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Search: Posts Made By: Andreas_91GTA
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Forum: Tech / General Engine
05-05-2024, 10:55 AM
Replies: 21
Views: 468
Posted By Andreas_91GTA

Re: Wierd ticking problem

Changed to 10w-40 and set the rockers for the 10th time. Still ticking under load. Judging by the frequency it sounds like it's one cylinders intake or exhaust pulse. Quiet when cruising. I'm...
Forum: TPI
04-23-2024, 12:48 PM
Replies: 129
Views: 20,739
Posted By Andreas_91GTA

Re: FiTech 38350 ECU

Ah, ok. No the oil pressure is still monitored by the car.
Forum: TPI
04-23-2024, 12:16 PM
Replies: 129
Views: 20,739
Posted By Andreas_91GTA

Re: FiTech 38350 ECU

Stock dash gauge, or don't you have one?
Forum: Tech / General Engine
04-17-2024, 06:47 AM
Replies: 21
Views: 468
Posted By Andreas_91GTA

Re: Wierd ticking problem

No, thats why still ticking was filed under "bad" :)

Im gonna try with a little bit thicker oil and set rockers 1 turn after zero lash. My suspicion right now is that a lifter isn't pumping up...
Forum: Tech / General Engine
04-15-2024, 03:14 PM
Replies: 21
Views: 468
Posted By Andreas_91GTA

Re: Wierd ticking problem

Yep, I might just do that. I changed oil after changing the heads, then I changed again after the head studs leaked some coolant in my engine. The motor is rebuilt and has 1000 miles on it. It runs...
Forum: Tech / General Engine
04-15-2024, 02:30 PM
Replies: 21
Views: 468
Posted By Andreas_91GTA

Re: Wierd ticking problem

Good news and bad news.

Good: The intake bolts are nowhere near the pushrods. Can't even see them sticking out at all.
Bad: Still ticking.

Could it be oil pressure related, making a lifter...
Forum: Tech / General Engine
04-15-2024, 07:32 AM
Replies: 21
Views: 468
Posted By Andreas_91GTA

Re: Wierd ticking problem

Absolutely. Just did the one-bolt-at-a-time on my leaky head studs.
If it is - then another washer or two should do the trick. As you and I know, the SuperRam hell is the runners :(
Forum: Tech / General Engine
04-15-2024, 07:05 AM
Replies: 21
Views: 468
Posted By Andreas_91GTA

Re: Wierd ticking problem

God d*mmit you're a champ. Fingers crossed it isn't my problem ;)
Forum: Tech / General Engine
04-15-2024, 06:42 AM
Replies: 21
Views: 468
Posted By Andreas_91GTA

Re: Wierd ticking problem

Maybe it's just a combination of noisier valvetrain, compared to the old self aligning setup. And in combination with 5w-40 synthetic oil. Maybe the lifters can't hold pressure with that light, free...
Forum: Tech / General Engine
04-15-2024, 06:14 AM
Replies: 21
Views: 468
Posted By Andreas_91GTA

Re: Wierd ticking problem

Didn't notice that (about length) but I also didn't reuse the old torx head intake bolts. I changed to regular bolts of appropriate length. The car din't tick with ordinary bolts on the stock intake...
Forum: Tech / General Engine
04-15-2024, 05:44 AM
Replies: 21
Views: 468
Posted By Andreas_91GTA

Re: Wierd ticking problem

Interesting, I will have to check that out since I changed intake from stock GM to Edelbrock 3860 to match my SuperRam. But how can any center intake bolt even reach the pushrod? Aren't the intake...
Forum: Tech / General Engine
04-15-2024, 04:34 AM
Replies: 21
Views: 468
Posted By Andreas_91GTA

Wierd ticking problem

First - I have searched the forum! :)

I swapped heads on my 91 GTA, from cast iron to Corvette 128 aluminum, and by doing that I also changed rockers from self aligning to guide plates.
And now...
Forum: TPI
04-02-2024, 08:24 AM
Replies: 13
Views: 524
Posted By Andreas_91GTA

Re: Need help on connector for 1987 iroc

My egr connector is (was) at exactly that space, behind drivers side head.
Forum: TPI
04-02-2024, 07:58 AM
Replies: 13
Views: 524
Posted By Andreas_91GTA

Re: Need help on connector for 1987 iroc

EGR. Must be
Forum: TPI
03-05-2024, 02:11 PM
Replies: 6
Views: 330
Posted By Andreas_91GTA

Re: FiTech swap

That should not be an issue, as long as you know the size of you injectors and run stock fuel pressure. I run Accel super ram, stock injectors and pump.
Forum: TPI
03-05-2024, 11:47 AM
Replies: 8
Views: 468
Posted By Andreas_91GTA

Re: Suggestions For Mods

Yes, narrow body self aligning rockers will fit. However, I and several others found out that the rocker can press on the valve spring keeper instead of the valve itself. That can end up in a...
Forum: TPI
03-05-2024, 11:34 AM
Replies: 6
Views: 330
Posted By Andreas_91GTA

Re: FiTech swap

Are you keeping the tpi-setup (including pump and fuelrails with stock regulator) to bolt on your crate? If so, then you're all good. If you decide to put bigger injectors you just put in the new...
Forum: Tech / General Engine
02-22-2024, 02:37 AM
Replies: 24
Views: 1,544
Posted By Andreas_91GTA

Re: Why did you choose for a Third Gen?

It was my dream back in 91 when I took my drivers license. So, since two years I own a 91 GTA. It will stay with me until the day I die.
Forum: Tech / General Engine
01-13-2024, 09:09 AM
Replies: 91
Views: 2,742
Posted By Andreas_91GTA

Re: Order of Engine Upgrades? Heads, then Cam?

My "garage" is a family shared space with my GTA, wifes winter storage of flowers, toys, garden tools and everything else. There's hardly any room for anything but I somehow managed to keep my car...
Forum: Tech / General Engine
01-12-2024, 05:11 PM
Replies: 91
Views: 2,742
Posted By Andreas_91GTA

Re: Order of Engine Upgrades? Heads, then Cam?

Yep, got it today

Here's what I recommend to use with the OEM lifters.
Cam#: LT1, HR66316-69316-110
211/220@.050"
.316"/.316" Lobe Lift
.505"/./505" Valve Lift
110 LSA

Seems like a...
Forum: Tech / General Engine
01-10-2024, 04:56 AM
Replies: 91
Views: 2,742
Posted By Andreas_91GTA

Re: Order of Engine Upgrades? Heads, then Cam?

I filled out the form at Jones (monday) but no reply yet.
Forum: Tech / General Engine
01-09-2024, 08:55 AM
Replies: 91
Views: 2,742
Posted By Andreas_91GTA

Re: Order of Engine Upgrades? Heads, then Cam?

Summit 8801 cam looks good.
D*mmit!!!
Forum: Tech / General Engine
01-08-2024, 01:06 PM
Replies: 91
Views: 2,742
Posted By Andreas_91GTA

Re: Order of Engine Upgrades? Heads, then Cam?

What's your take running the promaxx springs on a stock cam? With 1.6 rockers I'm in .470 territory with the stock cam. .130 until coil bind. I worry about too high spring pressure with them.
...
Forum: Tech / General Engine
01-08-2024, 10:03 AM
Replies: 91
Views: 2,742
Posted By Andreas_91GTA

Re: Order of Engine Upgrades? Heads, then Cam?

Project x 185 cc with roller springs
Heads and cam are stock L98 from 91. Can't remember the casting# right now.

Btw, let's not hijack the OP's thread completely :)
Forum: Tech / General Engine
01-08-2024, 08:58 AM
Replies: 91
Views: 2,742
Posted By Andreas_91GTA

Re: Order of Engine Upgrades? Heads, then Cam?

Ha! I'm in exactly in the same spot as you, more or less. I did the 1.6 rockers, I put on an Accel/Lingenfelter intake and now I have a set of ProMaxx heads (with hyd.roller springs capable of .600...
Forum: TPI
01-05-2024, 07:02 AM
Replies: 129
Views: 20,739
Posted By Andreas_91GTA

Re: FiTech 38350 ECU

Correct. Speedo and tach are outputs.
Forum: Engine/Drivetrain/Suspension Wanted
11-05-2023, 05:38 AM
Replies: 0
Views: 249
Posted By Andreas_91GTA

WTB dyno don headers

Looking for a used (but ok) set of Don's headers without air tubes. Must be willing to ship. I'm in Sweden :)
Forum: TPI
09-11-2023, 10:30 PM
Replies: 129
Views: 20,739
Posted By Andreas_91GTA

Re: FiTech 38350 ECU

Yes, 3-4 is as perfect as it can be!
Forum: TPI
09-11-2023, 02:26 PM
Replies: 129
Views: 20,739
Posted By Andreas_91GTA

Re: FiTech 38350 ECU

Komet just out of curiosity. What's your IAC count with warm engine, ideling in park? (You'll find that on the handheld dashboard if you scroll down a little).
Forum: TPI
08-09-2023, 06:08 PM
Replies: 17
Views: 1,687
Posted By Andreas_91GTA

Re: Fitech 38350 Tpi stand-alone ecu vs dynamic ebl flash 2

Well, hanging out of the car is fine. Just keep it as a backup if you run into major problems with the fitech and need the car to be running.

My harness was severly cut, added, shortened,...
Forum: TPI
08-09-2023, 01:19 AM
Replies: 17
Views: 1,687
Posted By Andreas_91GTA

Re: Fitech 38350 Tpi stand-alone ecu vs dynamic ebl flash 2

Leave the old harness until everything is working.
Start from inside. You have to drill a ~50 mm hole through the firewall and put a rubber grommet for protection and then start pushing the new...
Forum: DFI and ECM
08-03-2023, 12:35 PM
Replies: 11
Views: 4,329
Posted By Andreas_91GTA

Re: FiTech Ultimate TPI standalone?

A week or so (Im in Sweden)
Forum: DFI and ECM
08-03-2023, 11:37 AM
Replies: 11
Views: 4,329
Posted By Andreas_91GTA

Re: FiTech Ultimate TPI standalone?

Depends on your engines behavior, imho. The fitech system is not forgiving regarding installation and looking for faults or irratic engine behavior after installation sounds like a needle in a...
Forum: TPI
07-30-2023, 10:13 PM
Replies: 17
Views: 1,687
Posted By Andreas_91GTA

Re: Fitech 38350 Tpi stand-alone ecu vs dynamic ebl flash 2

Correct, electric speedo. And also worth mentioning is my car has a fresh 355 in it with new everything (except AC, which is completely out of the car) so if anything bad happened after the...
Forum: TPI
07-30-2023, 09:44 PM
Replies: 17
Views: 1,687
Posted By Andreas_91GTA

Re: Fitech 38350 Tpi stand-alone ecu vs dynamic ebl flash 2

I bought a chip for $200 and then after a month a bought the fitech. That was an unnecessary $200......

You can also have the fitech as an error checking device. If something is up with your...
Forum: TPI
07-30-2023, 04:12 PM
Replies: 17
Views: 1,687
Posted By Andreas_91GTA

Re: Fitech 38350 Tpi stand-alone ecu vs dynamic ebl flash 2

No problems what so ever. My guess is the criticism online comes from faulty or at least semi-faulty installations. The system is sensitive! You want a good battery, good wiring everywhere, make sure...
Forum: TPI
07-30-2023, 03:59 AM
Replies: 17
Views: 1,687
Posted By Andreas_91GTA

Re: Fitech 38350 Tpi stand-alone ecu vs dynamic ebl flash 2

Me and a friend installed a fitech 38350 on my 91 a couple of months ago. It took a full day from lunch to midnight, mostly beacause it was hard to reach stuff, stuck lambda probe etc.etc. We didn't...
Forum: TPI
06-22-2023, 03:54 PM
Replies: 129
Views: 20,739
Posted By Andreas_91GTA

Re: FiTech 38350 ECU

Has anyone hooked up their stock 3rd gen speedo to fitechs speedo out? I bought a Dakota digital sg100bt to translate the fitech signal to my dash but still no luck. The vss is working (shows correct...
Forum: TPI
06-07-2023, 04:03 PM
Replies: 129
Views: 20,739
Posted By Andreas_91GTA

Re: FiTech 38350 ECU

Set my IAC today. It was ideling with IAC 60 before adjustment and now below 10. Feels quicker off the line now when the throttle blades are providing air from the first millisecond instead of the...
Forum: TPI
06-01-2023, 01:50 AM
Replies: 129
Views: 20,739
Posted By Andreas_91GTA

Re: FiTech 38350 ECU

So, just an update.

Fan 2 issue is solved. Previous owner did a single feed from battery to both relays, and the parallel hook up by the relays (hidden inside a loom) must have been glitchy. So,...
Forum: TPI
05-20-2023, 05:25 PM
Replies: 129
Views: 20,739
Posted By Andreas_91GTA

Re: FiTech 38350 ECU

Ok, so, besides having no speedo the car feels really good. Haven't timed 0-60 before/after or anything but it sure feels like it has more power down low. I guess the fitech adjusts timing and afr...
Forum: TPI
05-20-2023, 03:34 AM
Replies: 129
Views: 20,739
Posted By Andreas_91GTA

Re: FiTech 38350 ECU

Just installed with a friend (with way more knowledge about wiring). Since previous owners have hacked into the stock harness we couldn't get fan2 to work. Will sort that out. Anyways, apart from a...
Forum: Tech / General Engine
03-18-2023, 06:53 AM
Replies: 9
Views: 584
Posted By Andreas_91GTA

Re: Enough vacuum?

Bought a smoke machine and found a loose bolt holding the throttle wire bracket. Should've checked it and saved money but oh well...."learning investment". Now it's pulling 19-20 hg and starts right...
Forum: Tech / General Engine
03-12-2023, 11:04 AM
Replies: 9
Views: 584
Posted By Andreas_91GTA

Re: Enough vacuum?

Yes, surging. When the rpms dropped so did the vacuum. I guess it's the IAC letting air in keeping it running? It was going (guessing) between 500 and 1000 rpm a couple of times. This is when it was...
Forum: Tech / General Engine
03-12-2023, 05:54 AM
Replies: 9
Views: 584
Posted By Andreas_91GTA

Re: Enough vacuum?

I dont know what im suspecting. Today after 5 min running the idle started to wander all over the place. Could it be something temperature related?
Forum: Tech / General Engine
03-11-2023, 06:27 PM
Replies: 9
Views: 584
Posted By Andreas_91GTA

Re: Enough vacuum?

Yep, stock cam. Can't really think of anything else other than a small leak making it behaving like this. I have resetted the IAC, triple checked every connection and replaced all vacuum hoses.
Kind...
Forum: Tech / General Engine
03-11-2023, 12:48 PM
Replies: 9
Views: 584
Posted By Andreas_91GTA

Re: Enough vacuum?

Wish I knew. The real difference is cold starting where the original just started really strong and the super ram wants some throttle first 5 seconds to not stall.
Forum: Tech / General Engine
03-11-2023, 10:32 AM
Replies: 9
Views: 584
Posted By Andreas_91GTA

Enough vacuum?

Switched to an Accel super ram and feels it's a little bit hesitant to idle. It starts but....i dont know....doesnt feel as on-it's-toes like it did with the old GM tpi-setup. It pulls 17 hg vacuum,...
Forum: DFI and ECM
01-11-2023, 05:36 AM
Replies: 11
Views: 4,329
Posted By Andreas_91GTA

Re: FiTech Ultimate TPI standalone?

Started tinkering with it yesterday. Super Ram almost in place (need to cut the wiper motor plastic cover...) but I'm now wondering if I should start with the Fitech main ECM unit and work myself...
Forum: DFI and ECM
12-16-2022, 01:21 AM
Replies: 11
Views: 4,329
Posted By Andreas_91GTA

Re: FiTech Ultimate TPI standalone?

Komet I really dont know what the pump is doing right now. The line going to the (dual) cats was plugged when I bought the car, and the car went through inspection in June -22 with flying colors,...
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