How to Install a Pressure Regulator on a Classic Mini - Why You Need One

[@thebluep0tat0]

Just for reference...at 5:00 , Cole is still speaking (and referencing his setup) to a high-pressure fuel pump vs a low pressure or standard OE mechanical pump. That glass filter/regulator will not damage anything on a stock car with standard engine, or higher compression engine with a fuel pump below 10psi (I dont have my glass filter/reg manual in front of me). Mines been running at 3psi now for over 2 years and really solid piece of kit.

[@classicminidiy]

Thanks for adding this its a great point. Listening back I wasnt super clear about that. The reason that regulator does not work for my setup is solely due to my high pressure pump in the SPI tank.

[@TheRyadrian]

Oh phew thanks for this comment mate! Because ive already set mine up like that. Corolla with 6psi oe going down to 3psi :D

[@TornadoCAN99]

In carb setups, fuel does not get into engine via pressure coming from any pump. It is drawn into the carb throat only by the vacuum produced at air is sucked into engine by the pistons on intake stroke. Fuel pump pressure is used only to deliver fuel to the carb's float bowl, and is only needed where the tank's fuel pick point sits below the carb float bowl height, since gravity alone cannot get fuel to the bowl. Assuming the float bowl 's fuel level shut off valve is in good condition and is able to prevent bowl from over filling, then pressure on the pump side of the fuel supply is not going to reach the carb jet system. if it did, the engine would quickly flood with fuel. The only benefit I can see for having a pressure regulator to to better control a poorly operating pump from putting excess pressure to the bowl.

[@martinfidel7086]

except in the turbo Mini ....

[@DannyTipple]

Id recommend replacing those jubilee clips with proper fuel hose clips (like the one thats currently on the tank side of the feed).

[@zx3]

Hi, why not run the FPR after the carb's fuel inlet? And use the return line to return excessed fuel? This can also benefited by taking extra heat out of engine

[@FirstLast-ox5ls]

What another alternative for the Liquid Filled Fuel Pressure Gauge, 0-15Psi, I’ll be getting mine by the end of June, and this kit you put together is exactly what my mini needed now in the shop thanks again buddy your a lifesaver

[@thedobermangang3503]

i got 1990 k5 blazer 5.7 had it rebuild with a few up grades everything is pretty mush stock i up graded the cam to a howard cam rattler lift 225/230 duration 0.50/227/235 centerline 03 i still have the factory swirl port heads i got headers 3' pipes all the way back i up graded my torque converter to 2000 to 2400 stall and 4:10 gears i just put my engine in about a week ago it was a tbi so i converted it to carb...im having problem trying to get it to run right i put a brandnew edelbrock carb 1406 on it..i got 12-887 holley regulator set it to 6 psi i got it to run starts up good but its backfiring and popping out my exhaust ..i have a vacuum port on my regulator but did not hook it up dont no if thats the problem or not..or is the carb to small for my set up...you can smell the burning and the raw gas in park when u accelerate and give it more gas it sound good but at idling its popping and backfiring like someome popping fire crackers..tell me what you think

[@deangaryjames]

Enjoyable video, thank you

[@classicminidiy]

Glad you enjoyed it

[@FedeBo91]

Malpassi filter ❤️

[@thedobermangang3503]

great video my brother

[@classicminidiy]

Much appreciated

[@ramon1275]

The last regulator you showed (red) cab be fitting on a large SU without return to tank?

[@ah1472-u5h]

Thanks for this. Around the 5 minute mark you warn against simply putting a deadhead type regulator between the pump and carb, suggesting that it would likely burn out your pump. Did you mean that for any pump type or just the higher volume ones meant for bypass systems? I have an 850 Mini with the original HS2 carb. My pump puts out 4.5 psi and I have been having trouble for years keeping my float chamber valves from leaking. I was thinking of adding a Filter King like yours just after my existing pump, after hearing your caution, I am not so sure. Please advise! (Nevermind - I just saw the comment from theblue0at0 and your reply which addresses my confusion!)

[@thedjse]

Really enjoyed that. Great explanation cole... Btw what make fuel pump are you running in the tank bud?

[@classicminidiy]

Thanks Alex! The pump is the standard MPI pump from Minispares. FULL ASSEMBLY: minispares.com/product/Classic/Fuel/Pumps/WFX100810.aspx PUMP ONLY: minispares.com/product/Classic/Fuel/Pumps/WFX100812.aspx

[@thedjse]

@@classicminidiy so did you have to replace the full assembly due to it being an spi tank or could you just change the pump

[@classicminidiy]

@@thedjse Since I bought the tank brand new I had to buy the whole assembly and Fuel sender as well.

[@thedjse]

@@classicminidiy ahhhhh fair enough... Sorry for the all the questions as I have an spi tank and need to upgrade the pump

[@martinfidel7086]

@@thedjse the SPi and MPi pumps are no different in their characteristics.

[@EskrimaDeCampoJDCIO]

Curious if by having the regulator close to the fuel tank and only running a feed line to the carb, you essentially are running a dead head system. Yes the pump doesn’t have to work as hard but what about the fuel sitting in the engine bay for extended amounts of time. From my limited understanding, there’s a risk of the fuel boiling and causing vapor lock. I call on you experts to clarify.

[@MATIFUSKA]

Hi , great video, thanks !! question, can i go from 60 psi to 3 psi with this aeromotive pressure regulator ?

[@classicminidiy]

Hey thanks! So technically you could but by doing that you are putting a ton of strain on the high pressure pump even if it has a return. It would be better to buy a low pressure fuel pump if you only need 3psi.

[@Sirius-B]

Nice vid man! What kind of tape are you using between the parts?

[@classicminidiy]

It’s just a simple fuel safe PTFE tape. Like plumbers tape. If you get some just make sure it’s fuel safe.

[@MrWojg]

Cole, where can we get that sweet Travel shirt? I have a red mini just like that.

[@weirgregory]

The t-shirt was previously sold by www.bigblue.co.za in South Africa. They do not have stock at present. I came across a similar design at vents-brull.myshopify.com/collections/unisex-t-shirts/products/mini

[@classicminidiy]

I actually got it as a gift on Reddit Gifts one year but I believe they are sold in South Africa. Cause the plate says travel ZA(South Africa)

[@MrWojg]

Thanks! They are not a bad price either. Now to see if shipping kills it.

[@BryanSpear]

What if I have a return less fuel system?

[@chitphoncha]

r56 can install ?

[@Incriveles]

Friend of mine is about to set an Weber on his MK1 mini (which I found pointless) here in Japan is quite popular to fitting webers in minis , but is it alright for an so small capacity 848cc!???

[@classicminidiy]

Hey Diego! Weber's can be awesome upgrades for the larger displacement A-Series engines when done properly, however a Weber (assuming DCOE40 or 45) on an 850 will never run correctly. It's way way too much carb for the small engine and it will likely be underivable. It's a much better idea to focus on getting a larger engine or tuning the single HS2 dialed in perfectly.

[@Incriveles]

@@classicminidiy duuude… look check out this…I can’t understand why Japanese ppl are soooo crazy about Weber… kzbin.info/www/bejne/qZmnY4R9jLWisKM

[@asepkusnandar5110]

emision control plis

[@littlemini3171]

Hi

[@classicminidiy]

little mini hello!

[@RobinTheMini]

I'm sorry to say here that there is absolutely no need of any pressure regulator on Minis with SU type carbs, as the bowl of the carb itself it there to do the job.

[@classicminidiy]

I disagree. As people replace their mechanical or electric pumps with units pumper greater than 3psi if you don’t regulate the fuel prior to it arriving at the bowl it’s going to blow out the float bowl seals or you’re going to have flooding problems. Every mini with an SU carb can benefit from a properly regulated pump like the simple filter king style pump. I agree not everyone needs a bypass style pump though. In the majority of applications that’s going to be overkill.

[@martinfidel7086]

so a turbo mini doesn't need a regulator ?

[@RobinTheMini]

@@classicminidiy that's precisely what you shouldn't do, fit any electrical pump higher than 3psi in a Mini...

[@RobinTheMini]

@@martinfidel7086 the only turbo Mini was the ERA and did not have regulator.

[@martinfidel7086]

@@RobinTheMini yes it did, I have several of them if you want to see them ? it was a pressure adjustable regulator to cope with the varying boost pressure requirement for higher fuel pressure, ie as the boost pressure increased so did the fuel pressure

[@carlcarguy3026]

my mino want to kill me