Hey - did you know if you click on the title of a thread it will take you to the first unread post since you last visited that thread?
but were afraid to ask: 
STOP!! Never post your email address in open forums. Bots can "harvest" your email! If you must share your email use a Private Message or use the 
smilie in place of the real @
OP
Guest
Guest
Guest
Offline
kellysguy said:
...although I could use a 680-250... :laugh:
-
Hi Guest!
If you appreciate British Car Forum and our 25 years of supporting British car enthusiasts with technical and anicdotal information, collected from our thousands of great members, please support us with a low-cost subscription. You can become a supporting member for less than the dues of most car clubs.
There are some perks with a member upgrade!**Upgrade Now**
(PS: Subscribers don't see this gawd-aweful banner
Share this page
...although I could use a 680-250... :laugh:
RickB
Yoda
Offline
RichBall said:Running a 1:1 4th at 3000 RPM and a 3.55 gear ratio should put you right at 60 MPH. At 3500 it would be at 71 MPH.
RickB said:Wow - that's going to be a real game changer.
Running your standard 4 speed transmission what kind of rpm would you see at 60mph? Around 3K? A little more maybe 3.3K?
That would be ultra cool.
Wow - no need for a 5 speed swap then.
My experience has been that 1st gear has more than enough grunt if things are sorted at all. A difference of 15% shouldn't hurt much down there. However up in 4th it would be like having overdrive!
Can these be fitted to all Spridget pumpkins? No real reason to change the 3.7 as that's so close already, but I have a couple 4.2 diffs that would be happier as a 3.55 for sure!
ShawnC_at_Moss
Jedi Hopeful
Offline
I am sure I can find something in the returns pile. :laugh:
OP
Guest
Guest
Guest
Offline
Hey, whatcha should look into is the BMW 5 speed swap the guys in Germany are doing. It's the ZF trans w/ removalble bell housing. 81-83 318 IIRC. That's the only thing that'll be half way findable ( is that a word?) on this side of the pond.
ShawnC_at_Moss
Jedi Hopeful
Offline
Can my Midget afford parts that came out of a BMW?
RickB
Yoda
Offline
ShawnC_at_Moss said:
Good question Shawn,
It's a supply and demand thing.
Luckily the supply of wrecked BMW's and those upgrading to newer is large. The demand isn't huge yet especially since Spridget owners haven't perfected the swap yet.
I've seen good BMW transmissions out there for what you might expect to pay for a Datsun 5 speed or less.
ShawnC_at_Moss
Jedi Hopeful
Offline
I will keep my eyes open AND I just had a buddy email me that he might have a line on a Datsun 5 speed. My hands are sweaty.
OP
Guest
Guest
Guest
Offline
Keep us posted. I was just about to start a post for all of us to find you one. They do come up, mostly in the northwest. If your buddy can't come through, I'm sure we'll be able to find you one sooner or later.
We look out for each other 'round these here parts. :wink: (no pun inteneded)
We look out for each other 'round these here parts. :wink: (no pun inteneded)
ShawnC_at_Moss
Jedi Hopeful
Offline
Thanks. I saw that one a while ago on eBay for $800 or something. Too steep for me. If it comes together that's great but it doesn't stop me from driving it on a regular basis.
OP
Guest
Guest
Guest
Offline
I agree, $800 is too much. Then again, I once sold some NOS Datsun Z door panels for $3K and thought that was too much too.
PM Billm, IIRC, he just got an "extra" 5 speed.
PM Billm, IIRC, he just got an "extra" 5 speed.
OP
Guest
Guest
Guest
Offline
Shawn, PM sent.
Gundy
Luke Skywalker
Offline
LOL...my Sprite with a sc/cr box and warmed motor with
lightened components wouldn't make it up my driveway without smoking the clutch with a 3.5. Then there is the loss of acceleration. I couldn't live with a 3.7.
You guys are lucky to be able to run that rear gear.
How does the 1st gear ratio of a stock ribcase compare to a Datsun?
lightened components wouldn't make it up my driveway without smoking the clutch with a 3.5. Then there is the loss of acceleration. I couldn't live with a 3.7.
You guys are lucky to be able to run that rear gear.
How does the 1st gear ratio of a stock ribcase compare to a Datsun?
Trevor Jessie
Yoda
Offline
Datsun 1st and 2nd is lower than the standard ribcase.
Third is about the same and 4th is 1:1 in both boxes (as you'd expect)
Third is about the same and 4th is 1:1 in both boxes (as you'd expect)
OP
Guest
Guest
Guest
Offline
Gundy said:
Perhaps the lightened componants and warming were part of the "problem". Hotter cam means less low end torque. Less reciprocating mass weight requires more torque from the motor to pull off.
Sounds like you had to spin it up to equal the misssing inertia and torque present before.
That's just a WAG though.
ShawnC_at_Moss
Jedi Hopeful
Offline
So we finally got our cost on the item and they are pricey. We are listing for $599.95. We have ordered 3 and it will be a "few weeks" before they arrive.
We are starting our Buy More, Save More sale on Feb. 20 so they would qualify for a 12% discount right off the bat.
They are under #15, part number 265-265, here https://www.mossmotors.com/Shop/ViewProducts.aspx?PlateIndexID=29295
We are starting our Buy More, Save More sale on Feb. 20 so they would qualify for a 12% discount right off the bat.
They are under #15, part number 265-265, here https://www.mossmotors.com/Shop/ViewProducts.aspx?PlateIndexID=29295
SilentUnicorn
Yoda
Offline
How about those thrust washers? Kinda would be nice to have those when ordering the gear set. Are you aware of another source for those?
Mark
Mark
ShawnC_at_Moss
Jedi Hopeful
Offline
That we don't have a line on those. When mine was rebuilt we reused the old one. I know that isn't a good answer but it is what we did and luckily it was within spec.