Progress Thread 12th Owner: My '93 Notchback Restoration & Performance Build

Habu135 said:

I will be selling the R Series once I get the Box R to work.

I've documented most everything on this progress build to include the build list. If you go back and review my posts you'll see.

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Yeah but I don't have time to read it today that's why I was just asking in a nutshell lol. But all good maybe I will at some point get time to check it out

Habu135 said:

Post #860 explains what happened.

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Cool

Habu135 said:

I picked up 30 hp due to a number of factors. The engine was broken in during the second dyno. The engine installer initially overfilled the engine with 10 quarts of oil rather than the correct 7 qts. It had 10 qts during the first tune, 7 during the second tune. I did some exhaust work, and my tuner made peak timing lower in the rpm range during the second tune as suggested by Trick Flow's instructions. The included dyno sheet shows results from both dyno sessions.

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gotcha. I did not see this reply. Maybe it was an overlap between reading one of the last posts and your next reply. I think that's easy sometimes if it's a simoutaneous reply/read something along that line...

Habu135 said:

Car ended up having a blown timing chain cover gasket. Seems to be happy now.

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It's crazy how I replied to your latest topic this morning and ended up checking your thread to see about your engine progress. I didn't have time to look at every page so I picked every 2 pages as the forum skips odd numbers so I just pick the next number and got up to where you were having similar issues to what I'm experiencing after my vortech install on my 94 Cobra.

My issue didn't start till after the SC install and actually when it hesitates and bucks, misses it seems to go away the harder I accelerate. At first it seemed to only do it upon taking off after letting the car warm up but would smooth right out after taking off. I had the tuner change the startup tune and IIRC I think it helped some but the problem still persists. I installed a walbro 255 and 60 lb injectors and had an SCT dyno tune done. I put the 255 in prior to the SC install as I was waiting on the SC to come and I did not have any issues so I wouldn't think it's pump related. I'm getting 13 plus volts at the inertia but i do need to verify volts at the pump. I have to research what wires need to be probed as I briefly today while it was running, i stuck the tip of the probe in the connector but maybe it was not reaching the metal to make contact because i didn't get a reading. I tried 2 wires of the 3 or 4 it has.

I had 2 Taylor plug wires that were iffy because of the wire to boot contact on no. 4 and the terminal was stuck on the plug when I removed the wire the no. 6 so I put on my 2 old FR wires on just to test. I checked for arcing last night and didn't see any at all. I tried another coil as well and also another tfi module. I went back to the coil i originally had on the car today after swapping back on the tfi I removed for another I had lying around, and it actually drove fine and seemed like it was fixed. I went home and knew I was going back out on a 35 minute round trip drive and on the way there it wasn't too bad but on the way back it came back. It was not as bad as it was yesterday though but something is still going on. Just went outside because I was curious. I looked last night in the garage and didn't see any arcing anywhere. The coil I removed this morning, when put the original one back on the car drove better. So last night maybe I didn't look hard enough because tonight I actually looked harder at the coil from different angles, leaning over and stuff and I saw arcing inside the rim of the frame that seats the coil. So I assume that is definitely a problem and I need a new one. Gonna see now what those part number of the 2 coils are. The one that was on that seems to run better is 4G20B and the other is 4G30B ( unless that's an O).

I hope it' just the coil, I don't see any sparks on the wires at all even though the wires are not new. I will replace them at some point but was just trying to diagnose and eliminate stuff. Just checked my timing cover by the way and that looks fine.

Habu135 said:

After nearly a month of my car up on jacks doing trial and error on the new Box R intake and replacing the Kirban adjustable fuel pressure regulator with a stock style, I took it for a spirited drive. Assessing and listening the whole time and then got into it a bit. Stopped to listen and heard and smelled radiator fluid belching out the lower front half of the engine just above the main crank pulley. WTH?!?! Nursed it home and looked underneath and it appears that the water pump gasket blew out just above the main pulley. I even added fresh water to the radiator and sure enough it's just leaking out. Is this a thing? Ugh!!

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if it ain't one thing it's another that's for sure....