Pro Stock John

iTrader: (34)

Yeah I'm thinking maybe a hit or two in a parking lot.

I'd never have filmed me last year making 2nd gear pulls on the Kennedy from Irving Park to Foster... (which never happened).

Pro Stock John

iTrader: (34)

I took her out to burn off the old fuel, and then topped it off.

I still have a front end shake/vibration, so will re balance front tires. I should check the shocks and make sure one of them is not leaking.

After a super long drive,including getting stuck in standstill traffic because of an accident, I was just about home when I noticed my coolant temps were really high. Damn the fan wasn't working. Parked, cooled it off and buzzed home.

Cops at the accident scene all liked the car, fender exhaust and all lol.

JinglingBaby

That’s how we do it in the Chi, upside down!🤣

Pro Stock John

iTrader: (34)

Was investigating the fan not working

• Fuse is fine
• Fan works when I used jumper wires
• Ground clicks on the relay when I ground it

Relay could still be bad but also could be the power wires to the relay.

I'm heading to New Orleans for work M-W but have a plan to fix it, should be fine.

As for the shaking / vibration issue, I'm at ground zero on that. Car has been aligned. I'll eliminate wheel / tire issues, will rebalance with a good buddy of mine. Will check front ball joints and tie rods, using the shake test of of mounted wheels. Maybe the tires are flat spotted, I dunno. If the wheel / tires are eliminated as suspects I will have a buddy (Manna probably) drive it and give me his opinion. This issue has held me from making track passes, once I fix it I will make hits at a track. I been making hits on the Kennedy just to 110 mph.

Also cleaned the car, cleaned up some wiring around the car, she looks okay.

Pro Stock John

iTrader: (34)

Spent a week going sideways in the build...

Fan stopped running last weekend, fixed that. Appears to have been the relay, got a slightly better one, and now I'm carrying a spare.

Saw weird values for oil pressure, negative etc., my circle thinks the sensor crapped out. Stock GM piece, I ordered up a Lowdoller replacement.

Once I check balance on front / rears, if the results are inconclusive, ie. not bent, don't take a ton of weight, I'll take it to my friend Anthony Manna and have him figure it out.

Then I'll go to the track and on the 3rd hit I'm setting the 2 step at 3800, leaving on 8 and commanding 20 lbs. lol.

The BallSS

iTrader: (9)

At least they're just little things easily fixed, very curious to see what's up with the front vibration.
Be sure to get video from the track, wheelies are imminent.

Pro Stock John

iTrader: (34)

Anthony thinks it's a balance issue. I hope it's the rear tires.

The BallSS

iTrader: (9)

Jack the rear end up, remove the tires, put the lug nuts back on to hold the rotors and run it up to 60-70mph to test?
Someone have a front set of wheels/tires you can borrow to test?
Years ago, Les Schwab balanced a couple tires for me that were out of round, but they still balanced out fine but definitely wobbled at speed.

Pro Stock John

iTrader: (34)

Rear in the car is extremely narrowed, I'm running 15x12 1.5 backspace wheels.

It's not a big deal for me to pull all 4 wheels/tires and have my buddy Chris S over at AAA in Scokie re balance.

3 window

iTrader: (1)

Do you have the rear shocks set somewhat stiff when street driving? I made that mistake on mine and any runout on the tires was amplified. Set em 2 clicks off full soft and it’s like a caddy now. I’ll just have to adjust em if I pull up next to you or give a girl with big knockers a ride.

Pro Stock John

iTrader: (34)

lol I have them set a little soft otherwise it will probably hurt mah butt.

I just need someone who knows this 67-72 type stuff to figure out what I have set up wrong on it and then I can line up with you haha.

Pro Stock John

iTrader: (34)

I was telling @n2xlr8n66 to keep the faith in his build thread...

Recently had my fan conk out, luckily it was just the relay. So I take the car out for a drive to check the fan, yep still good.

Then I notice really weird oil pressure readings, 6 psi at idle and -2.7 while driving. I pulled out my OEM style sensor and tried a Napa one and a Lowdoller, both reading 0 at idle but engine sounds fine.

A buddy suggested I try an AC Delco sensor, it's on it's way. I'll try that, and if reads zero I'll use my newly purchased mechanical pressure gauge kit (+ an adapter so I can screw it into the engine), and test that and try blowing compressed air into the hole on the sensor. I should know something on Saturday.

3 years been good:


Orig, Napa one, Lowdoller:

gjohnsonws6

iTrader: (12)

Being you’ve already tried two new different sensors I’d go straight with the mechanical gauge and see what’s up. Maybe something in the wiring or an oil pick up tube o ring. Pins loose, bad crimp, start wiggle testing. You need to find out.

n2xlr8n66

iTrader: (3)

I'm pulling for it to be the gauge, John

Good thing we love this hobby.

Pro Stock John

iTrader: (34)

Yeah gonna use a mechanical gauge for sure.

I was talking to a Holley wiring guru, Devin Vanderhoof at Sick Summer GLD today. He said if I am seeing a negative value it's wiring or the sensor, not the engine. That's encouraging.

Pro Stock John

iTrader: (34)

Short version: I'm dumb, oil pressure was fine, everything works.

Handling / shaking issue:
Car has had sketchy shaking/vibration issue for a long time. So I pulled all the wheels off, rears look fine to me. Driver's front, fine. Passenger side front has issues:


I think this happened after we wrapped the down pipe. But a buddy think maybe a blob of weld might have cut the tire.

I'm going to ask some local buddies to redo the down pipe, and I'd like to cut the 'cove' area by the fender to give me more room, like my buddy has:


Either I will have the down pipe redone, re balance rear tires, buy new fronts, rebalance DS and then see how the car is. Also will check pinion and driveline angles.

The BallSS

iTrader: (9)

Don't sweat it John, I've been chasing a boost issue for a few weeks, the car will make 15 lbs. in first but only 12.5 in second and third.
Turns out I'm also dumb lol.

GMCGreg

Do you think that tire damage was done from heat before downpipe was wrapped ? Those missing chunks could easily effect the balance and worse could have separated the belts making it no longer round or true , very good chance you'll be fine when you replace them 🤞

Pro Stock John

iTrader: (34)

We're not sure what cut the tire, maybe one of the stainless zip ties for the exhaust wrap, maybe a weld pimple on the down pipe.

me and my buddies talked, might just do this for now:



So the plan is clearance the pipe like the pic above, I bought new front tires, I will re balance the current rear tires, we will re balance the DS, and I bought solid body mounts too. Should be fine after that i'm thinking, then I'll round up some buddies and hit GLD.

3 window

iTrader: (1)

You could always redo the down pipe and transition to oval tubing to reduce the profile in the tire area. It’ll be wider, but maybe it’ll work.
(smashed tubing makes me cringe!) Lol. Like when you see a guy buy a huge set of headers for his 501 hp big block then smash the **** out of em so they’ll fit next to the steering box. In all honesty, I hope it works out for ya.