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Old 02-18-2013, 02:26 PM   #226
maxpowr
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my intake cam gear seal on cyl one is slowly eye dropper drippin directly onto my header.

it makes the pssst sound and vaporizes.

i immediately thought of kelly when i saw the smoke.

since it has goten a lil warmer it stopped leaking. or it wasnt the cam gear seal and i havent found the source yet.
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Old 02-18-2013, 05:59 PM   #227
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Man you guys, lets make sure there are no leaks, take precautions , be safe!
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Old 02-18-2013, 06:27 PM   #228
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Quote:
Originally Posted by maxpowr View Post
my intake cam gear seal on cyl one is slowly eye dropper drippin directly onto my header.

it makes the pssst sound and vaporizes.

i immediately thought of kelly when i saw the smoke.

since it has goten a lil warmer it stopped leaking. or it wasnt the cam gear seal and i havent found the source yet.
One of the front cam cap bollt snapped on my once and did the same thing. Check it out
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Old 02-21-2013, 12:32 PM   #229
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Cold start has been shaky the past few days and I think I found out why. Almost immediately after my pump primes the fuel pressure drops to zero I suspect it the cheapo Aeromotive FPR I'm running and not a leaking injector. Fuel pressure is fine once up and running and restarts once up to temp aren't a problem either.

Anybody recommend a good FPR?

If it is a leaky injector could that explain the 130 psi compression #s I got on cyl 1? I guess I have some work to do this weekend.
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Old 02-21-2013, 12:47 PM   #230
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Do you have a check valve on the feed line?
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Old 02-21-2013, 02:10 PM   #231
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I have that fuel lab one and it seems to be working fine for me.

Thinking about the air flow, if it can get to an injector while Doing a compression check couldn't the air just go right out the intake??

All that is getting measured is the compression of the air when all 4 valves are closed, so if anything couldn't it be a valve? I could be way off here but just thinking off the top of my head.
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Old 02-21-2013, 02:43 PM   #232
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No check valve on the feed. I'm still on the stock hardlines. Doesn't the intank pump have a check valve in it. I have the DW intank pump.

I'm gonna cap the retutn line, prime the pump, then see if pressure still drops. That at least will rule out a leaky FPR.

I was planning on going to the track tonight but it looks like that's on hold now.
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Old 02-21-2013, 02:49 PM   #233
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Quote:
Originally Posted by Layvon View Post
I have that fuel lab one and it seems to be working fine for me.

Thinking about the air flow, if it can get to an injector while Doing a compression check couldn't the air just go right out the intake??

All that is getting measured is the compression of the air when all 4 valves are closed, so if anything couldn't it be a valve? I could be way off here but just thinking off the top of my head.
I was thinking more on the lines of leaky injector = slight bore wash = lower compression because the rings never seated as much.

When running the car still runs like a champ though. I logged 0-60 in 3.9 today with a mild 4400 rpm launch. I find out more tonight.
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Old 02-21-2013, 03:05 PM   #234
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Complexity of motors >> me
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Old 02-21-2013, 05:50 PM   #235
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i assumed my fragola fuel filter is a check valve...no? just directional flow?
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Old 02-21-2013, 07:10 PM   #236
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Some fuel filters have that built in (maybe Earl's ) my fuel lab doesn't.

From what Kelly is saying (starts fine on warm starts) do you think a check valve would help?

I didn't give it any thought on my system but my pumps aren't wired yo the 3 second delay shut off.

**Edit** didn't.see the post at 242 (1142)

Last edited by Layvon; 02-21-2013 at 07:15 PM.
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Old 02-21-2013, 09:09 PM   #237
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Quote:
Originally Posted by maxpowr View Post
i assumed my fragola fuel filter is a check valve...no? just directional flow?

c'mon Jake, you should never assume.







No check valve in there sir.

It's just cheaper to machine one cap instead of two.

and the way the filter is setup, fuel HAS to enter the filtering media before it can be consumed.

Did you switch over to ethanol yet Jake?

Kelly,

The Aeromotive A1000 you're running is perfectly fine, the Fuel lab and the Aeromotive are almost identical designs.

Do you still have your evap system hooked up?

do you only have the problem on cold start?


If it was the FPR it would do it all the time.

-Phil
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Old 02-21-2013, 11:47 PM   #238
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The problem only show itself on cold start only because of the pre crank prime. It sprays fuel before it cranks to help cold start. I tested it today and it is the FPR bleeding down. I got the compact fpr not the A1000. Time to upgrade.
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Old 02-22-2013, 12:02 AM   #239
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Quote:
Originally Posted by kellygnsd View Post
The problem only show itself on cold start only because of the pre crank prime. It sprays fuel before it cranks to help cold start. I tested it today and it is the FPR bleeding down. I got the compact fpr not the A1000. Time to upgrade.

ohhh,

jess time to upgrade, for some reason I thought you had the A1000.

I have the A1000 available in all black too,

check out a red/silver and black in comparison. Still small footprint.




PM I'll give you a great deal on whatever you brand you end up going with, I can virtually get any brand FPR period.

-Phil

FWIW I have the A1000 and don't have issue with cold starts, fires right up no idle issues.
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Old 02-22-2013, 12:18 AM   #240
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I have an a1000 and no cold start issues on 93 pump and e85.
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Old 02-22-2013, 12:24 AM   #241
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I'll talk to you tomorrow Phil. First run at the track I ran a 8.203 @ 86 mph but I hit the rev limiter in 1st and second. One more run and I'm out.
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Old 02-22-2013, 12:53 AM   #242
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Quote:
Originally Posted by kellygnsd View Post
I'll talk to you tomorrow Phil. First run at the track I ran a 8.203 @ 86 mph but I hit the rev limiter in 1st and second. One more run and I'm out.
whats the limit set at?

So you would be running mid 12's in the 1/4

conservative tune too yeah?


I can't wait too see the boost turned up!
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Old 02-22-2013, 01:01 AM   #243
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i ran into this issue when i ran an a1000 on my car. I had to add the aeromotive check valve to the fuel filter. Now i run (2) bosch 044's which have check valves on the outlets already
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Old 02-22-2013, 01:09 AM   #244
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Quote:
Originally Posted by Full-Race Geoff View Post
i ran into this issue when i ran an a1000 on my car. I had to add the aeromotive check valve to the fuel filter. Now i run (2) bosch 044's which have check valves on the outlets already
Thats weird.

I have no such issue Im on a FP 76HTA BB Red (stock location GT3076R) with ID1000's, Aeromotive topfeed rails, and A1000

No cold start issues what so ever.

That would be a cheaper option than replacing the FPR if that's the issue.
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Old 02-22-2013, 06:44 AM   #245
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Geoff - Did you use the stock 044 check valve or did you buy the one that is similar to this

Regardless of what method you went with, good results?
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Old 02-22-2013, 08:09 AM   #246
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I'm thinking...why do you even need a check valve? The pump is always running while the engine is running and making pressure directionally. Only time you'd see a chance for fuel to go backwards is if the pump was off...

I guess we are talking about on start up only.
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Old 02-22-2013, 10:50 AM   #247
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Quote:
Originally Posted by Flat 4 Motorsport View Post
whats the limit set at?

So you would be running mid 12's in the 1/4

conservative tune too yeah?


I can't wait too see the boost turned up!
The hard rev limit is set at 7300 I believe but i don't think that's the problem. I'm using a bastardized trigger setup with the Link since in running non-AVCS heads in my STi. I'm using the trigger settings for a JDM V7-10 motor and I think the thresholds need tweaking. Rapid acceleration in first and second gear sometimes triggers a rpm limit way before redline on my tach. Just more stuff that needs tweaking but i can't complain about how it runs everyday. Its a blast.
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Old 02-22-2013, 10:57 AM   #248
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Quote:
Originally Posted by maxpowr View Post
I'm thinking...why do you even need a check valve? The pump is always running while the engine is running and making pressure directionally. Only time you'd see a chance for fuel to go backwards is if the pump was off...

I guess we are talking about on start up only.
Quote:
Originally Posted by kellygnsd View Post
The problem only show itself on cold start only because of the pre crank prime. It sprays fuel before it cranks to help cold start. I tested it today and it is the FPR bleeding down. I got the compact fpr not the A1000. Time to upgrade.

Fuel pressure bleeds to zero immediately after the pump primes before I start the car. I need to wait until the laptop connects so I can log cold start. By that time pressure is zero so no pre crank prime.

Last edited by kellygnsd; 02-22-2013 at 09:06 PM.
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Old 02-22-2013, 09:10 PM   #249
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1250 miles on the motor so far. I'm starting to trust it more and more and will be looking to crank up boost a little more soon.
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Old 02-22-2013, 09:57 PM   #250
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Quote:
Originally Posted by kellygnsd View Post
1250 miles on the motor so far. I'm starting to trust it more and more and will be looking to crank up boost a little more soon.
You'll never trust it, its a Subaru.

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