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by yoshimitsuspeed
Mon Feb 11, 2013 11:37 pm
Forum: TECH: 4A-GE ENGINE
Topic: 4age 16v timing problem
Replies: 4
Views: 1586

Re: 4age 16v timing problem

I have heard that if you install the gear backwards it will put you a half a tooth off. I forget if it's spinning it 180 or flipping it top to bottom but make sure that gear is installed exactly as it was before you removed it.
by yoshimitsuspeed
Mon Feb 11, 2013 11:33 pm
Forum: TECH: 4A-GE ENGINE
Topic: 4age 1.6 20V silvertop problem
Replies: 3
Views: 992

Re: 4age 1.6 20V silvertop problem

It's unlikely but a big hole in a piston could cause zero compression :twisted: I would do a leakdown just to try to get a good idea of what you will need when you get in there. If it is a valve you could pull the valve cover just to make sure there isn't a sticking valve or something gumming up it'...
by yoshimitsuspeed
Mon Feb 11, 2013 11:26 pm
Forum: TECH: 4A-GE ENGINE
Topic: gze vs. age pistons
Replies: 15
Views: 1871

Re: gze vs. age pistons

There are no 4AGE rods that are prone to failure. The ones found in the 7 rib 16Vs (NA and GZE are the same) are very stout. And have been proven to very high power levels in both NA and boosted form. More importantly boost is not that hard on rods. The most stressful moment in a rods life is under ...
by yoshimitsuspeed
Fri Feb 08, 2013 7:55 pm
Forum: TECH: 4A-GE ENGINE
Topic: 4agze injector questions.
Replies: 9
Views: 1553

Re: 4agze injector questions.

To rule out the AFM and COR jumper it in the diagnostic box. I'm pretty sure it's FP to b+ but you should double check on that. Are you sure everything is connected and routed right? Air filter>AFM>TB>SC>IC>intake mani? Are you sure there are no big vacuum leaks like say the brake booster being unho...
by yoshimitsuspeed
Fri Feb 08, 2013 9:49 am
Forum: TECH: 4A-GE ENGINE
Topic: 4agze injector questions.
Replies: 9
Views: 1553

Re: 4agze injector questions.

Check to see if the fuel pump cuts out a few seconds after you release the starter. This is an indicator that the Circuit Opening Relay (COR) is faulty or not correctly wired. Or if this is an AFM GZE it can be a sign that the AFM is not hooked up, there is a massive intake leak before it or it is ...
by yoshimitsuspeed
Fri Feb 08, 2013 9:46 am
Forum: TECH: 4A-GE ENGINE
Topic: 20V Silvertop run-in strategy, and ARP head studs
Replies: 7
Views: 1468

Re: 20V Silvertop run-in strategy, and ARP head studs

I use the same method as dr.occa
by yoshimitsuspeed
Wed Feb 06, 2013 10:43 pm
Forum: TECH: 4A-GE ENGINE
Topic: 4age
Replies: 4
Views: 1138

Re: 4age

First I wouldn't trust the stock gauge to be terribly accurate. Second 10v is a dying battery. It should read over 12. Even then if it doesn't have the amps it still won't crank. You would notice the voltage drop a lot when you try to crank. The fact that the lights dim tells me it's not likely a fu...
by yoshimitsuspeed
Wed Feb 06, 2013 8:04 am
Forum: TECH: 4A-GE ENGINE
Topic: fuel injector upgrades for blacktop20v?
Replies: 12
Views: 3467

Re: fuel injector upgrades for blacktop20v?

I'm curious what your build is. You running super high compression? at 500cc, it sounds like he might be running a turbo. otherwise, 500cc is way too much for any n/a built engine Before yesterday I would have agreed with you but if you use either of the calculators on the page I linked to they sug...
by yoshimitsuspeed
Tue Feb 05, 2013 5:47 pm
Forum: TECH: 4A-GE ENGINE
Topic: fuel injector upgrades for blacktop20v?
Replies: 12
Views: 3467

Re: fuel injector upgrades for blacktop20v?

I'm curious what your build is. You running super high compression?
by yoshimitsuspeed
Tue Feb 05, 2013 5:44 pm
Forum: TECH: 4A-GE ENGINE
Topic: fuel injector upgrades for blacktop20v?
Replies: 12
Views: 3467

Re: fuel injector upgrades for blacktop20v?

I guess you are kind of right on the cusp.
I bet the 440s would be enough but probably on the low side.

http://www.dsmtuners.com/sub.php?page=e85calculator
by yoshimitsuspeed
Tue Feb 05, 2013 9:11 am
Forum: TECH: 4A-GE ENGINE
Topic: fuel injector upgrades for blacktop20v?
Replies: 12
Views: 3467

Re: fuel injector upgrades for blacktop20v?

so 2jz stock 550cc will fit? directly.. Why are you looking at such big injectors? E85 shouldn't need more than 30% more fueling. I would expect a good bit less. Stockers are 310cc right? 310*1.3 = 403 440s would give you plenty of margin. And are available in a number of cars. 23250-46040 23250-46...
by yoshimitsuspeed
Mon Feb 04, 2013 10:33 am
Forum: TECH: 4A-GE ENGINE
Topic: fuel injector upgrades for blacktop20v?
Replies: 12
Views: 3467

Re: fuel injector upgrades for blacktop20v?

http://www.clublexus.com/forums/performance-and-maintenance/161605-1jz-gte-timing-belt-and-cams-3.html 3SGTE 1JZ 2JZ You can also click through the pics at witchhunter and when you find one that looks compatible search the part no and see what it comes out of and get more info on it. http://witchhun...
by yoshimitsuspeed
Sat Feb 02, 2013 9:20 am
Forum: TECH: 4A-GE ENGINE
Topic: Cylinder 3 spitting?
Replies: 3
Views: 813

Re: Cylinder 3 spitting?

Is there any possible way you have a sticking valve or maybe a tight shim? I can't think of too many reasons why it would do what you describe but a leak on the compression stroke blowing air back out the intake seems about as logical as anything.
by yoshimitsuspeed
Sun Jan 13, 2013 1:36 pm
Forum: TECH: 4A-GE ENGINE
Topic: 4age 16v trouble reving. help please thank you!!
Replies: 3
Views: 1020

Re: 4age 16v trouble reving. help please thank you!!

Modified so the flap door stays open? WTF and why?
This is your problem or part of it.

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