Dyno of a 254whp/176lb-ft
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From: Fredericksburg, VA, USA
Dyno of a 254whp/176lb-ft
Last night we did some header testing against a 1 piece SMSP stepped header and a new SMSP prototype soft stepped 1 piece header that I finished yesterday.
This a B Series sleeved and stroked engine built by Jim Justice with prototype cams and a ported S2 IM. If the owner of the engine wants to provide any more info then that's up to him.
A BIG
to Jim Justice Race Engines
Blue line is the new prototype header.
This a B Series sleeved and stroked engine built by Jim Justice with prototype cams and a ported S2 IM. If the owner of the engine wants to provide any more info then that's up to him.
A BIG
to Jim Justice Race EnginesBlue line is the new prototype header.
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From: Fredericksburg, VA, USA
Re: Dyno of a 254whp/176lb-ft (b16crxkid)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b16crxkid »</TD></TR><TR><TD CLASS="quote">pics </TD></TR></TABLE>
The engine looks like any regular B series.
</TD></TR></TABLE>The engine looks like any regular B series.
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From: EMAIL ME at Chase@ChaseBaysOnline.com
Re: Dyno of a 254whp/176lb-ft (SMSP)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SMSP »</TD></TR><TR><TD CLASS="quote">
The engine looks like any regular B series.</TD></TR></TABLE>
i just wanted to see the header tho
The engine looks like any regular B series.</TD></TR></TABLE>
i just wanted to see the header tho
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From: Woodbridge, NJ, Middlesex
Re: Dyno of a 254whp/176lb-ft (SMSP)
hey dave, what difference in the header cause a gain throughtout the entire powerband ? i'm curious since I would think one header design over another would gain lets say on the top part of the powerband but lose in the lower or mid part, or vice versa ...
wouldn't a header hav eot be some sort of adjustable length running that changes as RPMs climb during the pass, in order to show gains through out the entire powerband ?
Like to know how header designs work, and what variables in the header causes increases in power.
Greg
wouldn't a header hav eot be some sort of adjustable length running that changes as RPMs climb during the pass, in order to show gains through out the entire powerband ?
Like to know how header designs work, and what variables in the header causes increases in power.
Greg
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From: the backwoods, usa
Re: Dyno of a 254whp/176lb-ft (Black R)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Black R »</TD></TR><TR><TD CLASS="quote">.....which graph is which header?</TD></TR></TABLE>
Blue line is the new prototype header.
Blue line is the new prototype header.
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From: Nashville, TN, USA
Re: Dyno of a 254whp/176lb-ft (CHEETAH)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CHEETAH »</TD></TR><TR><TD CLASS="quote">hey dave, what difference in the header cause a gain throughtout the entire powerband ? i'm curious since I would think one header design over another would gain lets say on the top part of the powerband but lose in the lower or mid part, or vice versa ...
wouldn't a header hav eot be some sort of adjustable length running that changes as RPMs climb during the pass, in order to show gains through out the entire powerband ?
Like to know how header designs work, and what variables in the header causes increases in power.
Greg</TD></TR></TABLE>
I Would like to know also
wouldn't a header hav eot be some sort of adjustable length running that changes as RPMs climb during the pass, in order to show gains through out the entire powerband ?
Like to know how header designs work, and what variables in the header causes increases in power.
Greg</TD></TR></TABLE>
I Would like to know also
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Joined: May 2002
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From: Atl. Beach, fl, duval
Re: Dyno of a 254whp/176lb-ft (JdM DA InTeGrA)
Dave nice job on header, I would not post pics until you get some orders to cover R&D. even I could copy them. LOL I think they have H-22 written all over them, looking at the bottom TQ. If those are the cams I sent Jim they are Skunk Pro3+. Looks like they want to rev a little higher and would still keep up the power.
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From: albany, ny, usa
Re: Dyno of a 254whp/176lb-ft (DonF)
Awesome numbers on a well built motor, dave will you be posting any pics of this new header? don, i hope your making a little extra money pimping out thise cams 
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From: Atl. Beach, fl, duval
Re: Dyno of a 254whp/176lb-ft (PURPLETERROR aka BIGMATT)
Pimping would mean someone was getting "screwed" and I happen to like Jim and Jason. Now if I sold them some other cams I have here........
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From: Frederick, MD, usa
Re: Dyno of a 254whp/176lb-ft (SMSP)
David, thanks for posting. SMSP headers .
The "owner" is very pleased, as am I. It will be next week before the "owner" is able to go over all our info and post about the build and the track results.
Special thanks to Don Flores for his contributions. (Don, we should record and sell our phone conversations concerning our past racing adventures.)
Jim
.The "owner" is very pleased, as am I. It will be next week before the "owner" is able to go over all our info and post about the build and the track results.
Special thanks to Don Flores for his contributions. (Don, we should record and sell our phone conversations concerning our past racing adventures.)
Jim