Toyspeed.org.nz Message Board

by **CMS** » Mon Jul 18, 2005 9:54 pm

Hey guys. Currently doing an upgrade on the race car. Carbed 4A-GE is out, (see the For Sale post) and Turbo 4A-GE is going in. Looking to run up to 15psi, looking for 280hp. The big question is, what injectors should i run. I'm hoping for something that will fit the standard fuel rail. (Getting sick of having to fabricate everything!!)

by **Lloyd** » Mon Jul 18, 2005 9:56 pm

The 7M-GTE ones should be a straight fit if you're after top fed, low impedance ones. If you're going for side fed (20V) then the 3S-GTE ones are a decent upgrade.

What 4AGE and computer are you planning on?

by **pidge** » Mon Jul 18, 2005 9:58 pm

The stock 4AGZE injectors (360cc?) should be sufficient for that boost.

Heck the stock 4AGZE MAP ECU is mapped out to 15psi...

by **CMS** » Mon Jul 18, 2005 9:59 pm

She's a 7 rib block with squirters, GZE pistons, and a blue top (16 valve, big port) head. Link Plus ECU. What cc are the 7M injectors?

by **Malcolm** » Mon Jul 18, 2005 10:01 pm

7MGTE ones are 440cc/min - top feed, low impedance
as are st165 3sgte ones

by **CMS** » Mon Jul 18, 2005 10:03 pm

Sold. Anyone got any?

by **Malcolm** » Mon Jul 18, 2005 10:37 pm

no, noone has any

if you could whack a side feed fuel rail in I'd happily sell you some 440cc side feeds for $150, or even 550cc side feeds for $300

by **Lloyd** » Mon Jul 18, 2005 10:56 pm

I've got some low impedance GZE ones you could have for $150+ postage if you're interested. May even have a fuel rail here somewhere

by **Bazda** » Tue Jul 19, 2005 2:59 pm

gze ones wont be enough, well on my car it wasnt, just leaned out after 12psi on the dyno with 60psi pressure in the rail.

my old mans car has 550cc injectors running at 63% and that made 293hp@8400. 360cc wouldnt be enough unless they were running near max where they get inefficient after 80%.

by **CMS** » Tue Jul 19, 2005 5:53 pm

OK, so it sounds like at least 440cc is what I'm after. Any clues on a good source for aftermarket injectors?

by **evil_si** » Tue Jul 19, 2005 6:26 pm

y not vr4 injectors, from memory at 38psi they are abround 440cc,
they are top feed, and fit in the standard 4agze fuel rail if you change te upper o'ring, all you need to do is change the plugs,

i have a set for $220 including postage :lol:

by **spencer** » Wed Jul 20, 2005 11:15 am

As above if evo ones fit thats what I've got for my setup if it ever gets going. As they get more late model they get bigger so look around on trademe

Someone on NZMMC wrote: evo 1-4 injector size: 510cc/min
evo 5-6 injector size: 560cc/min

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