AlkyIROC

Saturday was a rain out. Sunday was the first race of the season and conditions were almost perfect. Cool, very low humidity and a fairly good barometer.

First time trial pass only got a 11.65. No time for test and tunes since this was a race day. The shift light was coming on just after the finish line so I bumped up the shift point 100 rpm to 6400.

Second pass 11.506
Third pass 11.449
Forth time trial run I ran a 11.382 but the car wasn't feeling right. It was running hot and getting hard to start.

First round of eliminations. I won just after I came out of the hole against a red light so I ran it right out to the end with a 1.442 (engine was getting too hot).
Second round of eliminations I pushed the car through the staging lanes until I was ready to go to the burn out box. Again I won just out of the hole against a red light and ran it out to a best of 11.242 but that's the end of the good news. While I was decelerating after crossing the finish line the engine sounded bad then quit. I coasted to the return road and flagged for the tow truck. The car wouldn't start. I couldn't make the call for the third round since I broke something in the engine.

Towed the car home and used a high amp charger to try starting the car. It cranked slowly but there was a lot of drag on the starter. Not good.

I haven't pulled the engine yet but I suspect I spun a bearing and a con rod is sticking on the crank or seized a piston. Either way it won't be ready to race in 2 weeks. The new engine performed as well as I expected. I was predicting 11.3-11.5 and my best times are now in the sig below




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Follow my racing progress on Stephen's racing page
and check out the race car

87 IROC-Z SuperPro ET Bracket Race Car
461 naturally aspirated Big Block

Best ET on a time slip: 11.242 altitude corrected to 10.69
Best MPH on a time slip: 121.52 altitude corrected to 127.76
Altitude corrected rear wheel HP based on power to weight ratio: 504.5
Best 60 foot: 1.546

Racing at 3500 feet elevation but most race days it's over 5000 feet density altitude!
Member of the Calgary Drag Racing Association

87 IROC bracket car, 91 454SS daily driver, 95 Homebuilt Harley

Phil87IROC

iTrader: (1)

Great times Steve!! Man that engine is stout, even with a tight bearing it hauls!

Sad to hear about the motor. I was looking forward to monitoring your progress this season. I hope you are back to racing it soon. I pray that the block is not damaged beyond repair. Keep us posted and good luck!

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Phil87IROC
Blue '87 IROC, 383 Crate Motor, KB pistons, AFR 190 heads, ZZ-9 cam, Edelbrock RPM intake, Hooker SC/LT headers, Edelbrock 750 cfm Carb (#1411), stock T-5, GM 3.42 rear w/Auburn posi.
Ohio Valley Dragstrip Trophy Bracket WINNER - 8.39 ET on a 1.82 sec. - 60'. Best MPH = 84.44. Still Tuning Carb!
Red '89 IROC L98, 700R4, T-Tops, K&Ns w/open air boxes, 160 T-stat, Hyper Chip, gutted MAF, 53kv coil, MSD wires.

Phil87IROC

iTrader: (1)

What's the latest news on the car Steve?

AlkyIROC

The machine shop is pretty busy right now. I still hope to have everything done and the car running in time for the Fathers Day race. The block needs to be sleeved. I have a new piston ordered. A new con rod needs to be polished, shot peened and resized then balanced with the new piston. Once the new piston arrives, all 8 will have to be flycut to allow valve clearance.

The head is scrap metal. The combustion chamber is cracked to much to be welded. There's a big crack in the intake port. It's even cracked under the valve seat. I can get another head from the machine shop. After I do all the port and polishing, send it back to get the valves and springs set up.

I wish I was racing this weekend. The air is really good. Software tells me my first pass could be a theoretical 11.12 based on my previous best performance.

Parts wise it's not too bad but it's the waiting for parts and machine work that's going to take time.