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45DHLA on 1098
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Author:  drmini in aust [ Sun Oct 10, 2004 8:08 am ]
Post subject:  45DHLA on 1098
Well, we flicked the HS2 SU and got Chong's 45 Dellorto working on his 1098 yesterday.
Carb had a few problems- someone had assembled the `choke' (fuel enrichment device) backwards, it also had 140 main jets and 200 air jets in. Had no chance of running except on full choke. :?
Chokes in this 45 carb are 34mm, maybe a little big for a pretty stocko 1098, but it runs OK now with 155 main jets and 170 air correctors.
Now, he just needs a Pulsar dizzy, and a cam, and head work, and..., and... :P

<edit> but it sounds sweet and has a new `bling' Ramflow filter too. 8)
Author:  dewey [ Sun Oct 10, 2004 5:23 pm ]
Post subject: 
Sounds cool.

I wouldn't mind trying one of these Dellorto carbies... what do they normal cost and are they hard to come by?

dewey
Author:  drmini in aust [ Sun Oct 10, 2004 7:24 pm ]
Post subject: 
Going S/H price for a 40DHLA Dellorto is probably $100 or so, for the carb only.
Many were used on Alfas in the 70s & 80s. Weber 40DCOEs were common too.

45s are a bit scarcer and probably dearer. But a 40 is plenty for a 1098.

To fit to a Mini, you can bank on spending at least another $100 on the carb (a repair kit, 2 new emulsion tubes & change main & air corrector jets).
A Redline 3005 manifold (new) is around $160. Mine cost $100 S/H. 8)
Author:  minimarc [ Sun Oct 10, 2004 8:26 pm ]
Post subject: 
doc you dont have a 40 dhla lying around do you or know someone around who does i am after one to put on the 1100 any condition
Author:  drmini in aust [ Sun Oct 10, 2004 8:34 pm ]
Post subject: 
Just sold my last spare one, sorry!
Try one off the Alfa wreckers.. eg Manning Motors in Sydney. Must be one or 2 places up there.. :wink:
Author:  minimarc [ Sun Oct 10, 2004 9:08 pm ]
Post subject: 
prob is that most seem to the be twin dhla40s on the alfas
Author:  miniVan [ Sun Oct 10, 2004 9:11 pm ]
Post subject: 
i have 2 dhla 45s that i got off a twin setup for a mkII escort

what size jets do you recommend?

i currently have a 1 1/4" su that i want to ditch

is it worth changing if there nothing wrong with my currnt carby?
Author:  drmini in aust [ Sun Oct 10, 2004 9:44 pm ]
Post subject: 
miniVan wrote:
i have 2 dhla 45s that i got off a twin setup for a mkII escort

what size jets do you recommend?

i currently have a 1 1/4" su that i want to ditch

is it worth changing if there nothing wrong with my currnt carby?

What size motor?
On my modded 1310S with a 45DHLA I now run 36mm chokes, 7772.6 emulsion tubes, 40 pump jets, 50 idle jets, 160 main jets and 185 air correctors.
When I got it, it had 34 chokes, 145 mains, 180 air correctors, the rest as above. But it goes harder now!

On a 998 or 1098 with a 45DHLA, I would use 33 or 34mm chokes for the street-
Chong's stock 1098 is running 155 mains and 170 air correctors. It has 34mm chokes, 7772.5 emulsion tubes, 40 pump jets and 55 idle jets.
That will get a 998/1098 going, anyhow.. :wink:

,edit> note that 7772.5 emulsion tubes are NLA. Nearest available now is a 7772.6.
40DHLAs off Alfas have either 32 or 33mm chokes in, good size for a 1098.
A 34 is the biggest recommended to run in a 40 carb.

These carbs are easier to tune than picking SU needles, IMO.. 8)

<EDIT> Personally, I would NOT fit these carbs to a stock 998/1098 motor unless you intend to modify it further. And you WILL use more fuel.. :lol:
Author:  Lillee [ Sun Oct 10, 2004 10:50 pm ]
Post subject: 
Sorry for late reply.

YES!!! it is bloody worth it! esp if you can find one for the price I got mine for! Gee she breaths so much better, much more willing to rev, more power to pull away and the sound! It's wicked! :twisted:

In general she drives SO much better in traffic. More power to play with to get out of tigh situations. I can now actually drive up hill on 4th effortlessly! The dellorto has transformed my car completely! I have to learn to drive her all over again! :oops: I am now seriously thinking i need to upgrade my brakes sometime soon :( :wink:

All in all it was blardy worth every cent! Doc, your a powerhouse of knowledge and knowhow!! Champion!!! :D

Now all i need is a new cam, head work, dissy......... :lol: But seriously... I really need a tacho :shock: :( can't hear the engine's revs over the whhharrrp sound :wink:

PS. Pics tommorrow!
Author:  Mini Mad [ Mon Oct 11, 2004 12:40 am ]
Post subject: 
Hey Chong, told you i'd make a post just for you 8)

Your car is a beaut mate, just get those brakes sorted ;) and a bit more work to the engine and you'll be set :) and of course more 'bling' :P

Josh
Author:  J_A_M [ Mon Oct 11, 2004 9:15 am ]
Post subject: 
:shock: OMG....Josh posted!!

Hey Chong, nice ride mate. You must get lots of looks and comments on the road?!?! You should be proud!

Anton.
Author:  Lillee [ Mon Oct 11, 2004 12:00 pm ]
Post subject: 
Hey boys!!!

Josh! you're a man of your word! Hope things work out for your engine and sorry I had to run! I made it just in time back to strathfield :oops: I would have liked to stay to help out and learn what the problem was... what is the problem?

Anton: mate I feel really bad not chatting to you properly on Sat. You sound like a bloke that really knows his stuff about minis and I would have liked to sit you down and learn all that you have to say. I felt Saturday was a rush for me :( Anyway next time for sure I will come around and see JAM. I wanted to know... you said you got the chrome window suround thingies by the meter, where and how much did you say again??

Anyway for sure I will come to the next MMC meeting if you are going to be there.

Here are the pics!

Before: HS2 SU, 1 1/4 inch
Image

Doc's bling bling stub stacks! 8)
Image

After: Dellorto DHLA 45 beast :twisted:
Image

Oh by the way it is the dissy that was making it miss. I rechecked the contact points gap and filed away some of the gunk and it's going great now! permament fix will have to be a pulsar dissy...

Anyone got a Tacho they don't want? :lol:
Author:  minimarc [ Mon Oct 11, 2004 12:22 pm ]
Post subject: 
looks the goods mate 8) 8) 1100 is it
Author:  Lillee [ Mon Oct 11, 2004 1:22 pm ]
Post subject: 
Thanks mate, Yeah 1098 clubman engine. Pretty much stocko with 3into1 perry extractors and 1 3/4inch (I think) zorst
Author:  drmini in aust [ Mon Oct 11, 2004 1:40 pm ]
Post subject: 
68Delux wrote:
Hey boys!!!

Josh! you're a man of your word! Hope things work out for your engine and sorry I had to run! I made it just in time back to strathfield :oops: I would have liked to stay to help out and learn what the problem was... what is the problem?



I pulled the motor off it this morning..
Diff pinion (3.44:1) has a toothache- coupla teeth missing. :cry:
Rest of box looks OK, but it's not apart yet. I'll pull it right down.
The motor (1152cc) is fine- and it has a 12G295 head on it, with 1275 inlet valves, and a duplex cam chain & sprockets too.
Cam is down at Russell Eng's now, getting reground.... I'll tickle the head next weekend..:P
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