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Chamber modifications
#11

(11-26-2023, 01:38 PM)turtle1hp Wrote:  Ray, Wasn't there supposed to be a follow up to this thread, that showed the exhaust modifications?  If it was ever posted, I must have missed it.

YES ~ The DIY Porting thread with Tim Ottinger was originally intended to include a "complete" writeup for the intake AND exhaust ports (plus possibly some chamber mods), and NO......you didn't "miss" the final portion. There was an "issue" with a missing photo or two in the intake installment that sorta put everything on hold, but "we" ultimately posted it up anyway. 

THEN, I never really "pressed" Tim to send the pics/instructions for the exhaust segment, plus he became too busy anyway. Soooo........I/we dropped the ball. I share part of the blame, along with a couple of others (let the reader use discernment). 

As it stands now.......(1) Tim is probably way too busy [a good thing] to bother with taking/sending more pics & telling others how to port heads for free, AND (2) This site has all but dried up [I'm one of the very few who continually monitor & respond to the few queries that are occasionally posted], in spite of Paul saying that he continues to get new member signups all the time. 

PLUS.......I ASSume that many former Lima aficionados have moved on to more plentiful/powerful DOHC platforms, AND because of the increasing rarity of Lima engines & associated parts, along with the diminishing number of aftermarket suppliers who still sell &/or develop parts for 'em! <sigh>
Placerville, California
(former)  '78 2.3T Courier w/blow-thru Autolite 2bbl carb ~ (current)  '87 2.3T Ranger w/PiMP’d EFI
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#12

SO RAY  i see that the ESSLINGER head has a lower CC  so the compression would be higher  and as for the flow with bigger valves and porting  you will get more power.   AIR IN AIR OUT.  but why not just flat tor pistons  with valve cut reflets .  i know it is not the some but you do get higher compression.       and on a side note  i have gone to a BBQ  at a machine shop that worked on old cars /truck  with flat heads we  put the heads in the BBQ  to preheat  and Weid the cracks .  on the heads i would do i would build up the chambers on the heads but i would use a tig welder and  cast bars for the filler then machine it out .   as  for the cool down before the machining we put them in a barrel of floor swipe to cool down . as i were to try a 2.3 head to lower the CCs  i would cut stripes  from a old 2.3 head to use as filler rod so i have like metals not easy  but can be done . you can use MUGGY rod but i like using the tig it is cleaner.               i had to weld some odd things some time  one good thing is were i work  2 days aweek is our welds are XRAYED   so i get them to EXRAY  my welds.
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#13

(11-27-2023, 02:59 AM)firewheel56 Wrote:  why not just [use] flat-top pistons with valve reliefs?  

IMHO, forged flat-top pistons (like the TRW versions that Ford used in the 1st-gen draw-thru turbo setups for '80 - '82) are definitely the way to go with methanol or E85, Landy. BUT........probably not with "today's" low-octane pump gasoline. <shrug>
Placerville, California
(former)  '78 2.3T Courier w/blow-thru Autolite 2bbl carb ~ (current)  '87 2.3T Ranger w/PiMP’d EFI
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