9 replies to this topic

[Dunk]

engine spec at mo is.
1098 road rally cam, lightened crank, polished and ported head. at the mo i currnetly have a completly C**p carb of a 998, unsure of what size and needle. rather than mucking about i just want to know what the best carb is for my engine from these
http://www.minisport...s-products.html

cheers

dunk

[MRclubman1100cc]

with thoes mods go for a weber 40DCOE

[fikus01]

NOOOOOOOOO not the 40 webber!! its far too big!! its the same as fitting twin 1 1/2" su's and they are just too big!! with the stuff you've done you wont be exceding the capabilities of the 998 carb!! they even fitted them to 1275's, they are good upto about 90 crank bhp and give much better throttle response than a bigger carb.

if you want to fit anything fit a metro 998 carb, its called an HIF 38 it has the float bowl under the carb rather than on the side like the mini. its the same size as the mini one tho.

only other thing i can recomend is a ram pipe and a good air filter!! as for needles its a hard choice!! AAA will be too lean but shud get you running to the rolling road!

you'll need sum1 with WINsu to give you a better idea of needle choice!

if its anyting like my 1100 you'll b loking at about 54bhp@wheels and better performance than a std 1275! plus loads of midrange grunt!

[Dunk]

NOOOOOOOOO not the 40 webber!! its far too big!! its the same as fitting twin 1 1/2" su's and they are just too big!! with the stuff you've done you wont be exceding the capabilities of the 998 carb!! they even fitted them to 1275's, they are good upto about 90 crank bhp and give much better throttle response than a bigger carb.

if you want to fit anything fit a metro 998 carb, its called an HIF 38 it has the float bowl under the carb rather than on the side like the mini. its the same size as the mini one tho.

only other thing i can recomend is a ram pipe and a good air filter!! as for needles its a hard choice!! AAA will be too lean but shud get you running to the rolling road!

you'll need sum1 with WINsu to give you a better idea of needle choice!

if its anyting like my 1100 you'll b loking at about 54bhp@wheels and better performance than a std 1275! plus loads of midrange grunt!

ok mate, so you would go for the hif38 for sure on my engine? ive spent all today playing and trying to get in run good to no avail timing is spot on but the carb is just letting the engine down. do you know if these carbs from minisport are brand new, or just refurbs? really want to put a new one. am a little worried about the jets though, who on here could recommend the correct one for the engine spec?
cheers
duncan

[Retro_10s]

They're brand new, the only way to get it running properly is a Rolling Road. Do it.

[minislapper]

Dunk.....you have a PM.

[Sammy D]

Don't know if it helps, but I'm using an AAU needle in an HS4 on my 1100. Seems perfect, she goes like a rocket.

[fikus01]

i promise you the hif 38 is more than adequate, and please please get it setup on the rollers. only time i had trouble setting up my car is when i had a cooper head and the chanbers were too big, lowering my compression significantly, i was running 25 degrees advance at tickover (normal shud be about 10) if this is the case with urs then maybe the hed could do with a skim!

[Big_Adam]

If you want more flow from the carb then you can send it my way and I'll half the spindle for you. Hell I'll rebuild it if you send a rebuild kit.

[blacktulip]

HIF38 for sure