HOW and WHY to upgrade your FUEL PUMP and INJECTORS - THEORY + PRACTICE - Project Underdog #13

WHAT A VIDEO

Is there any link for the injectors. Oh, I'm working on a 7afe engine. Can I follow this project to improve performance? Thanks in advance

Great informative video as usual bruv.....

If i mount just a better fuel pump in aspirated stock car can i harm something ? I have a fuel pump from another car with a bigger engine . Tnx in advance .

that vintage high pressure fuel pump is funny looking

Removing an MR2 fuel tank, not exactly easy... eh?

May I know 60.9 x 10.5 my question is 10.5 is what ? im a bit confused

It’s worth mentioning that OEM injectors often have a spray pattern that has been designed with the intake port/valve in mind. Most aftermarket injectors have a generic spray pattern. This can result in more fuel being sprayed on the wall/valve and increased puddling. Usually it’s not a huge deal, but can cause some drivability issues.

I have always found it much easier to remove the oem pump, add a sump, and use an external inline pump. The only real downside is that they tend to be a little bit louder, but other than that, it makes literally every other part way easier to service. I know some people have had issues with reliability when using inline fuel pumps, but the only time I have seen it be an issue is when using cheap parts.

Well well never thought I'd see the sane engine as my car being built

Great information to know! Just curious but if adding dual injection would this formula still work or would it be a different one?

48 liters per hour 😱 That is economical 🥳

Never seen a good video on this, thank you

This is an amazing series! Part 14 coming anytime soon? I’m motivated to boost my 7A-FE with the stock head now

With your video in hand I'm doing the fuel pump on my Corolla G6 and 2 Celica ST185.
I'm looking forward for a pressure regulator video now !!!

cover head lift next please

With modern injectors i wouldn't be so conservative with injector size. When i modify my cars i usually install ev14 1000cc injectors, unless bigger are needed. I havent had any idle or light throttle issues with them. Usually 600-700cc injector would be fine with my builds but with 1000cc injector i have option to change e85 or bigger turbo without buying new injectors again.

Somewhat unrelated to boosted applications, but if I were to upgrade my intake manifold to something which flows air better than the stock setup would the increase in air pressure be significant enough to validate upgrading fuel pump and injectors? I realize you don’t know what engine I have or any of the differences in specs between the stock and aftermarket intake manifolds but I guess I’m wondering generally for stock, naturally aspirated engines. 😁