Souvenir from an expensive lesson
RacinBob last edited by
Here’s the lesson. When you change a part. Take the time to make sure the replacement is the same...... This is a short lived plug from my Chevy Citation 2.8 V6 X-11 tow car. I changed the front bank but couldn’t get to the rears. Next morning got on the road at 3:50 am going to a race and within a minute on the interstate the engine cut out badly. I found if I ran in 3rd it would keep running. 3 hours later, all front cylinders were dead. I pulled the plugs and saw this.
The problem was that it was the right delco number but it had a E following. The E stands for extended, this plug has an extended tip and the front 4 threads were extending into the cylinder and I am sure were glowing red for the whole trip causing pre ignition. Amazingly I won the race and towed it home and changed the head gasket so I could race again the following week.
All of this would have been had I just compared the new plug with the old.... Just a reminder to always check the parts to see if they are really the same.
Here's the race car
Here's the tow car that lost the plugs
Another of the race car at the 24 hours of nelson ledges. That was my last race in it. They were well engineered but had a couple of problems.
Front hubs were way to weak. I had the carrier machined to accept cavalier hubs which pretty much solved the problem.
You would toss the rod bearings every 2nd race until you put a trapped oil pan it. The oil pressure gauge acted as a dandy G meter. 1 g, no oil pressure.
I didn’t know enough to figure out the front suspension. It did not turn well. Maybe it was roll center, maybe just too long of wheelbase. Whatever, it would destroy brakes trying to get it slowed down so it would make turns.
After 4 years, I ended out upside down on the outside of a carousel because I burned up a new set of pads in less than a half hour. I decided then and there that the car would never be a winner. I bought a Honda CRX and never looked back.
RallyDarkstrike last edited by
Yup, it's funny just how easy it is for little mistakes like this to happen though.....but yeah...Ciatation race car....that's, that's a thing!
Vondon302 last edited by
@racinbob That towing pic is glorious. I had a buddy that had one of these. The road going ones seemed to eat brakes too.
RacinBob last edited by
@vondon302 You know, the Citation was pretty comfortable towing my X-11 which is amazing considering the trailer and racecar weighed about 1000 pounds more than the Citation tow vehicle. And both being hatchbacks, you could load a lot of tires/tools/pitgear into it.
The biggest concern was braking in that you just couldn't expect it to stop that load very quickly. Defensive driving was a must, especially through Minneapolis or Chicago.
I towed that trailer with My X-11 for 7 years before I moved on to a Pontiac Transport minivan.