How to setup and tune a 4150 e85 carburetor. Learn the basics / 101 training video.
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- Опубліковано 12 вер 2024
- In this video I cover what I have learned about setting up and E85 carburetor on an Gen1 SBC. It is important to note not every combination may want the same fueling and idle setup / timing and so on as my 400 SBC. Just take what I share to the memory banks to help facilitate your own project.
• Brawler Carburetor reb... 950 Brawler rebuild / assembly .
• Holley 4150 carburetor... Holley adjustable linkage video.
• Setting up a rebuilt c... Setup carb after rebuild.
• Holley 4150 Carburetor... Holley 4150 tuning secrets.
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#Gen2LT1 #sbc #E85
More carb tuning videos 👇👇
ua-cam.com/video/RFJPhaFqAA8/v-deo.html 950 Brawler rebuild / assembly .
ua-cam.com/video/wWCpGON4Zis/v-deo.html Holley adjustable linkage video.
ua-cam.com/video/A6RH8N2PSPA/v-deo.html Setup carb after rebuild.
www.youtube.com/watch?v=YLPN9... Holley 4150 tuning secrets.
All I can say is I have been following your channel for around a year now and I have learned a lot. In my eyes you are a master carburetor tuner. Keep up the great work 👍 👍
I'm not master just trying to share. 👍
@@TPVPRO most people don't know much about carburetors. I do my own tuning as well. I'm still on the rich side cruising though.
@@musclebone7875 Good AFR WOT and cruise is the tricky part.
@@TPVPRO I agree.
Been building my own e85 carbs for a few years now. I've always have had a fat off idle, low speed cruise situation. What kind of idle feed, and idle air bleed packages have you been using? I've been having a real hard time nailing down that area.
Excellent video Tyler. I'm switching to this exact carb for my new build. Thanks for making the setup and swap much easier. Saved to my favorites. Cheers 🍻
Good info. We just converted our 468 Big Block and it absolutely loved the E85. We are going to install the Air-Fuel Gauge so we can fine tune it. But so far very happy with this change. Especially since the engine is running 12.5:1 compression with a .700 lift solid roller.
Awsome video thanks
I waiting on my carb from atm right now
Been looking at those e85 ATM carbs. Have a quick fuel gas 750 right now tho.
Man your giving it to them straight. #CarbGang
Your channel and truck helped my 400 S10 build last spring, its a tad less radical than yours in this first year.
the nos line on the fire wall might be a fire risk if the old converter gives up. bad ass car and great video man!
Nice work!
Awesome brother thank you!
No problem
What’s up Tyler l. Love the content. Quick question. What kind of jetting did the atm carb on this video ?. We basically have the same engine setup. Trying to get mine dialed in. Thanks in advance!
My annual bossters are big that might help also with flow
Great video I never did see this one until tonight. Thanks.rick 427
Where did you get that ajustable linkage for your throttle to your secondary and do you have a part number? Thanks alot for your videos
Great video !
Awesome dude
Can you still run regular gas through it ?
You have to change the carb internals back to run gasoline. E85 takes much more fuel than gasoline so the internals need to be changed out.
Did you make any changes to your wideband when switching from gas for it to read correctly for e85?
Awesome
Good information bro. I have a question my e85 406 runs 6.70-80s one thing I've chased is the return to idle is terrible. After a rolling burnout it stays up in rpm around 3-3500rpm for a abnormal long time until I wack the throttle a few times. Also does same thing free reving. Mine setup is a homemade "rob mix" metering block on a 950hp center section 30cc pumps 40 squirter's 92 jets with 4.5pv front and rear believe it has 28-45-45-28 bleeds
Do you have a timing curve in it? Sometimes if the weights sling open it will advance doing just that. I lock my timing out to prevent that.
Yes I do truck is 12.8-1 compression and the damn thing has always been hard to start locked so I tossed some silver springs in and unlocked it.. learned something new today didn't even think about timing curve
@@bevinsracing It may be that mine is 11.5 and I really need a Programable 7 myself.
@@bevinsracing Did you end up checking if your weights were sticking outwards, making the idle hang high?
When you went to start it with locked timing, did you hold the throttle open about halfway or more? For higher compression rigs with locked timing, I pump the gas more than usual (almost flooding it), then hold the throttle almost completely open while cranking. This reduces load on the starter and it cranks easier. Also lights up violently ;)
🥝✔️ B & R Racing brought me here
Which carb u have? I got tha XRC-950E85 pump nozzle 42 high speed bleeds 28 idle air bleeds 64 main jets 99A .118 no power valve idle feed restriction 46 and needle and seat 130 that’s front and back my motor is 401 sbc .700 lift cam 13.5 compression 4500 stall 4.10 gear in 84 gmc/s10 blazer! I’m n Colorado u think I’ll be ok with out tha power jets it will see tha streets time to time like to kno what u think!
Prostreetjimmy
Hey what kind of cooling fans are you running???
Hey Tyler, could you elaborate more on why you prefer to pull more idle air speed through the secondary vs the primary?.. I would think it would be the same either way ? More idle air speed = more idle air speed .. correct.? Regardless of whether it's through the primary or secondary side. Thanks for any info.
E85 is heavier and since you need %30 more it takes more air-speed to atomize. If you pull from the boosters too soon the fuel comes out in droplets vs a mist.
@@TPVPRO ok.. so, setting up the idle circuit in this fashion prevents pulling on the boosters too soon.. i.e. at idle ? Or light cruise ? In your experience.
For somebody who doesn't know does a truck built like this with a 400 sbc feel fast. If I was to drive it and never drove a fast car before would it scare me
What do you have set up to tell how lean or rich you are?
A wideband O2 sensor.
Hi Tyler....Can you fit the LSU 4.9 to your 4370 Gauge ? cheers Brett
I have the older unit it only works with a 4.2
So isn’t that lean for E85? I thought stoichiometric for ethanol was like 9.975:1?
No because gas gauges are not calibrated for E. But it will take way more fuel to hit a 12.0-12.5 AFR than gas.
What afr is the engine at cold start?
My truck will not run cold if I set hot idle afr to 14:
After cooling down and cold restart its over 16:1 and dies
Can you do a video of cold through warm afr change?
On mine the AFR changes very little cold vs hot with E85 at idle. Gas it will be very lean when cold but you only adjust it hot because it's only cold for a short time during warm up .
Steve, do you have a cold blooded race style carb with no choke? If so that's completely normal. Sit there with your foot on the gas until it warms up enough to stay running... that's what we all do. Then when it's fully warm, set your AFR's to whatever you want. Ignore cold AFR.
Yes and it got so cold a few weeks ago it wouldn’t start without a shot of starting fluid. I plan to keep a dish soap bottle of race gas primer for cool weather starts thanks guys!
What size cam are you running and compression thank you
11.5 compression I can't remember the exact #s off the top of my head but it's about 630 lift 260 270 dur @ 50 on a 110 lsa.
Jet extensions
Drill small holes on front flaps will give better take off
Do you do this same process with gas?
I use more idle speed on the front for gas just have to try and see what yields the best results for your motor.