590HP W2 headed pump gas 408 on the dyno... - Moparts Forums

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Re: 590HP W2 headed pump gas 408 on the dyno... [Re: B3422W5] #1347197 12/07/12 09:46 PM 12/07/12 09:46 PM
Joined: Jan 2003 Posts: 5,486 SoCal Brian Hafliger OP master
Brian Hafliger OP master Joined: Jan 2003 Posts: 5,486 SoCal	I like tight lca's most times but everything is a compromise! A smaller cam on a tighter lca would make more lower rpm power I'm sure, but for street cars traction is limited on the STREET so actually a good race HP and TQ curve work well. At the track, sure more poop on the line would be nice, but I'll bet the engine spends most of it's time in the 5000-7000rpm range and with a 4" crank even if the 60ft. is a little soft it'll e.t. better this way than the other. Brian Hafliger

Re: 590HP W2 headed pump gas 408 on the dyno... [Re: Brian Hafliger] #1347198 12/07/12 10:37 PM 12/07/12 10:37 PM
Joined: Nov 2004 Posts: 3,518 pacific northwest S Stroker Scamp master
Stroker Scamp master S Joined: Nov 2004 Posts: 3,518 pacific northwest	what are your thoughts on the 1 7/8 TTI's say VS the 1 7/8 Hedmans that you also dyno with, are you gonna compare? great build BTW footbrake N/A SB 408 Scamp 10.10 @ 132 street/strip 73 Duster 340 street strip 12.79 @ 105

Re: 590HP W2 headed pump gas 408 on the dyno... [Re: Stroker Scamp] #1347199 12/07/12 11:03 PM 12/07/12 11:03 PM
A Anonymous Unregistered
Anonymous Unregistered A	That man knows what he is doing!!!--Nice build--amazing results! I love a unit that revs like a chainsaw!!!

Re: 590HP W2 headed pump gas 408 on the dyno... [Re: ] #1347200 12/08/12 01:32 AM 12/08/12 01:32 AM
Joined: Aug 2003 Posts: 3,245 Between a rock & a hard place C cudadoug master
cudadoug master C Joined: Aug 2003 Posts: 3,245 Between a rock & a hard place	N I C E!! sounds sweeeet! Please...drop in the Duster and get a timeslip. I'd bet easy low-mid 10's with a very tame (streetable) converter...

Re: 590HP W2 headed pump gas 408 on the dyno... [Re: cudadoug] #1347201 12/08/12 03:16 AM 12/08/12 03:16 AM
Joined: Nov 2004 Posts: 8,094 Sunnyvale, CA Jeepmon master
Jeepmon master Joined: Nov 2004 Posts: 8,094 Sunnyvale, CA	Very nice Brian... thats a perky little motor.. job well done!! 73 Duster 360 stroker http://www.cardomain.com/ride/2594657

Re: 590HP W2 headed pump gas 408 on the dyno... [Re: Stroker Scamp] #1347202 12/08/12 01:16 PM 12/08/12 01:16 PM
Joined: Jan 2003 Posts: 5,486 SoCal Brian Hafliger OP master
Brian Hafliger OP master Joined: Jan 2003 Posts: 5,486 SoCal	Quote: what are your thoughts on the 1 7/8 TTI's say VS the 1 7/8 Hedmans that you also dyno with, are you gonna compare? great build BTW All bets are off with a full exhaust system. Yesterday I finished testing that engine with Daryl's TTI 1 5/8 step headers and mufflers and it made 580HP! That's only 10HP down from the larger open headers and larger carb!! So I say for the little bit of power difference, buy the nicer better product (TTI) unless every HP is important and then I'd just build custom headers at that point. Thanks guys for all the nice feedback. Really, it's making the power is should so nothing special I guess but with all the "you must pay for advertising or you cannot post your business info" I thought some dyno info on a little W2 headed sb stroker would be fun since we don't see many posts like this anymore....Such a shame!! Brian Hafliger

Re: 590HP W2 headed pump gas 408 on the dyno... [Re: Brian Hafliger] #1347203 12/08/12 01:23 PM 12/08/12 01:23 PM
Joined: Apr 2009 Posts: 3,422 Toronto M mshred master
mshred master M Joined: Apr 2009 Posts: 3,422 Toronto	Brian, just out of curiosity here, how much more power do you think a solid roller was worth on this combo compared to say a similar solid flat tappet cam?

Re: 590HP W2 headed pump gas 408 on the dyno... [Re: mshred] #1347204 12/08/12 04:03 PM 12/08/12 04:03 PM
Joined: Jan 2003 Posts: 17,924 Akron, Ohio ProSport I Live Here
ProSport I Live Here Joined: Jan 2003 Posts: 17,924 Akron, Ohio	Most dyno videos are boring but I really enjoyed this one, engine sounds great! That will be a blast in a fairly light weight car. 1970 Challenger, all aluminum 528 Hemi, HDK suspension, Tremec 5 speed manual

Re: 590HP W2 headed pump gas 408 on the dyno... [Re: ProSport] #1347205 12/08/12 08:03 PM 12/08/12 08:03 PM
Joined: Jan 2003 Posts: 5,486 SoCal Brian Hafliger OP master
Brian Hafliger OP master Joined: Jan 2003 Posts: 5,486 SoCal	Thanks Pro...Matt I would guess around 25-30HP maybe...as smooth as these lobes are, not sure it would be a huge amount. Remember, the heads were only mildly ported so there's some power left on the table there. Brian Hafliger

Re: 590HP W2 headed pump gas 408 on the dyno... [Re: Brian Hafliger] #1347206 12/08/12 10:38 PM 12/08/12 10:38 PM
Joined: Apr 2009 Posts: 3,422 Toronto M mshred master
mshred master M Joined: Apr 2009 Posts: 3,422 Toronto	Quote: Thanks Pro...Matt I would guess around 25-30HP maybe...as smooth as these lobes are, not sure it would be a huge amount. Remember, the heads were only mildly ported so there's some power left on the table there. Cool, I was just wondering if the solid roller helped make substantially more power if it was to be up against a similar flat tappet. Motor sounds BAD when it is revving

Re: 590HP W2 headed pump gas 408 on the dyno... [Re: Brian Hafliger] #1347207 12/09/12 02:43 AM 12/09/12 02:43 AM
Joined: Jan 2003 Posts: 999 British Columbia T toddd super stock
toddd super stock T Joined: Jan 2003 Posts: 999 British Columbia	Nice stuff Brian.

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