What is the stroke of an ej25d.... Math Crap...

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smh0101
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What is the stroke of an ej25d.... Math Crap...

Post by smh0101 »

I'm working on some calculations and I'm wondering what the distance from BDC to TDC would be on a stroker ej22t/ej25d hybrid would be...

According to Wiseco the stroke is 79... Um, yeah, that makes no sense.... the piston travels 7.9cm... YEAH Right...

So yeah, could someone help me out on this??

thanks
~Spencer
94 Legacy Turbo (550 Robtune/ej20h v2 Sti RA drivetrain)
94 Legacy Ti Wagon (5mt ej22e)
91 rhd Legacy GT Wagon (factory 5mt, ej20g)
93 rhd Legacy GT type S2 Sedan (4eat, ej20g)
91 rhd Legacy Ti Type S 1.8
03 Lincoln LS V8 Sport
08 300 SRT8
555BCTurbo
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Re: What is the stroke of an ej25d.... Math Crap...

Post by 555BCTurbo »

smh0101 wrote:I'm working on some calculations and I'm wondering what the distance from BDC to TDC would be on a stroker ej22t/ej25d hybrid would be...

According to Wiseco the stroke is 79... Um, yeah, that makes no sense.... the piston travels 7.9cm... YEAH Right...

So yeah, could someone help me out on this??

thanks

No...Wiseco means 79mm stroke...which refers to the distance between the throws on the crank.
Nick

1987 Audi 4000CS quattro...soon to be 20VT
1994 Dodge Ram 2500 4x4 CTD, #11 plate, 30 psi, Scotty II intake, 4" exhaust
ChesterKV
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Re: What is the stroke of an ej25d.... Math Crap...

Post by ChesterKV »

smh0101 wrote:I'm working on some calculations and I'm wondering what the distance from BDC to TDC would be on a stroker ej22t/ej25d hybrid would be...

According to Wiseco the stroke is 79... Um, yeah, that makes no sense.... the piston travels 7.9cm... YEAH Right...

So yeah, could someone help me out on this??

thanks
79 mm = 7.9 cm = 3.11 inches

25.4mm per inch





- Chester
EJ22 n/a installed in 1984 Volkswagen Transporter/Vanagon/Bulli
EJ22 motor with blown head-gasket undergoing rebuild to stock specifications
smh0101
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Location: Orlando, FL

Re: What is the stroke of an ej25d.... Math Crap...

Post by smh0101 »

555BCTurbo wrote:
smh0101 wrote:I'm working on some calculations and I'm wondering what the distance from BDC to TDC would be on a stroker ej22t/ej25d hybrid would be...

According to Wiseco the stroke is 79... Um, yeah, that makes no sense.... the piston travels 7.9cm... YEAH Right...

So yeah, could someone help me out on this??

thanks

No...Wiseco means 79mm stroke...which refers to the distance between the throws on the crank.
Imanindiot....

Yeah, I dont know what the hell was wrong with me.

Duh, of course thats it.

Sorry... pointless post.
~Spencer
94 Legacy Turbo (550 Robtune/ej20h v2 Sti RA drivetrain)
94 Legacy Ti Wagon (5mt ej22e)
91 rhd Legacy GT Wagon (factory 5mt, ej20g)
93 rhd Legacy GT type S2 Sedan (4eat, ej20g)
91 rhd Legacy Ti Type S 1.8
03 Lincoln LS V8 Sport
08 300 SRT8
smh0101
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Posts: 3056
Joined: Wed Jan 18, 2006 7:56 am
Location: Orlando, FL

Post by smh0101 »

I'm working on calculating the displacement with different bores and that crank and rods....

so .040 over bore w/ that setup is a 2.4L, while a 2.35L would be 9.75cm bore

9.8cm bore, and 7.9cm stroke

so if volume=(Pi)(r^2)(h)

2.4L
then vol of 1 cylinder = 3.14159(4.9^2)7.9 = 595.8941529

so for a 4 banger thats... 595.8941529 x 4 = 2383.5

So with the over bore its a 2.38L round up and ya gotta a 2.4L Closed Deck w/ oil squirters.

2.35L

(Pi)((9.75/2)^2)7.9 = 589.829112 x 4 = 2359.3

So yeah, thats the 2.35L
So I'm just doing math crap.
~Spencer
94 Legacy Turbo (550 Robtune/ej20h v2 Sti RA drivetrain)
94 Legacy Ti Wagon (5mt ej22e)
91 rhd Legacy GT Wagon (factory 5mt, ej20g)
93 rhd Legacy GT type S2 Sedan (4eat, ej20g)
91 rhd Legacy Ti Type S 1.8
03 Lincoln LS V8 Sport
08 300 SRT8
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