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> My 914-6 project, That's a rap, Thanks Everyone!!!
sixnotfour
post Aug 3 2011, 07:04 PM
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looks great
What cams are you planning ?, Those piston wont allow much of a cam or compression that would warrant twinplug.
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Socalandy
post Aug 3 2011, 08:57 PM
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thanks, I need to ask my buddy again on the re-grind of the cams. 9.8:1 + twin plug. why do you say its not warranted? you wont hurt my feelings but I'd like to hear the Six Guru's take on the subject
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Socalandy
post Aug 3 2011, 09:25 PM
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here's two pics of the Shuffle pins


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campbellcj
post Aug 3 2011, 09:38 PM
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QUOTE(Socalandy @ Aug 3 2011, 07:57 PM) *

thanks, I need to ask my buddy again on the re-grind of the cams. 9.8:1 + twin plug. why do you say its not warranted? you wont hurt my feelings but I'd like to hear the Six Guru's take on the subject


I'm not sure, but what he might mean is you could go more aggressive on compression and cams than what you have?

I am in the same boat with my engine - it's twin-plugged with agressive cams but only 10.5:1 c/r and I would have preferred more like 12:1 if I had it built myself. When it needs to come apart I may go more extreme.
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moparrob
post Aug 3 2011, 09:53 PM
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Isn't that the main reason to go dual plugged? To allow you to take advantage of the higher compression ratio? I suppose you still have the limitations of pump gas though, especially here in CA.
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campbellcj
post Aug 3 2011, 10:07 PM
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QUOTE(moparrob @ Aug 3 2011, 08:53 PM) *

Isn't that the main reason to go dual plugged? To allow you to take advantage of the higher compression ratio? I suppose you still have the limitations of pump gas though, especially here in CA.


I use 100 octane 76 pump gas and would be OK with using higher octane race gas if needed, since my car is relegated to track duty now. For any street-driven car that is certainly a consideration though. Even if you have good access to race gas, you're talking $7-8+ / gallon and that hurts...
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sixnotfour
post Aug 4 2011, 01:51 AM
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9.8 you,ll need twin plug, just curious on the cam,
It will run sweet with twin plug. You have all the bells and whistles for sure.
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AZ914
post Aug 4 2011, 08:01 AM
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(IMG:style_emoticons/default/drooley.gif) Looks great, Andy!
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J P Stein
post Aug 4 2011, 08:54 AM
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QUOTE(Socalandy @ Aug 3 2011, 07:57 PM) *

thanks, I need to ask my buddy again on the re-grind of the cams. 9.8:1 + twin plug. why do you say its not warranted? you wont hurt my feelings but I'd like to hear the Six Guru's take on the subject



Mahle computes compression without taking into account the required .04 deck height.....thus the actual compression is closer to 9.3:1.(or less). The twin plug, shuffle pins, half mooning the cyls & boat tailing he block add little or nothing to the output of the engine....what, no boat tailed crank?...my money would go elsewhere......but all that makes a nice base for an 8000 rpm race motor.

Those pistons kill anything approaching a cam that scavenges well......top end down the tubes wasting those big ports. IMO, lotta bells but not many whistles. Don't forget, ...."you won't hurt my feelings". (IMG:style_emoticons/default/biggrin.gif)

Something like these in 95mm will solve your shortcomings.


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brant
post Aug 4 2011, 09:26 AM
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really pretty Andy!
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Socalandy
post Aug 4 2011, 11:13 AM
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the case was decked as well and like I thought the cams will be a re-grind to early E. Remember, I'm running carbs. Where do I get the Carb. spacers that reduce heat transfer from the heads?

Twin plug also solves cross burn delay across the cyl. and allows some Adv. timming in addition to helping with possible misfire "SIBT". I'll still be able to run pump gas and its a street car not track and it will still go down the road plenty fast. No. I wont race for pinks!! (IMG:style_emoticons/default/laugh.gif) the Dyno will show what the results are
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Eric_Shea
post Aug 4 2011, 10:27 PM
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Jeff's building a similar engine for me and I think I've decided on Mod-S cams from Elgin. After talking with Dug I think I'd like to keep my intakes at 36mm though. I had 40's on my engine and, while it was fun when it was "RIP'n" it hardly had enough low end torque to get out of it's own way.

If it is a street car as you say... watch your ports.
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brant
post Aug 4 2011, 10:34 PM
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QUOTE(Eric_Shea @ Aug 4 2011, 10:27 PM) *

Jeff's building a similar engine for me and I think I've decided on Mod-S cams from Elgin. After talking with Dug I think I'd like to keep my intakes at 36mm though. I had 40's on my engine and, while it was fun when it was "RIP'n" it hardly had enough low end torque to get out of it's own way.

If it is a street car as you say... watch your ports.



Eric, are you also going to 3.0?
you need not worry about torque
once you jump above your 2.5, you'll find tons of torque.

I'm loving my twin plug
but with the tiny displacement it is more important than with these big motors.
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Eric_Shea
post Aug 5 2011, 05:58 PM
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3.0 is going in the 911. It will be a MFI motor. S-Cams and MFI and... that's it. 36mm intakes on that as well.

2.5 is for the 914
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Socalandy
post Aug 16 2011, 06:22 PM
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assembly started, sorry for the crap cell pictures


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Socalandy
post Aug 16 2011, 06:24 PM
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(IMG:style_emoticons/default/shades.gif)


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Socalandy
post Aug 16 2011, 06:25 PM
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more tomorrow with the Nikon camera (IMG:style_emoticons/default/biggrin.gif)


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Socalandy
post Nov 16 2011, 09:01 PM
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Well after a rough few months of work, fathers trust I'm caught up and thank you Ron for helping get Joe's engine out. Sorry for the delay Joe!!!

The car is back from media blasting and I know i have alot of work ahead of me but it's better than I thought it would be!!!! I have all the skins needed and of course the flares so were off and running and hope to supply a steady stream of progress photos.



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Socalandy
post Nov 16 2011, 09:04 PM
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time work some (IMG:style_emoticons/default/welder.gif)


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Socalandy
post Nov 16 2011, 09:06 PM
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