VR4/EVO Stroker Tech

[jinkl]

Since we do not have one, come on guys, share your stroker techs.
Let me start

 

[jinkl]

all thts to dsm

The formula for displacement is 3.1415 * (bore/2)^2 * stroke * number of cylinders.

Using an 88mm (stock 2.0L) crankshaft:
85mm bore = 1997cc
85.5mm bore = 2021
86mm bore = 2045
86.5mm bore = 2068
87mm bore = 2092
87.5mm bore = 2116
88mm bore = 2141
Rod Ratios: stock piston and 150mm rod = 1.70
stroker piston and 156mm rod = 1.77
stroker piston, 2.4 block, 162mm rod = 1.84


For a 92mm Magnus crankshaft:
85mm bore = 2088cc
85.5mm bore = 2113
86mm bore = 2138
86.5mm bore = 2163
87mm bore = 2188
87.5mm bore = 2213
88mm bore = 2238
Rod Ratios: stock piston, 148mm rod = 1.61
stroker piston, 154mm rod = 1.67
stroker piston, 2.4 block, 160mm rod = 1.74


For a 94mm Eagle crankshaft:
85mm bore = 2134cc
85.5mm bore = 2159
86mm bore = 2184
86.5mm bore = 2209
87mm bore = 2235
87.5mm bore = 2261
88mm bore = 2287
Rod Ratios: stock piston, 147mm rod = 1.56
stroker piston, 153mm rod = 1.63
stroker piston, 2.4 block, 159mm rod = 1.69


For a 97mm Crower crankshaft:
85mm bore = 2202cc
85.5mm bore = 2228
86mm bore = 2254
86.5mm bore = 2280
87mm bore = 2306
87.5mm bore = 2333
88mm bore = 2360
Rod Ratios: stock piston, 145.5mm rod = 1.5
stroker piston, 151.5mm rod = 1.56
stroker piston, 2.4 block, 157.5mm rod = 1.62


For a 100mm (stock 2.4L) crankshaft:
85mm bore = 2270cc
85.5mm bore = 2296
86mm bore = 2323
86.5mm bore = 2350
87mm bore = 2378
87.5mm bore = 2405
88mm bore = 2433
Rod Ratios: stock pistons, 144mm rod = 1.44
stroker pistons, 150mm rod = 1.50
stroker pistons, 2.4 block, 156mm rod = 1.56


For a 102mm Crower crankshaft:
85mm bore = 2315cc
85.5mm bore = 2342
86mm bore = 2370
86.5mm bore = 2397
87mm bore = 2425
87.5mm bore = 2453
88mm bore = 2481
Rod Ratios: stock piston, 143mm rod = 1.40
stroker piston, 149mm rod = 1.46
stroker piston, 2.4 block, 155mm rod = 1.52


For a 106mm Crower crankshaft:
Crower states the 106mm crank must be used in a 2.4L block, stock 2.4L bore is 86.5mm.
85mm bore = n/a
85.5mm bore = n/a
86mm bore = n/a
86.5mm bore = 2491cc
87mm bore = 2520
87.5mm bore = 2549
88mm bore = 2579
Rod Ratios: stock piston, 2.4 block, 147mm rod = 1.39
stroker piston, 2.4 block, 153mm rod = 1.44

 

[proPIPING]

hahaha....my rod ratio 1.77.....

 

[goo_61t]

try look at this

 

[proPIPING]

try look at this

hehehe..good info,just copy it to my laptop...

 

[Trinityblood]

another good thread by jinkl..haha

 

[jinkl]

another good thread by jinkl..haha

ehh:hmmmm: copy paste only

 

[proPIPING]

ehh:hmmmm: copy paste only

ha3....another xerox machine...

 

[goo_61t]

hehehe..good info,just copy it to my laptop...

copy trus to your engine laaa hahahahha

 

[goo_61t]

hehehe..good info,just copy it to my laptop...

aiyooo habes laaa i forgot to delete the last part of the bottom end of the file hehehe malu

 

[jinkl]

aiyooo habes laaa i forgot to delete the last part of the bottom end of the file hehehe malu

kantoi, nw we know wht u r buying la hehehehehe

 

[proPIPING]

copy trus to your engine laaa hahahahha

have use it long time.......

 

[HDTmotorsport]

errr jin taiko..
dun have stroker for 4g61 ka?hehehehhe..

1more thing...
can u copy n paste conrod from what engine?
coz got different length..
152,153,156, etc :hmmmm:

 

[jinkl]

errr jin taiko..
dun have stroker for 4g61 ka?hehehehhe..

1more thing...
can u copy n paste conrod from what engine?
coz got different length..
152,153,156, etc :hmmmm:

i tink in propiping's document got :)
some need custom , some can use stock

 

[kroolada]

errr jin taiko..
dun have stroker for 4g61 ka?hehehehhe..

1more thing...
can u copy n paste conrod from what engine?
coz got different length..
152,153,156, etc :hmmmm:

i got stroker kit for 4G61 with 87mm piston he3