Recent posts

#1

Maintenance and Modifications / Re: Jet height HIF 44

Last post by 94touring - May 23, 2024, 07:52:19 PM

There's no point looking at the plugs, you have a wideband. I need rough throttle positions and the numbers to give advice.  If you're full throttle and 16:1, you'll melt pistons eventually.  Take it out in 3rd gear on a long straight road and at full throttle starting around 2k rpms, run it up to whatever your redline is and see how lean it is.  Myself personally I let off the throttle tuning once I hit 14s at full throttle.  Drive back to the shop and adjust/file needles, make jet changes, or redo fuel cells on the cars with programmable fuel injection.

#2

Maintenance and Modifications / Re: Jet height HIF 44

Last post by bikewiz - May 23, 2024, 07:31:31 PM

When you say accelerating, approximately how much throttle?  Is it hesitating at 16+ when you're at 70mph+?  Or is it a momentary lean spike?

So I drove it after work with some secondary roads and highway.
If you you just pin it in 4th at 70 it spikes lean and stumbles, I'm just not sure you would actually drive the car like that. If you accelerate "normal" to pass it leans to 16 or so but doesn't feel like it has a flat spot. It probably could be a little richer on the top to help that a little.
Most everywhere else it drives pretty good. I didn't have time to do a plug chop during the highway run to get a look at the plugs.
I have another BDL I could mod to see if I can get it better and save this modded BDL as a reference.

#3

Parts for sale/wanted / Re: MKI front license plate wa...

Last post by Whee - May 23, 2024, 11:42:57 AM

That looks really good.

#4

Maintenance and Modifications / Re: Jet height HIF 44

Last post by 94touring - May 23, 2024, 11:27:53 AM

When you say accelerating, approximately how much throttle?  Is it hesitating at 16+ when you're at 70mph+?  Or is it a momentary lean spike?

#5

Maintenance and Modifications / Re: Jet height HIF 44

Last post by bikewiz - May 23, 2024, 04:56:56 AM

What are the wide open throttle numbers?

I'll check as I drive it more.
I kind of wish I had mounted the gauge on the dash up higher in front of me so I don't need to look down when driving.

#6

Maintenance and Modifications / Re: Jet height HIF 44

Last post by 94touring - May 22, 2024, 09:03:51 PM

What are the wide open throttle numbers?

#7

Maintenance and Modifications / Re: Jet height HIF 44

Last post by bikewiz - May 22, 2024, 07:59:01 PM

So here are my numbers after modifying a BDL needle with 1000 grit paper and metal polish in the my lathe.

Idle @ 1000 rpms 10 degrees advance 13.3 - 14.2 pretty steady idle now.
2000-3500 accelerating 14.1 - 15.2
Steady state 50 mph/3000 rpm 14.4 - 15.2
Steady state 70 mph/4000 rpm 15.5 - 15.8
Accelerating on the highway from 70 mph leans it out to 16+

Other notables LZX 2085 damper with 20/50 oil (this was recommended by AC Dodd), MED stub stack w/ITG MED foam filter, BP6ES plugs

I started with the jet height at .075 but have since brought it up but I didn't remove the vacuum chamber to remeasure it.

#8

Fuel Injection / Re: MINI DIY Supercharged w/Ho...

Last post by Shrimps - May 22, 2024, 04:02:12 PM

Just read through this (old) thread and figured I'll add this YouTube comment I saw April 2020 about the Sniper system.

I don't know the person with the MG nor anything about his setup, but wondered what he used for intake.  I assumed Weber but there are likely more options for longitudinally mounted engine in MG's.  Thought it was interesting none the less.

#9

Parts for sale/wanted / Pickup Truck tailgate

Last post by drmini - May 22, 2024, 01:30:34 PM

I have a brand new fiberglass tailgate for a Mini pickup. Never been installed, absolutely perfect. Why deal with rust? $150 plus shipping.

#10

The Lounge / Re: F1 - 2024

Last post by MiniDave - May 22, 2024, 07:34:52 AM

Monaco this weekend - should be an interesting race - whoever gets pole is usually good to go to the end, but there can always be surprises. Good opportunity for one of the Ferrari or big Mac boys to steal a race win.

All the internet rumor sites have Bottas going home to Williams next season, if he does where does that leave Mercedes and their wonderkinder Antonelli?

And who will want to race for Alpine next season? They really should just sell the team to Andretti and be done with it.....then they can go back to focusing their efforts on the motor power unit.