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Volvo Owners Club Forum (https://www.volvoforums.org.uk/index.php)
-   700/900 Series Sales (https://www.volvoforums.org.uk/forumdisplay.php?f=176)
-   -   Could I have some 1st opinions on this (https://www.volvoforums.org.uk/showthread.php?t=318663)

griston64 Aug 31st, 2021 09:28
Quote:
Originally Posted by jonnyf90 (Post 2766710)
IMO they were introduced for the caravanners, especially as it was offered with the M90 'box, and everyone knows the slushmatic seems to poo itself if towing anything heavy (like a caravan) up a long incline.

Slightly sneakily though, Volvo fitted the ridiculous 4.1:1 diff, meaning 0-60 times weren't too much slower than the 3.0's, however at the expense of being at 3,000rpm at 70mph.
For comparison, my 940 Turbo would sit at 70 at a more reasonable 2,250rpm.

Cheers
What diff was in your 940 Turbo ? I'm sure mine is higher than 2,250rpm at 70

Laird Scooby Aug 31st, 2021 10:16
Quote:
Originally Posted by 360beast (Post 2766765)
It doesn't have a cat, haven't looked in to the engine bay too much and I won't fir a while now
No cat and no Lambda usually means LH2.2, can't make out the MAF clearly enough to see if it has a mixture screw on it, even blanked by an anti-tamper cap.

Looks like it's had replacement injectors as well. :thumbs_up:

jonnyf90 Aug 31st, 2021 11:58
Quote:
Originally Posted by griston64 (Post 2766775)
What diff was in your 940 Turbo ? I'm sure mine is higher than 2,250rpm at 70
3.31 or 3.54 I think. Also had the "H" M90, so 5th was 0.70:1.

Cheers

jonnyf90 Aug 31st, 2021 12:03
1 Attachment(s)
Quote:
Originally Posted by griston64 (Post 2766775)
What diff was in your 940 Turbo ? I'm sure mine is higher than 2,250rpm at 70
Using the pretty awesome website: https://www.blocklayer.com/rpm-gear.aspx

We can see that it's about right.
What's yours at? Is yours an auto or manual?

griston64 Aug 31st, 2021 12:07
Quote:
Originally Posted by jonnyf90 (Post 2766817)
Using the pretty awesome website: https://www.blocklayer.com/rpm-gear.aspx

We can see that it's about right.
What's yours at? Is yours an auto or manual?
Without checking i'm sure its closer to 2750rpm at 70. Mine is a 3:54 Diff M90. I'm pretty certain 940 saloon's came with a 3:31 diff though

griston64 Aug 31st, 2021 12:23
Quote:
Originally Posted by jonnyf90 (Post 2766815)
3.31 or 3.54 I think. Also had the "H" M90, so 5th was 0.70:1.

Cheers
Intersting that your 940 saloon was also a 96 car which is the same as mine. I thought H2 and L2 M90 boxes were introduced in 97. The H1M90 was 0.81:1 in 5th

jonnyf90 Aug 31st, 2021 12:43
Quote:
Originally Posted by griston64 (Post 2766823)
Intersting that your 940 saloon was also a 96 car which is the same as mine. I thought H2 and L2 M90 boxes were introduced in 97. The H1M90 was 0.81:1 in 5th
Yes, I thought they were too. Maybe it had a transplant at some point, I couldn't honestly say. Was definitely less than 2,700 @ 70mph though.

Cheers

griston64 Aug 31st, 2021 12:48
Quote:
Originally Posted by jonnyf90 (Post 2766826)
Yes, I thought they were too. Maybe it had a transplant at some point, I couldn't honestly say. Was definitely less than 2,700 @ 70mph though.

Cheers
If it was a 3:31 diff it would be closer to 2500rpm at 70

Anyhoo thats enough thread hijacking for one day :teeth_smile:

jonnyf90 Aug 31st, 2021 12:50
Quote:
Originally Posted by griston64 (Post 2766829)
If it was a 3:31 diff it would be closer to 2500rpm at 70

Anyhoo thats enough thread hijacking for one day :teeth_smile:
Ha, yeah. Wish I had that dif in my current 960 to replace the ridiculous 4.1:1 it currently has!

Cheers

Laird Scooby Aug 31st, 2021 14:23
Quote:
Originally Posted by jonnyf90 (Post 2766815)
3.31 or 3.54 I think. Also had the "H" M90, so 5th was 0.70:1.

Cheers
The 3.54 diff gives the results you're getting, just tried it with my slightly different gear ratios but 3.54 diff and 4th @ 0.7:1 and 70mph is ~2300rpm (forgot the exact figure already) but my speedo registers ~77-78mph at a true 70mph. Aside from that, it gave identical results.

griston64 Aug 31st, 2021 14:47
But a 96 car should gave an H1M90 box which has a 5th gear of 0.81:1 which would give you 2750rpm at 70 with a 3.54 diff


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