New MINI Fan Gear
We have detected you're not on the correct site for the car you have selected! Click the green button below to go to the correct site.
Select your car: 
BMW Mini Cooper
Select
   Forum Width:     Forum Type: 

 Posted: May 22, 2020 04:00AM
Total posts: 4081
Last post: Aug 2, 2020
Member since:Oct 8, 2011
Cars in Garage: 0
Photos: 0
WorkBench Posts: 0
US
I just dropped by a Spitfire forum and looked under intakes. They are talking about how hard finding a twin
HS 4 intake for a 1500 is. For years I kept a 1500 Midget and a earlier Sprite to move away from rubber bumpers.
I made several attemps to buy one and even paid shipping on one I never received. Due to space I gave both
the Sprite side curtian and the Midget away. Steve (CTR)

 Posted: May 21, 2020 10:09AM
Total posts: 8290
Last post: Aug 1, 2020
Member since:Feb 7, 2006
Cars in Garage: 0
Photos: 0
WorkBench Posts: 0
All the US market 1500 Spitfire's I have seen came with a 1.5" Stromberg pos carb from 75 on and they used it so they could pass emissions on MG's and Triumph's.
The UK market afaik stuck with the twin HS2's on the 1500 Spitfire and HS4's on the 1800 MGB's.

If in doubt, flat out. Colin Mc Rae MBE 1968-2007.

Give a car more power and it goes faster on the straights,
make a car lighter and it's faster everywhere. Colin Chapman.

 Posted: May 21, 2020 08:10AM
Total posts: 4081
Last post: Aug 2, 2020
Member since:Oct 8, 2011
Cars in Garage: 0
Photos: 0
WorkBench Posts: 0
US
Am I confused or did the 1400 Spitfire come with twin HS4s in some markets? Steve (CTR)

 Posted: May 13, 2020 03:07AM
Total posts: 10033
Last post: Aug 1, 2020
Member since:Mar 24, 1999
Cars in Garage: 0
Photos: 0
WorkBench Posts: 0
GB
Have a look at the needles for an MG Midget - I think they ran HS2s rather than HS4s but would be a good start.

We've got number 5 needles in the HS4s on Tigger, but he's a bit non-standard.  Again, a good starting point.

Failing that, have a look in Vizards Bible for recommended start needles.

 Posted: May 12, 2020 12:51PM
Total posts: 2021
Last post: May 12, 2020
Member since:Mar 8, 2002
Cars in Garage: 0
Photos: 1
WorkBench Posts: 1
GR
Quote:
Originally Posted by Craig
Hey Dee. I think I use to have Cooper #5 needles in my set up before I went to the dark side of twin cams. The engine was a 1275 of unknown origin, but the head was a 12G940 with some porting done by a previous owner in NZ from what I could figure out. It ran fine, but I could have leaned it out a bit during tuning.
thanks buddy appreciate it!!  

 Posted: May 12, 2020 11:27AM
Total posts: 1023
Last post: Aug 2, 2020
Member since:Feb 25, 1999
Cars in Garage: 0
Photos: 0
WorkBench Posts: 0
Hey Dee. I think I use to have Cooper #5 needles in my set up before I went to the dark side of twin cams. The engine was a 1275 of unknown origin, but the head was a 12G940 with some porting done by a previous owner in NZ from what I could figure out. It ran fine, but I could have leaned it out a bit during tuning.

'72 Morris Mini - 1310cc, K1100 head conversion

 

 

 

 Posted: May 12, 2020 09:14AM
Total posts: 2021
Last post: May 12, 2020
Member since:Mar 8, 2002
Cars in Garage: 0
Photos: 1
WorkBench Posts: 1
GR
thanks for your input guys just looking getting this Mini MOTed and out of the shop. Owner is a mess to deal with.. 

 Posted: May 12, 2020 03:44AM
Total posts: 1692
Last post: Aug 3, 2020
Member since:Oct 18, 2011
Cars in Garage: 0
Photos: 0
WorkBench Posts: 0
I found very little value in "recommended" needles... they're a reasonable starting point.  A few hours on the dyno was well worth it... After 50 years its difficult to imagine a "standard" engine...

There's no reason HS4s won't work well with an "ordinary" S engine..  

You'll be amazed at the difference between an OK "generic" setup and that which a knowledgeable person can achieve...

Cheers, Ian

 Posted: May 12, 2020 12:23AM
Total posts: 390
Last post: Jul 14, 2020
Member since:Nov 12, 2008
Cars in Garage: 0
Photos: 0
WorkBench Posts: 0
M for 1.25 twins , cp4 for 1.5 twins 

 Posted: May 12, 2020 12:07AM
Total posts: 390
Last post: Jul 14, 2020
Member since:Nov 12, 2008
Cars in Garage: 0
Photos: 0
WorkBench Posts: 0
M needles standard Cooper s 

 Posted: May 11, 2020 04:03PM
Total posts: 4081
Last post: Aug 2, 2020
Member since:Oct 8, 2011
Cars in Garage: 0
Photos: 0
WorkBench Posts: 0
US
Try AAA if a cam, good compression and header. Steve (CTR)

 Posted: May 11, 2020 03:57PM
Total posts: 865
Last post: Aug 1, 2020
Member since:Jul 24, 2014
Cars in Garage: 0
Photos: 0
WorkBench Posts: 0
I don’t know if you can lean them out enough, but for $70 new $60 used you could buy a single HS4 manifold from our host and sure of a good tune in the end.

 Posted: May 11, 2020 10:43AM
Total posts: 2021
Last post: May 12, 2020
Member since:Mar 8, 2002
Cars in Garage: 0
Photos: 1
WorkBench Posts: 1
GR
Hey guys anyone running twin HS4s on a standard not hot cam'ed 1275? What needles you went for? I know its too much of a set up already but trying to get a customers Mini back on the road that came to me from another shop. Car had modified needles and jets running way too rich. 

thanks in advance