CZLN6":34krf8e4 said:
This is certainly a thought provoking quest. I guess I'm wondering why a 200 HP goal? And why for a street, daily driver, who also wants economy?
well it it the most anyone has gotten NA using the same cam I got!! (probably the same botom end too)
daily driver because it's still my first and only car!!!
who doesn't want economy??
CZLN6":34krf8e4 said:
Stepping up to a direct mounted two barrel
If i did that, then I'll MIGHT get 150, probably 140hp, why not got to the full potential of the cam? more air! more power!
yeah I have thought of that, but then I'll still be in the stock small block bent territory, I wanna go past the stock small block but I don't wanna go extremely complicated. the direct mount would be great, no doubt but not to the max this block can put out.
okay lets re-cap again... this time I'll compare with dyno2 on classicinlines.com
mine................................dyno2
200 block..........................SAME
CI header..........................SAME
DUI..................................SAME
264/274 110* cam................264-110 (I thought I read a 274 somewhere for exhaust but can't find it... oh well)
double roller timing chain......unknown (I advanced my cam 4*, IDK about mraley's?) (
EDIT: found out the engine shop had it @ 11.5* advance)
stock 1.5 rockers.................1.65 fill roller rockers (I will after I dyno with the alum head)
wsa111":34krf8e4 said:
As David said, to get 200 HP out of a log head you will need larger valves available from Mike at Classic Inlines
I do have larger valves, 1.75int/1.5exh... these are the biggest I can go on the log head
wsa111":34krf8e4 said:
The bowls and ports need to be ported to the max
got it!
wsa111":34krf8e4 said:
You will need flat top pistons to get the static compression to at least 10.5.
dyno2a ancheived 211hp with 9.5:1 CR, so I don't think I "need" to go higher or near 10.5:1
wsa111":34krf8e4 said:
You will also need a set of dual out headers going through non restrictive mufflers to 2"-21/4" tail pipes.
done, dual 2inch all the way back, no x-pipe or h-pipe
wsa111":34krf8e4 said:
Will need roller rocker arms 1.6 or better yet the full roller 1.65 yella terra's.
as I understand it, it gave 2hp peak and 10hp average, I think I want to try the 1.5 stock first, I bet they can handle 200hp, but I'm in absolute agreement that If i go this far, I might as well get some nice rockers too.
wsa111":34krf8e4 said:
Valve lift will need to be over .500". duration with an auto trans 260's intake & at least 280 on the exhaust.
dyno2a shows that he had a valve lift of .495 with his 1.65 roller rockers, I think it's safe to try without the higher lift first, then go for it, peice by piece, trial and error
wsa111":34krf8e4 said:
Another area would be the ignition & proper advance calibration.
I've been thinking about this too, I have the same DUI ignition, but don't know the calibration of dyno2, currently I have 12* static and 24* more @ 3000rpm, I too think it can open more sooner, maybe the full 24* @ 2500rpm, I'm willing to try.
CZLN6":34krf8e4 said:
And all in an incredibly built bottom end, with lightening, balancing coating and luck.
is ARP rod bolts good enough for strength?
when I had the block built (6 months ago) I ordered it balanced, I think they did a great job.
with the double roller timing chain to ice the topping, I think my bottom end is up for the task.
wsa111":34krf8e4 said:
The extra 20 HP would make the engine not very friendly as a daily driver.
I guess you are implying the total 200hp, well I have gone trhough it, and it all seems "friendly" too me.... maybe not so much on the 4bbl option but a daily with 9.5CR t5 manual, same cam that i have (which I think is perfect for a good daily driver) nothing sounds "TOO" extreme.. infact kinda sounds 'mild' except for the price tag...
chad":34krf8e4 said:
modify the oil/water ports
i have not thought of that, that 200hp should be well protected with good oil flow, and proper water cooling. maybe a highflow oil pump can work but I've heard they don't make any for the 200... maybe I can modify one or have an extrernal electric oil pump... but then agian the oil pump is in direct relation to the rpm's of the engine, so maybe more oil resevior? that way it has more oil... think mike has a solution for that...
CZLN6":34krf8e4 said:
you will need to think about a higher rpm peak than any one barrel carb is capable of
abosutly agree, a 1bbl can only flow so much cfm, and even then the efficeny of the head directly relates to the max that the carb can support. a 4bbl of 480cfm, or maybe the edlebrock 600cfm (cause it's easier to find parts for) could give adaquit cfm for the higher rpm ranges.
granted I'm looking for "peak 200+ rwhp" not average 200hp, if I wanted average then I might as well go find a bent somewhere...
Am I not thinking correctly or missing something? I do have the "same" bottom end as a previously tested 200ci with 211rwhp, just need to swap the top.
all for more power!
WSA111, do you have your cam straight up? or is it advanced any?
Thanks guys, sorry for the longwinded response...