New engne build. Let me know what you think...
#41
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Man going on price can be hard but keep checking the classifieds, when i started mine I found my Forged scat I beam rods NIB and Mahle Forged pistons NIB from a guy who changed his mind. Got $1000 In new parts for $600 shipped
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I've seen graphs for up to 429rwhp out of ported heads and the CC306. Although it's not the norm, the wide split of the CC306 may benefit it some on nitrous, but I'd probably go with a different grind unless it's something you already have.
Ask T/A LT1 how he liked that CC306 with nitrous, he cracked off low 11's motor and 9's with nitrous He should be able to give you some "actually used it" advice vs interweb advice.
-Dustin-
Ask T/A LT1 how he liked that CC306 with nitrous, he cracked off low 11's motor and 9's with nitrous He should be able to give you some "actually used it" advice vs interweb advice.
-Dustin-
#47
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The way the intake flow peaks at a low lift and plummets suggests to me the QUALITY of airflow is lacking and the air is going turbulent. The exhaust numbers are obviously with a pipe. You realize to PROPERLY put 2.02 valves in an LT1 head you need new seats. That adds up to more money and in the end no more performance. Matter of fact the best ported heads based on results use 2.00 valves that fit a stock seat.
You continue to bench race without regard for what actually works.
I wish you luck but keep going this way and you are going to spend a lot of money and not get the result you want.
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The way the intake flow peaks at a low lift and plummets suggests to me the QUALITY of airflow is lacking and the air is going turbulent. The exhaust numbers are obviously with a pipe. You realize to PROPERLY put 2.02 valves in an LT1 head you need new seats. That adds up to more money and in the end no more performance. Matter of fact the best ported heads based on results use 2.00 valves that fit a stock seat.
You continue to bench race without regard for what actually works.
I wish you luck but keep going this way and you are going to spend a lot of money and not get the result you want.
You continue to bench race without regard for what actually works.
I wish you luck but keep going this way and you are going to spend a lot of money and not get the result you want.
"Combustion chamber modifications include - Unshrouding of intake and exhaust valves, blending the chamber surface into the entry angle of the valve seat and combustion chamber reshaping as necessary to promote more efficient combustion & flame travel. Chamber volume can be tailored to to achieve your desired compression ratio. Weather you are building a low compression forced induction motor or a high compression race engine, we can help.
Valve Job - Our precision multi-angle valve jobs blend the valve pocket into the combustion chamber. Valve seat widths and angle are set to individual application requirements.
Port modifications include - Full length intake & exhaust port modifications to achieve the ultimate in air flow at the minimum port volume to promote excellent midrange torque & drivability while still providing the necessary high RPM horsepower.
With additional concentration on mid-lift flow values, you are ensured a cylinder head that will produce a broad power curve. Special porting for blower applications is also available to enhance flow characteristics on applications which utilize positive pressure in the intake port.
Do not be fooled by the competition claiming big flow numbers. No one races flow benches!!! The above items are just as important to power production as peak flow numbers."
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#52
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kjhkjhoioij;lkjlkj;l
Got the heads in today. everything looks great. I cleaned the heads up, and took some pics. they are going to the machine shop tomorrow to get the deck checked and the chambers cc'd. they are gonna clean them up too. I cc'd the intake runners and got 200 cc. so give or take a lil. even though i measured conservatively. Also the heads have been stamped with a JR. CNC ported. 2.00 and 1.56 valves that as you can tell from the pics have been un shrouded.
Track Marks
Track Marks
Last edited by green96ta; 01-24-2011 at 09:44 PM.
#55
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i had full bolt ons including ewp and 52mm tb. crane springs cc503 with stock heads. 2500 stall, 150 tnt wet kit. 373 rear. drag radials. madz tune.
suspension i had rear adjustable shocks lca's and relo brackets.
thats the gist of the set up i was running.
suspension i had rear adjustable shocks lca's and relo brackets.
thats the gist of the set up i was running.
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depends on weather. i ran that in 95 degree weather and very high humidity. if you look at the da you will see what im talking about. in good weather it would have ran 12.3-12.4, and you also have to take into account the tiny *** stall i had. with a 3600 stall and good weather might have netted a 12.0 or maybe an 11.9999999999 run. lol and i see your et was 13.22- with a 2.11 60' you can throw that mph out the window-a bad 60' makes for an inaccurate mph.
#59
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Not quite sure about how "inaccurate" it is my car ran that MPH so thats is quite accurate
but mine was on stock stall and wasn't "Full Bolt ons" lol glad to see your changing cams though the CC503 seems to be quite the "Sounds good" doesn't do to well at the track kind of cam from what I've read but people bash the 306 as well and good luck on you build I'm build a 355 and looking for 10s with H/C/I on some N20
but mine was on stock stall and wasn't "Full Bolt ons" lol glad to see your changing cams though the CC503 seems to be quite the "Sounds good" doesn't do to well at the track kind of cam from what I've read but people bash the 306 as well and good luck on you build I'm build a 355 and looking for 10s with H/C/I on some N20
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Not quite sure about how "inaccurate" it is my car ran that MPH so thats is quite accurate
but mine was on stock stall and wasn't "Full Bolt ons" lol glad to see your changing cams though the CC503 seems to be quite the "Sounds good" doesn't do to well at the track kind of cam from what I've read but people bash the 306 as well and good luck on you build I'm build a 355 and looking for 10s with H/C/I on some N20
but mine was on stock stall and wasn't "Full Bolt ons" lol glad to see your changing cams though the CC503 seems to be quite the "Sounds good" doesn't do to well at the track kind of cam from what I've read but people bash the 306 as well and good luck on you build I'm build a 355 and looking for 10s with H/C/I on some N20