200+ hp pump gas Gen II w/ no power adders and only OEM internal engine parts?

[Kirk]

No problem.  We all make mistakes, and I really do appreciate your input.

So you think two Gen II intakes would round out a nice mild combination like this?

BTW, how much additional compression can I get by pulling the base gasket too?  How much can you mill (or angle-mill) the head, and what will that get me? Obviously I'd like to avoid all the normal caveats (less than zero deck height, less than .040" squish, piston-to-valve conflicts, etc.).  And how much will pump gas tolerate?  I'm just spit-balling here, but I'm thinking that even with stock cams, a true 13:1 (if possible) is not out of line, and with the additional duration of the second intake cam, even more so.  What do you think?

[midnight black man]

No problem.  We all make mistakes, and I really do appreciate your input.

So you think two Gen II intakes would round out a nice mild combination like this?

BTW, how much additional compression can I get by pulling the base gasket too?  How much can you mill (or angle-mill) the head, and what will that get me? Obviously I'd like to avoid all the normal caveats (less than zero deck height, less than .040" squish, piston-to-valve conflicts, etc.).  And how much will pump gas tolerate?  I'm just spit-balling here, but I'm thinking that even with stock cams, a true 13:1 (if possible) is not out of line, and with the additional duration of the second intake cam, even more so.  What do you think?

mainly it has to do with your future intention for the engine...if you're gonna put piston,overbore it etc,milling the head is not the best thing to cope with...

so...taking out the base,will add approximately 0,2 so with the thin head gasket will take you at the ballpark of 12.7-12.8...i wouldn't do it if i were you...12.5 if more than fine...also keep the exhaust cam in...no need for the extra cost...apart from that .its something you can do any time in the future if you want something extra and you can do it with the motor on the frame...

anyway...your stuff,your decision...

[glenn71]

yeh dialling the exhaust cam in,in the frame
is not what i call a fun night out in the shed.

[Kirk]

I'm not bashful.  With my background, I have no aversion to dropping the engine.

As far as my future plans, as much as I'd like to go hog wild, the reality of it is that this is probably about as far as it'll ever go.

[midnight black man]

 

yeh dialling the exhaust cam in,in the frame
is not what i call a fun night out in the shed.

 

cmon'mate...don't scare people off...it's not that bad...once the cap is off i need about half an hour to dial it...

then kirk take another 0.3 mm out of the head and your 13 will be a reality...

[glenn71]

yep gen1 10.69:1 measured and gen 2 12.2:1 from memory.

[Kirk]

...take another 0.3 mm out of the head and your 13 will be a reality...

.3mm is about .012".  Is that with the OEM head gasket but no base gasket?

[midnight black man]

no base gasket+0.46mm head gasket...

[Kirk]

Sorry, which head gasket is that?  And that's a true 13:1, right? 

Any concerns with the stock starting system?

[midnight black man]

its the thin cometic...stock is 0.76mm

13sh...can never be exact...no two motors are ever exactly the same...

no problems at all with starting system...

[Kirk]

Appreciate you sharing your knowledge.

So how much compression with an OEM head gasket, no base gasket, and shave the head .012" (.3mm)?

I'm assuming that it would be enough compression to support the second intake cam? (trying not to go in circles with this). 

[midnight black man]

haha...but you are...told you before,even with 12.5 you're ok with those baby cams...

0.3mm off is about 0.3 up in cr...grossely ofcourse...

if i were you though i'd put a set of 13.5 wossners or whichever brand you prefer,keep the stock gasket which is by far the most reliable and be done with it...no shaving and all stock gaskets in...troublefree...

[Kirk]

Thanks.

Pump (R+M)/2 91 octane unleaded premium gas, right?

[midnight black man]

yeap...91 pump is fine...

[glenn71]

if your worried about remove and refitting the
pistons into the block,dont be,with the gen2 block with the window
cutouts you can fit the pistons in the block first,on the bench
and then fit the gudgeons to the middle 2 rods on the cases
then the outer 2,far easier.

[midnight black man]

i prefer slaves holding the block in place...wife-girlfriend-friend...

[glenn71]

lol.

[dodobird]

mill head .20  385 intake timed 108/110 so you mke power all the way to the limiter for the top in runs 200hp all day ong thru stock exhaust