Recent content by AlkyUser

I would like to update this post, as I hate threads that have no ending. I am going to add my findings so far. I got some more acurate measuring devices to cc the heads. You would think veternarian syringes would be close to each other but they are not. Final cc of the 49 cc heads after surf...

Thanks for the input. Dart got back to me and said that the valves will self lap in themselves and not to worry.

Thankyou for the info, I am going to try something before I pull the heads, the head gaskets are about $65 cnd. a peice. If I apply air, remove the spring and chuck the stem with a drill motor and spin the valve against it's seat with wd 40 to keep it from getting hot maybe I can lapp them...

I am having leakage on the intake valves of my new Dart heads and valves on my small chevy when shop air is applied into the compustion chamber threw the spark plug hole. I believe that if I had of lapped the valves there would of been no leakage. Is it recomended that valves are hand lapped...

I assembed the motor it has 12.4 to 12.7 to one compresion. and has a cranking pressure of 175 to 185psi. I ended up taking the heads in and surface grinding .026" off -> dart says U can flat mill .060" - .030" I would of been into the intake seat also they were advertised at 49 cc - I got...

I totally agree. Pressure and heat go hand in hand. Increased compresion pressure causes some of the heat. Heat from increased compresion pressure also causes more compresion pressure. I was wondering if you could do the following calculation for me as I am not a engineer. I don't fully...

Thanks for the input, It is looking at just leaving at 12 to 1. The cam is 114.5 lobe seperation, though it is slightly reduced due to the 1.6 rockers I am running. I am not changing the cam unless I run into problems. I agree with the cranking pressure of will be around 250psi. In theroy...

I would like to edit a mistake from the peginning of the thread. I said 50gph - I meant 50LBS Per Hour

I have never heard of detonation when cranking, but there is a table I could play with that would help fix that problem in the chip. I can not copy it, but it basically has 5 degrees of timing on crank up to 180f then it cranks at 0 above 180f. I believe I could put negetive #'s in there.

"Be sure to assemble the methanol plumbing with large bore quick- connects and large radius elbows, so you can easily and quickly rod out the 'cheese'" Has there been blockage problems asociated with meth?

Thanks for the input, The rotating assemble I purchased is ratted for 500 hp and 6500rpm. The cranking pressure will be close to 250 at 12 to 1 and over 250 at 13 to one. This is a educated guess as it was 170 psi at 9.4 to one. And yes 87 octane 9.4 to 1, .075" quench ( yes it was big) and...

Yes acording to the msds they are. I will asume any tunning that I do will be the same when I purchase larger quauties of methanol and run it.

I have been experments using METHYL HYDRATE as a fuel. It is ready available in hardware stores as a Painting supply. The engine that I am using runs fine when af is adjusted to it. I did a search on the internet, and they are said to be the same. Can someone verify this?

I am in the process of assembling the following engine for my 68 camaro and would like to know my compression limit with alcohol. I want to run About 50 GPH of straight meth at the peak. I have a chip burner and a wide band O2 and will zero out the power enrichment on the chip and be putting a...

You will need another means of starting the engine. Gas injection, or start on gas and switch to ethanol, or preheating of the fuel or the intake charge. I almost failed geography but if I remeber Belgium is not exactly warm. Brazil even requires altenative starting means for 100% Ethanol. I...