My 2.5L Stroker Engine Buildup Thread
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Joined: Nov 2004
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Originally Posted by ya@inlinepro,May 3 2006, 06:07 PM
I'll be using the aem EMS as well.
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From: hampshire
this hass dropped off the second side of the world........
what has happened to the every day or so updates... all we seem to be getting not it patchy info.
must not be too good for any people who where thinking about buying this kit, because if your wanting to settle reliability issues and make this thread about the whole engine build up from start to end + dyno #'s, then you have kinda failed at keeping the interest up.
Yes i can understand work my be busy, and you may be getting a lot of customers.. but an update take 5 minuts of time. you dont need to post pictures just a general update to keep people interest up etc.....
so what has happened to this engine ?
adam
what has happened to the every day or so updates... all we seem to be getting not it patchy info.
must not be too good for any people who where thinking about buying this kit, because if your wanting to settle reliability issues and make this thread about the whole engine build up from start to end + dyno #'s, then you have kinda failed at keeping the interest up.
Yes i can understand work my be busy, and you may be getting a lot of customers.. but an update take 5 minuts of time. you dont need to post pictures just a general update to keep people interest up etc.....
so what has happened to this engine ?
adam
Joined: Mar 2005
Posts: 5,946
Likes: 7
From: honolulu, hawaii
Originally Posted by ya@inlinepro,Jun 5 2006, 06:32 PM
MOTOR IS COMPLETE!
here are the final pics before i create a new thread on the DYNO #'s!!!
My valve cover is on the way from the powder coater. so these will be the final pics until it is in my car.
hope ya'll enjoyed everything.
here are the final pics before i create a new thread on the DYNO #'s!!!
My valve cover is on the way from the powder coater. so these will be the final pics until it is in my car.
hope ya'll enjoyed everything.
Joined: Jan 2003
Posts: 5,722
Likes: 1
From: MIAMI
Originally Posted by ADAM_ROB_UK,Jun 13 2006, 04:38 PM
this hass dropped off the second side of the world........
what has happened to the every day or so updates... all we seem to be getting not it patchy info.
must not be too good for any people who where thinking about buying this kit, because if your wanting to settle reliability issues and make this thread about the whole engine build up from start to end + dyno #'s, then you have kinda failed at keeping the interest up.
Yes i can understand work my be busy, and you may be getting a lot of customers.. but an update take 5 minuts of time. you dont need to post pictures just a general update to keep people interest up etc.....
so what has happened to this engine ?
adam
what has happened to the every day or so updates... all we seem to be getting not it patchy info.
must not be too good for any people who where thinking about buying this kit, because if your wanting to settle reliability issues and make this thread about the whole engine build up from start to end + dyno #'s, then you have kinda failed at keeping the interest up.
Yes i can understand work my be busy, and you may be getting a lot of customers.. but an update take 5 minuts of time. you dont need to post pictures just a general update to keep people interest up etc.....
so what has happened to this engine ?
adam
Cheers
Juan
Joined: May 2004
Posts: 3,403
Likes: 6
From: DFW, TX
Originally Posted by Race Miata,Jun 13 2006, 11:37 AM
Assuming:
100% VE
13 CR
14.7psi atmosphere pressure at sea level
2488cc
max torque on the crank = AP x CR x VE x CC / 2471
= 14.7 x 13 x 1.00 x 2488 / 2471
= 192.4 lbf
Even if such engine can keep 100% VE at 8000rpm, it'll produce
294.50hp at the crank. Assuming 40hp loss which may be too optimistic, that's 254.5rwhp.
To get 285 rwhp, that means 325hp or more at the crank. To make such HP with such engine, you need 100% VE at 8828rpm (IOW, a perfectly flat torque curve to 8828rpm which IMO is very hard if not impossible).
EDIT: must be something wrong with my calculations. I can't get the stock numbers with these calculations either. Somebody please correct me while I'm searching links to the equation on the Internet now.
100% VE
13 CR
14.7psi atmosphere pressure at sea level
2488cc
max torque on the crank = AP x CR x VE x CC / 2471
= 14.7 x 13 x 1.00 x 2488 / 2471
= 192.4 lbf
Even if such engine can keep 100% VE at 8000rpm, it'll produce
294.50hp at the crank. Assuming 40hp loss which may be too optimistic, that's 254.5rwhp.
To get 285 rwhp, that means 325hp or more at the crank. To make such HP with such engine, you need 100% VE at 8828rpm (IOW, a perfectly flat torque curve to 8828rpm which IMO is very hard if not impossible).
EDIT: must be something wrong with my calculations. I can't get the stock numbers with these calculations either. Somebody please correct me while I'm searching links to the equation on the Internet now.
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Joined: Mar 2005
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From: Vancouver
Originally Posted by Silver9k,Jun 13 2006, 03:13 PM
well using stock numbers and your calc its about 40 ftlbs off...so, in that case, you may be able to assume that extra 30hp is quite possible...It would be nice.
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From: NOVA/Rye,NY/Tempe AZ
Originally Posted by Silver9k,Jun 13 2006, 05:13 PM
well using stock numbers and your calc its about 40 ftlbs off...so, in that case, you may be able to assume that extra 30hp is quite possible...It would be nice.
When iyou take into acount all the upgraded parts this set up has compared to mine i don't feel bad sayinig this has potential for over 300hp, the intake manifold will for sure be a major limiting factor of this set up. Also part of me thinks the cams my hurt this set up dependinig how the head work was done, i think the stock 2.2L cams would do better Also for all the calculatioins i have done for drivetrain losses in the S2000 form actual dyno #s of miutiple cars there is typically a 16.7 ~ 17% loss the through the tranny.
on a side note all these wonderful picitures of the build up and none of the key to it all the magical crankshaft
-Matt
p.s heres my old dyno
Thread Starter
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Joined: Jul 2005
Posts: 1,216
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From: Springfield, VA
Originally Posted by ADAM_ROB_UK,Jun 13 2006, 06:38 AM
this hass dropped off the second side of the world........
what has happened to the every day or so updates... all we seem to be getting not it patchy info.
must not be too good for any people who where thinking about buying this kit, because if your wanting to settle reliability issues and make this thread about the whole engine build up from start to end + dyno #'s, then you have kinda failed at keeping the interest up.
Yes i can understand work my be busy, and you may be getting a lot of customers.. but an update take 5 minuts of time. you dont need to post pictures just a general update to keep people interest up etc.....
so what has happened to this engine ?
adam
what has happened to the every day or so updates... all we seem to be getting not it patchy info.
must not be too good for any people who where thinking about buying this kit, because if your wanting to settle reliability issues and make this thread about the whole engine build up from start to end + dyno #'s, then you have kinda failed at keeping the interest up.
Yes i can understand work my be busy, and you may be getting a lot of customers.. but an update take 5 minuts of time. you dont need to post pictures just a general update to keep people interest up etc.....
so what has happened to this engine ?
adam
this thread was for the motor build up, and its complete.
Joined: May 2004
Posts: 3,403
Likes: 6
From: DFW, TX
Originally Posted by ya@inlinepro,Jun 13 2006, 07:36 PM
My next update will be when the dyno sheet comes up.
this thread was for the motor build up, and its complete.
this thread was for the motor build up, and its complete.
