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Altereds / Re: new member
« on: March 29, 2016, 06:52:14 PM »
Welcome and how about some pictures?
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Tried it out last Sat. Richened it 6% Believe the engine was lean with the original jet as the 6% still showed slight lean. With the jet change, the engine really picked up. Turned 300 more RPMs with the same gear. Bottom line-It was fast for 7 laps-Then pushed out the head gasket. Believe the problem may be too much C/R [over 14.25 to 1] 38-39 degrees timing, but most of all NOT enough Cam Duration. Will rethink the cam before next time out. Also had Ratio rockers [Stock 1 to 1 These were 1.3 to 1 ratio] Not much block or head damage done. It did let out a shower of Sparks. A little show for the Peanut Gallery! Thanks for All your info and input. Al
That's very impresive did you change your timing at all or jet ?Spud, I did try the Toluene 1 quart to 5 gallons of 20% mix and it worked very good. Thank you,Bruce Did you pick up much with the 20 percent ?
I just tried it on the dyno, before it would not even make a pull with 20% Nitro, Added the Toluene and it made a good clean pull and picked up about 65 HP and lots of torque. Normally I just run a few percent as needed to fine tune it to run the 5.00 but nice to know I can run up to 20% now if needed.
Spud, I did try the Toluene 1 quart to 5 gallons of 20% mix and it worked very good. Thank you,Bruce Did you pick up much with the 20 percent ?
Thanks Jon.
It runs consistent low 6.80's @ 200 in the heat. Same plugs all weekend. All iron 392" small Chevy. Stack injected, Enderle 990 pump, 63 degrees, 2.91 rear gear (not a typo), powerglide. Weighs 1700 lbs at the starting line and spools up to 6800 RPM at the finish line. Haven't had the heads off in 6 years. Rings and bearings are now on their 8th and final season. Planning to go through it and put a new crank in it this winter.
Spud
I have a question Why do you mix that with Nitro ?