That won't do a damn thing for You, except kill the fuel mileage & make the engine run warm. I Don't know about the newer MSD boost timing master, but the older dial-type left a lot to be desired when the boost went over 5psi, the settings weren't easily fine tuned because the numbers on the dial represented degrees/lb.-boost...when We had 20psi dialed in the wastegate, it was difficult to zero-in on the correct amount because tiny movements of the knob resulted in much higher effect on the total retard. It worked, with a little water/methanol injection, but was a tedious task.
Couple of thoughts. That pump is way more than you need. Size the pump for your approximate hp level. The regulator is really nice and probably overkill as well. Search around aeromotives website and you’ll find some stuff more appropriate for your build. Mounting an electric pump high up and on the firewall is a no no. Electrics don’t like to pull fuel, they like to push it. So it needs to be gravity fed and way at the back. I prefer in tank pumps. Last thought, be careful mounting your regulator to the firewall also. Most racing sanctioning bodies don’t allow it because it is a safety concern and a serious one. The inner fender is a better location.
I know this pump is over kill but it was the best deal I could find on a pump. All the aermotive pumps on the site are north of $300. I can mount the pump back near the tank. I have never used a intank pump so that was the reason I chose a inline pump because it’s a lot easier to access. If I am going to run 7~8 psi how many psi do I need my pump to be able to provide I might be making this up but I thought I read some where that you need x2 your turbo psi.
There is no ONE correct answer. You need boost pressure+whatever your base fuel pressure is. So fuel pressure needs to rise 1:1 with boost. If you run 7psi of base fuel pressure and 7 psi of boost through a carb you’ll have no fuel flow. So the regulator raises fuel pressure 1:1 with boost. So to maintain 7psi fuel pressure with 7 psi of boost you need 14 psi of fuel pressure. If you run 20psi of boost and 7psi of base fuel pressure you need 27psi of fuel pressure.
Ok I had that general idea down. My plan now is to mount the pump right outside of the tank and then use the hardline up to the front to my regulator. Is the return line important in this setup?
Ok in a earlier post you said you prefer a intank pump. What brand do you use and is it a one size fits all deal or are tanks different from car to car.
A return style regulator is mandatory here. You will not be able to boost reference a dead head style regulator.
And I think with a good carbureted bypass regulator you could use it and get the pressure down.
I am willing to spend the money on a good fuel system because I can reuse it no matter what engine I use. For the timing control under boost would a microsquirt work. It is cheaper than the msd you have more tuning options and I could also expand to mpf.
The gpa 5 looks like like a good option and I think I can use my stock tank. Then the aremotive regulator
Good to hear. Come up with a plan and include a list of parts before you purchase anything. It will help you stick to the plan. And that will save a lot of money in the long run.
I want to run mpf eventually but I don’t know much about it now besides that I was to use a microsquirt or mega squirt
Did some research on this boost controller and the people on the turbo forums are not a fan of it because it is a diagram setup and multiple people have lost there engine to it failing. They recommend the msd 7 digital bet that is a big chunk of cash
Well not entirely true. You can. I used the ms3 to control ignition timing only on my magnum with twins, piggybacking off the jtec ecu before I had it controling fuel as well. It is possible but involves resistors and tricking the ecu in to thinking it’s controling everything. Not something you need to dive in to right now.
Lots of people loose engines for lots of reasons and blame a lot of things. It almost always (on a turbo build at least) has more to do with the tune up and detonation than anything else.
There is a time and a place for everything. I love EFI and on some things there is no better solution. But I feel the same way about carburetors. Hell I just spent $1000 on one for my boat. And I’m so happy I did.
