[lucas]

I have 4.11's in an M6 383ci with a 232 cam. It still won't pull hard in 6th @ 120km/h (2000rpm). I am cool with that. 6th gear is there just for freeway on cruise control.

Don't kick yourself too hard. On your criteria, you would not have been happy with the 4.11's either.

PS: 550nm+ @ 2500rpm - 6000rpm engine dyno

[BEARWOOD]

What did you really expect ?

Did you bother to test drive either set ?

I have driven both 3.9 & 4.11 in a M6 - 3.9 wins every day unless you are at the track.

Just my 2c

Well i expected alot more than what i got,but i suppose thats what happens when you listen to too many people without experiencing it yourself.
No i didnt drive either beforehand as i do not know anybody with even a similar setup as mine. Had speedo calibrated same day (atleast i was told it was done).Anyway to everyone who replied with a "logical solution" my original post said "MY OPINION" and thats how it stands. I was just trying to give some insight into this option for anyone else thinking of making the same mistake.

[BEARWOOD]

I have 4.11's in an M6 383ci with a 232 cam. It still won't pull hard in 6th @ 120km/h (2000rpm). I am cool with that. 6th gear is there just for freeway on cruise control.

Don't kick yourself too hard. On your criteria, you would not have been happy with the 4.11's either.

PS: 550nm+ @ 2500rpm - 6000rpm engine dyno

Ye thanks. Im over the 6th gear lack of pull but am still dissapointed with the difference in other gears,especially down low.Kind of thought i'd be losing traction at full throttle in 1st and itd be slippery in 2nd but nope it holds traction just fine.(not that i dont want traction just thought thats what would happen).