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Re: Stock stroke 360 on the dyno [Re: RAMM] #949277 03/13/11 01:28 PM 03/13/11 01:28 PM
Joined: Jan 2003 Posts: 5,486 SoCal Brian Hafliger master
Brian Hafliger master Joined: Jan 2003 Posts: 5,486 SoCal	Quote: Quote: I just did a similar 360 with the 268 cam and 9.7:1 and it made 380HP. More cam and carb really make a difference but some guys want a "good" idle. I wish I had some snow laying around!! LOL..that was classic. Did you learn that from the EMC? Are you going this year? I still haven't ran our pig with different heads...been swamped the last 7 months. Yeah this is pretty much one of the only times I like having snow on the ground. No I didn't learn that from the EMC as I am always testing in September. I learned that in Grade 8 science-about volumes and densities and their relationships to temperature. Yes I did apply for the EMC again-I would really like to give it one more shot. Probably a big block again--I really like the B engine-hint hint.. You never did get back to me with more details on how your testing went J.Rob I'm not finished testing! I've been so busy I just don't have any time to try my W2's. I'm pretty sure I know what I did wrong just need to try my W2's to see for myself. That part about learing that at the EMC was a joke....hope you got that!! Brian Hafliger

Re: Stock stroke 360 on the dyno [Re: Brian Hafliger] #949278 03/13/11 01:54 PM 03/13/11 01:54 PM
Joined: Aug 2008 Posts: 941 Texas, USA ChrgrCuda super stock
ChrgrCuda super stock Joined: Aug 2008 Posts: 941 Texas, USA	Do you mind me asking what size jets you had in it? 68 Cuda Notchback [Email]10.86@120[/Email] 69 Charger R/T 440/505 2009 Challenger SRT8

Re: Stock stroke 360 on the dyno [Re: gch] #949279 03/13/11 02:12 PM 03/13/11 02:12 PM
Joined: Feb 2006 Posts: 1,051 The Great White North RAMM OP super stock
RAMM OP super stock Joined: Feb 2006 Posts: 1,051 The Great White North	Quote: Dyno sheet says 830 holley and text says 750.Which one?Is it just me or is the a/f ratio on the first run pig rich down low and still rich up top? Nice numbers.Gives me ideas for the rebuilt 360 I just bought for peanuts with a 727. I forgot to change the specifications from the previous dyno session. I did try the 830 and it was better but not by much. As for the jetting I pulled 3 jet sizes out after that first test which made the fuel curve ideal from the bottom to the top. J.Rob 2009 PHR\EMC Competitor 2010 PHR\EMC Competitor 2011 PHR\EMC Competitor 2012 PHR\EMC Competitor 2013 PHR\EMC Competitor 2014 HotRod/EMC Competitor 2015 HotRod/EMC NoShow 2016 HotRod/EMC 3rd place SPEC Bigblock 2018 HotRod/EMC 7th place G3

Re: Stock stroke 360 on the dyno [Re: RAMM] #949280 03/13/11 02:15 PM 03/13/11 02:15 PM
Joined: Sep 2004 Posts: 6,906 IL, Aurora A ademon master
ademon master A Joined: Sep 2004 Posts: 6,906 IL, Aurora	so that wilson 4-hole is the S**T? or was it the cold intake? is that a tapered 4 -hole?

Re: Stock stroke 360 on the dyno [Re: ademon] #949281 03/13/11 02:25 PM 03/13/11 02:25 PM
Joined: Feb 2006 Posts: 1,051 The Great White North RAMM OP super stock
RAMM OP super stock Joined: Feb 2006 Posts: 1,051 The Great White North	The Wilson 4 hole is worth about 14 hp on this combo and the cold intake was worth another 13 hp on that particular test. Realistically this engine was producing a solid 425 hp with 430 lb/ft every test. Icing down the intake was purely for getting some big numbers to print out and have some fun with the 383 Chev guys at the parking lot this summer. 460 ft/lbs from a basic stock stroke 360 does not happen. J.Rob 2009 PHR\EMC Competitor 2010 PHR\EMC Competitor 2011 PHR\EMC Competitor 2012 PHR\EMC Competitor 2013 PHR\EMC Competitor 2014 HotRod/EMC Competitor 2015 HotRod/EMC NoShow 2016 HotRod/EMC 3rd place SPEC Bigblock 2018 HotRod/EMC 7th place G3

Re: Stock stroke 360 on the dyno [Re: ChrgrCuda] #949282 03/13/11 02:27 PM 03/13/11 02:27 PM
Joined: Feb 2006 Posts: 1,051 The Great White North RAMM OP super stock
RAMM OP super stock Joined: Feb 2006 Posts: 1,051 The Great White North	Quote: Do you mind me asking what size jets you had in it? I can answer that on Monday. I actually don't remember. J.Rob 2009 PHR\EMC Competitor 2010 PHR\EMC Competitor 2011 PHR\EMC Competitor 2012 PHR\EMC Competitor 2013 PHR\EMC Competitor 2014 HotRod/EMC Competitor 2015 HotRod/EMC NoShow 2016 HotRod/EMC 3rd place SPEC Bigblock 2018 HotRod/EMC 7th place G3

Re: Stock stroke 360 on the dyno [Re: RAMM] #949283 03/13/11 03:28 PM 03/13/11 03:28 PM
Joined: Aug 2003 Posts: 43,207 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,207 Bend,OR USA	Looking at the first and second dyno sheets it looks like you lean it down, which it seems the motor really liked What happened to the AFR readings on the 2nd sheet Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: Stock stroke 360 on the dyno [Re: Cab_Burge] #949284 03/13/11 10:36 PM 03/13/11 10:36 PM
Joined: Feb 2006 Posts: 1,051 The Great White North RAMM OP super stock
RAMM OP super stock Joined: Feb 2006 Posts: 1,051 The Great White North	Quote: Looking at the first and second dyno sheets it looks like you lean it down, which it seems the motor really liked What happened to the AFR readings on the 2nd sheet I knew what the A/F ratio was from the previous tests and left the air turbine off for the last BONZAI pull. I do wish I had that data though-thanks for reminding me. J.Rob 2009 PHR\EMC Competitor 2010 PHR\EMC Competitor 2011 PHR\EMC Competitor 2012 PHR\EMC Competitor 2013 PHR\EMC Competitor 2014 HotRod/EMC Competitor 2015 HotRod/EMC NoShow 2016 HotRod/EMC 3rd place SPEC Bigblock 2018 HotRod/EMC 7th place G3

Re: Stock stroke 360 on the dyno [Re: RAMM] #949285 03/13/11 10:54 PM 03/13/11 10:54 PM
Joined: Jan 2003 Posts: 1,784 PA W5DART66 top fuel
W5DART66 top fuel Joined: Jan 2003 Posts: 1,784 PA	Good job on this engine BUT A BIG BLOCK for EM..... what class?

Re: Stock stroke 360 on the dyno [Re: W5DART66] #949286 03/13/11 11:01 PM 03/13/11 11:01 PM
Joined: Feb 2006 Posts: 1,051 The Great White North RAMM OP super stock
RAMM OP super stock Joined: Feb 2006 Posts: 1,051 The Great White North	Street of course--I'm not that smart but I'm smart enough to know when I'm way outgunned. I'm hoping to crack the top ten in a field of 20 presuming I've been accepted. Will you be there Brett? J.Rob 2009 PHR\EMC Competitor 2010 PHR\EMC Competitor 2011 PHR\EMC Competitor 2012 PHR\EMC Competitor 2013 PHR\EMC Competitor 2014 HotRod/EMC Competitor 2015 HotRod/EMC NoShow 2016 HotRod/EMC 3rd place SPEC Bigblock 2018 HotRod/EMC 7th place G3

Re: Stock stroke 360 on the dyno [Re: RAMM] #949287 03/13/11 11:04 PM 03/13/11 11:04 PM
Joined: Jan 2003 Posts: 1,784 PA W5DART66 top fuel
W5DART66 top fuel Joined: Jan 2003 Posts: 1,784 PA	If I get picked I guess we will know monday???? I will do W8 engine for XTREME SRTEET .

Re: Stock stroke 360 on the dyno [Re: RAMM] #949288 03/13/11 11:20 PM 03/13/11 11:20 PM
Joined: Dec 2008 Posts: 415 Peru cbarracuda mopar
cbarracuda mopar Joined: Dec 2008 Posts: 415 Peru	Good engine, good numbers, 500 hp in a 360 pump gas. There is something that caught my attention: a 1978 block, I guess a factory block, cut 0.40 when every book recommends 0.20 maximun 0.30. good power. I have a 1971 360 and plan to cut this 0.80. Congratulations on your results!

Re: Stock stroke 360 on the dyno [Re: cbarracuda] #949289 03/14/11 12:43 AM 03/14/11 12:43 AM
Joined: Jan 2003 Posts: 9,670 Lima, Peru domingo EL Master
domingo EL Master Joined: Jan 2003 Posts: 9,670 Lima, Peru	Quote: Good engine, good numbers, 500 hp in a 360 pump gas. There is something that caught my attention: a 1978 block, I guess a factory block, cut 0.40 when every book recommends 0.20 maximun 0.30. good power. I have a 1971 360 and plan to cut this 0.80. Congratulations on your results! They have sonic testers up there so they know how much is safe to bore out b4 the walls get too thin. Which year is it dosnt really mean a thing. The earlier castings being thicker are just myths. I think your 71 360 is the same casting as a 340 block...I have heard it was like that with the first years of the 360 when production overlapped with the 340...that would be the 71-73 360 castings. Still Id be afraid to cut that much without having a sonic tester. You might end up with cylinders with bores as thick as a coke can and ruin a good 360 block. Last edited by domingo; 03/14/11 12:46 AM.

Re: Stock stroke 360 on the dyno [Re: domingo] #949290 03/14/11 01:08 AM 03/14/11 01:08 AM
Joined: Dec 2008 Posts: 415 Peru cbarracuda mopar
cbarracuda mopar Joined: Dec 2008 Posts: 415 Peru	Quote: Quote: Good engine, good numbers, 500 hp in a 360 pump gas. There is something that caught my attention: a 1978 block, I guess a factory block, cut 0.40 when every book recommends 0.20 maximun 0.30. good power. I have a 1971 360 and plan to cut this 0.80. Congratulations on your results! They have sonic testers up there so they know how much is safe to bore out b4 the walls get too thin. Which year is it dosnt really mean a thing. The earlier castings being thicker are just myths. I think your 71 360 is the same casting as a 340 block...I have heard it was like that with the first years of the 360 when production overlapped with the 340...that would be the 71-73 360 castings. Still Id be afraid to cut that much without having a sonic tester. You might end up with cylinders with bores as thick as a coke can and ruin a good 360 block. you are right about 1971 to 1973 360 factory blocks, same casting as a 340. i had the two blocks together, a 1990 and 1971 360 and can tell the difference in cylinder wall. of course a sonic test will tell you if the block is good for more like a 4.100

Re: Stock stroke 360 on the dyno [Re: cbarracuda] #949291 03/14/11 02:00 AM 03/14/11 02:00 AM
Joined: Jan 2003 Posts: 9,670 Lima, Peru domingo EL Master
domingo EL Master Joined: Jan 2003 Posts: 9,670 Lima, Peru	if you are gonna cut it 0,080" it would be like cutting a 340 0,040" over. Thats close to sonic testing territory already, specially with a block that has seen service life and has the water jackets a bit corroded. Id just cut it to std 340 bore size at 4,04" if it will clean uo at that. Why push it if you dont have a sonic tester? Id rather have thick walls than 0,040" more bore. Its not like you are gonna shroud the valves!

Re: Stock stroke 360 on the dyno [Re: domingo] #949292 03/14/11 02:12 AM 03/14/11 02:12 AM
Joined: Dec 2008 Posts: 415 Peru cbarracuda mopar
cbarracuda mopar Joined: Dec 2008 Posts: 415 Peru	Domingo This is not a corroded block like the ones we see every day. I pulled this block myself out of a mobile home with 48000 miles, no rust at all and payed for the shipping to Peru

Re: Stock stroke 360 on the dyno [Re: domingo] #949293 03/14/11 03:53 AM 03/14/11 03:53 AM
Joined: Feb 2006 Posts: 1,949 land of 10,000______'s B BDS871Cuda top fuel
BDS871Cuda top fuel B Joined: Feb 2006 Posts: 1,949 land of 10,000______'s	Quote: if you are gonna cut it 0,080" it would be like cutting a 340 0,040" over. Thats close to sonic testing territory already, specially with a block that has seen service life and has the water jackets a bit corroded. Id just cut it to std 340 bore size at 4,04" if it will clean uo at that. Why push it if you dont have a sonic tester? Id rather have thick walls than 0,040" more bore. Its not like you are gonna shroud the valves! I agree straight thick cylinders are far better. Most pro builders don't put to much into bore size in a stock block. Most agree thicker cylinder walls are much better. 372 CI or 365 CI not much difference in HP. But!!! cylinder flex will lose HP. Snap your neck, mega G-force launch, is all I want!

Re: Stock stroke 360 on the dyno [Re: BDS871Cuda] #949294 03/14/11 11:27 AM 03/14/11 11:27 AM
Joined: Jan 2003 Posts: 9,670 Lima, Peru domingo EL Master
domingo EL Master Joined: Jan 2003 Posts: 9,670 Lima, Peru	Quote: Quote: if you are gonna cut it 0,080" it would be like cutting a 340 0,040" over. Thats close to sonic testing territory already, specially with a block that has seen service life and has the water jackets a bit corroded. Id just cut it to std 340 bore size at 4,04" if it will clean uo at that. Why push it if you dont have a sonic tester? Id rather have thick walls than 0,040" more bore. Its not like you are gonna shroud the valves! I agree straight thick cylinders are far better. Most pro builders don't put to much into bore size in a stock block. Most agree thicker cylinder walls are much better. 372 CI or 365 CI not much difference in HP. But!!! cylinder flex will lose HP.

Re: Stock stroke 360 on the dyno [Re: domingo] #949295 03/14/11 12:19 PM 03/14/11 12:19 PM
Joined: Jan 2003 Posts: 9,876 Weddington, N.C. Streetwize master
Streetwize master Joined: Jan 2003 Posts: 9,876 Weddington, N.C.	I'm still scratching my head as to why I pulled out a perfectly good 341" (3.91" 318 factory roller block with an MP 3.55" 4340 stroke) to put in the 414, I'll bet this puppy made about 440hp (PLENTY!!) with a 236/240@.050 Hyd Roller and stock E-heads. I agree, never take the bores out any more than they need to, keeping the meat in the bores of a stock block is worth more power than a couple extra "ego" cubes. Last edited by Streetwize; 03/14/11 12:20 PM. WIZE World's Quickest Diahatsu Rocky (??) 414" Stroker Small block Mopar Powered. 10.84 @ 123...and gettin' quicker! https://www.youtube.com/watch?v=-mWzLma3YGI In Car: https://www.youtube.com/watch?v=PjXcf95e6v0

Re: Stock stroke 360 on the dyno [Re: Streetwize] #949296 03/14/11 12:35 PM 03/14/11 12:35 PM
Joined: Nov 2004 Posts: 354 K kielbasa enthusiast
kielbasa enthusiast K Joined: Nov 2004 Posts: 354	also agree overboring should be kept to a minimum, however what if a typical .030 cut isn't enough to put the bores back over the crank cl??? My 318 block was barely able to have the bores corrected with a .030 cut (withing a couple of thou), and same with my 360 block....fortunately i sonic checked wall thickness and core shift to know i could safely bore beforehand. i'm assuming the lesser of two evils is to have thicker bores a few thou out of location, yes?

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