Question about fuel injectors

[borisupra]

Hello people,what kind of factory injectors the 7mgte have and how much cc's would be considered efficient for a slighty mod Supra MK3 i mean a bigger turbo ,intercooler, 3" inch exhaust just a start thanks

 

[89nasupra]

What boost level are you running? Most common injector up grade is 550 CC with a Lex AFM. You may want to look in to a piggy back of some sort and a wide band to help you keep everything in order.

 

[borisupra]

Just factory specs i just bought it while i was on leave and im in iraq so i cant work in it till im home in around 4 months so im just in the planning phase

 

[89nasupra]

Oh ok gotcha. You will notice that is a popular up grade for our cars. There is a few write ups on here if you just search alittle.

On a nother note, My family and I would like to thank you and all fellow service men and women for what you are doing out there.

 

[hvyman]

How much bigger will the turbo be?

stock injectors and fuel pump max out around 330hp. Stock is only 230hp.

 

[borisupra]

---------- Post added at 12:24 PM ---------- Previous post was at 12:22 PM ----------

[/COLOR]

Oh ok gotcha. You will notice that is a popular up grade for our cars. There is a few write ups on here if you just search alittle.

On a nother note, My family and I would like to thank you and all fellow service men and women for what you are doing out there.

--------Thank you for your support really apreciated

---------- Post added at 12:28 PM ---------- Previous post was at 12:24 PM ----------

How much bigger will the turbo be?

stock injectors and fuel pump max out around 330hp. Stock is only 230hp.

Dont know yet stillin the search phase on that one you have any recomendations?

 

[figgie]

If you never driven a 400rwhp car... i suggest you start with 550 and the lex afm. This is the most inexpensive route to go with. Otheriwse you have to invest in piggy backs or standalones which will quickly quadruple the price tag.

 

[borisupra]

how much would a lex afm cost?

 

[89nasupra]

It depends on the condition of the AFM. Guys help me here, if I'm not mistaken you can use your current AFM electronics and just swap out the housing. I remember reading something about doing that but not 100% sure on it.

 

[SideWinderGX]

The housing is what you are interested in, look in the for sale section, they're pretty cheap. You can use your electronics or the Lexus' electronics depending on what part number is on it.

The Lexus part number that works is one more than the Toyota's AFM part number.

 

[hvyman]

Electronics are the same.

 

[Supra0089]

I'm in the process of doing this upgrade. Here is what you're looking at:

550cc Injectos ~350-400
Lex AFM ~75-100 (used)
AFPR ~120
Wideband ~175
Fuel Pump ~50-75

Prices will vary depending on what brands you get, and who you're supplier is....

 

[Koenigturbo]

If you never driven a 400rwhp car... i suggest you start with 550 and the lex afm. This is the most inexpensive route to go with. Otheriwse you have to invest in piggy backs or standalones which will quickly quadruple the price tag.

Question: are you saying with this set up, he does not need a piggy back or a A.P.F.R.? From reading here, most everyone recomends a A.P.F.R. and possible tweeking of the air screw in the Lexus A.F.M. I think possibly you forgot to mention that, I could be wrong.

 

[Supra0089]

Yup, and this is why we need one of the experts to write a Lex AFM, 550's, AFPR, pump mod sticky! PRetty Please!

 

[WhtMa71]

With lex afm and 550's you don't need a piggyback. If you stick a walbro pump in the mix, you will need an AFPR. Well, you don't need it but you will at least have to drill out the j tube and it is recommended.

 

[Koenigturbo]

With lex afm and 550's you don't need a piggyback. If you stick a walbro pump in the mix, you will need an AFPR. Well, you don't need it but you will at least have to drill out the j tube and it is recommended.

Whtma71, that's good answer. what's the cut off point for as far as boost on this set up? Can you go 18ish?

 

[89nasupra]

With lex afm and 550's you don't need a piggyback. If you stick a walbro pump in the mix, you will need an AFPR. Well, you don't need it but you will at least have to drill out the j tube and it is recommended.

What would happen if you just bypass the J-tube with the stock regulator?

 

[hvyman]

Nothing. You only need to drill/ bypass the j-tube if you get a bigger fuel pump. The tiny hole acts as a back up fpr just in case the fpr goes bad.

 

[89nasupra]

Oh ok. So you only need to bypass/drill out the J-tube if you want more adjustability out of the aftermarket regulator?

 

[hvyman]

Oh ok. So you only need to bypass/drill out the J-tube if you want more adjustability out of the aftermarket regulator?

NO> You only drill/bypass if you get a bigger fuel pump.