Sense of Humour is a "MUST HAVE"

[splicer]

After an excruciatingly long winter, and spending countless weekends installing Max Wedge ported Indy heads, MW intake, frame connectors, and new high performance brakes, I finally got to go to the drag strip this past Saturday.
Nice day, about 20 deg (75 F), sunny with light breeze.

First run in the left lane and blow the tires off....slip and slide
Second run in right lane, stick good and run 11.39 so upsize jets 3 steps
Third, fourth and fifth runs, even with some jet fiddling, are all 11.18's

Upshot of all this, is that the car is running EXACTLY THE SAME times it ran last year, before all the winter upgrades !!!!!

My buddy and I load the car and head off home, depressed and scratching our heads trying to figure out what went wrong........

About 10 miles from the track, the light bulb finally goes on in my head and I started to laugh....

My buddy asks what's so funny and I explain......

The one thing I didn't change during the winter is....................THE CAMSHAFT........

Seems that my little solid roller bumpstick(duration 242/248, lift .570/.576) is maxed out and doesn't care HOW big the heads are...LOL


Anyway, we had a good chuckle and a nastier stick is in the works...

Hope you got a grin:toothy10:

Splicer

 

[Budnicks]

good luck, seems to me, at-least with the better flowing heads {if they are better, for your combo} should have done something improvements/better, even with the same camshaft in ET's/MPH, you had to richen it up means it's using more fuel, generally means more power... what heads were on it before ??, did the 60ft time improve or 330 times or did they fall off etc., do you have any comparison #'s between the 2, what was the altitude at, grains of water, relative air density, even track surface temps ??, was it a green track, how much wheel spin or traction loss ??, did it ever actually hook ??, is the car working like it should, with the new stuff ??, did you try different ignition timing settings ??... A better bump-stick won't hurt any either... any of those could have effected the combo, a couple of tenths easily, just curious... Good luck, either way

 

[splicer]

Budnicks, I appreciate your curiosity, lol

Car is running exactly as it did last fall.....last 4 runs were dead hooks, 0 to 60ft=1.60(same as last fall), mph at 122 is same..have all my time slips and nothing has improved or worsened.

Last time out last year, jets were dropped to 82 square to accommodate some warm weather....this time, ran 11.39 on the 82's, 11.17 on 85 square, and then 2 x 11.18 on 87 square.

Timing is same, new slicks(same size), same 950HP DP carb, and same shift point at 6000 rpm

Previously installed heads were OOTB Edelbrock RPM's with Holley street dominator single plane.

I changed the heads to full MW ported Indy EZ's(from Modern CylinderHead in Michigan) because I suspected the Eddy's were running out of breath.
Was also told that by IQ52 and I agree.

At this point with 35% better flow available, I think the bottleneck must be the cam.

First step is to install 1.6 rocker arms(allready have them) and see if additional lift perks it up.....if it does then Comp has recommended a custom grind with 253/262 duration at .050 and .684/.688 lift

Splicer

- - - Updated - - -

I should add that engine is a 505 CI stroker with 10.5 compression....

Splicer

 

[Budnicks]

Sounds good splicer, IQ52 Jim knows his stuff... thanks for the response/answers