Can 948 SU carb fit into 1098? 948 diff with 1098 engine?

Post by **h20_mako** » Fri Nov 27, 2009 11:39 am

Can a 948 carb be fitted on a 1098? Will there be any issues? Originally is both the 948 and 1098 using the same carb?

If i were to fit a 1098 and ribbed gearbox, can the stock 948 diff still be used?

Cheers

Post by **PSL184** » Fri Nov 27, 2009 11:44 am

Can a 948 carb be fitted on a 1098? - Yes
Will there be any issues? - Can't think of any
Originally is both the 948 and 1098 using the same carb? - Both HS2 I think.
If i were to fit a 1098 and ribbed gearbox, can the stock 948 diff still be used? - Yes, although you may find it undergeared for motorways.

Post by **h20_mako** » Fri Nov 27, 2009 11:54 am

Thanks PSL you are saying undergeared would 50mph be considerably fine from your experience.

Post by **PSL184** » Fri Nov 27, 2009 12:12 pm

Yes 50mph would be OK but any faster you would find it gets very noisy

Your acceleration would improve though ;-)

Post by **mike.perry** » Fri Nov 27, 2009 3:32 pm

The only difference with the carb is the 948 uses an M needle and the 1098 uses an AN needle.
The 1098 van and pickup are fitted with 948 diffs so there is no problem, it just gives better acceleration and a bit higher revs at the top end. Still good for 75mph+. From my observations of Singapore (2 days) you would not be too bothered about high speed cruising on motorways.

Post by **andrew.searston** » Fri Nov 27, 2009 9:42 pm

sorry to steel your post
but would it be the same for a 948 engine and gearbox with a 1098 diff, would you have to change the speedo????

Post by **PSL184** » Fri Nov 27, 2009 10:51 pm

andrew.searston wrote: would you have to change the speedo????

Yes, the change of diff ratio will effect the speedo reading.

Post by **mike.perry** » Sat Nov 28, 2009 1:26 am

It is wise to check the speedo against a sat nav. you would be surprised how optimistic the standard speedo is, so by changing the diff you may find that your speedo is fairly close.
With a 3.9 diff and larger tyres my 1098 1408 speedo is spot on.

Post by **h20_mako** » Sat Nov 28, 2009 9:08 am

only the diff will affect my speedo reading right? changing to a 1098 and ribbed gearbox will not affect the readings i currently have which is 1504 with 4.55 diff.

No worries andrew all here to learn

Mike 75mph+ is scary lol... my dad keeps telling me not to drive that fast and its the same logic as tell my granddad to run as fast as usian bolt..lolx... Mike when were you here in Singapore for the F1 race?

Post by **mike.perry** » Sat Nov 28, 2009 10:45 am

I was in Singapore in March for a stopover for a couple of days on the way to Australia

Post by **h20_mako** » Sat Nov 28, 2009 4:18 pm

oh i see. let me know when you drop by next time

i can show you around

Post by **mike.perry** » Sat Nov 28, 2009 11:28 pm

Cheers, I will take you up on that when I visit my son in Australia next time.

Post by **h20_mako** » Tue Jun 29, 2010 12:57 pm

For just a 1098 engine swap into my 1957 948 Tourer. Can i use the 948 gearbox and diff?

What i still need to include to complete the swap is the 1098 clutch, 1098 flywheel and HS2 carburettor?

Please advice?

Post by **bmcecosse** » Tue Jun 29, 2010 5:15 pm

Just use ALL the 948 bits, including the backplate - on the 1098 block.

Morris Minor Owners Club

Can 948 SU carb fit into 1098? 948 diff with 1098 engine?

Can 948 SU carb fit into 1098? 948 diff with 1098 engine?

Re: Can 948 SU carb fit into 1098? 948 diff with 1098 engine?

Re: Can 948 SU carb fit into 1098? 948 diff with 1098 engine?