Pistones M30 con cigueñal de S14
- Autor miilor
- Fecha de inicio
From a friend Jack Roberts, he had said he produced about 180hp with this setup...........
This is the only way I know to build a larger displacement M10 using all BMW
parts and results in 2234cc of displacement. If you approach this cookbook
style you will need:
One E21 or late 2002 M10 engine block (89mm bore)
One E30 M3 S14 crankshaft (84mm stroke)
Four M10 connecting rods (they are all the same)
One E12 style M10 cylinder head as used on late (73>) 2002
Four of the six pistons from a 3.4 liter M30 with 10.0:1 CR (used in 84 to
87 non-catalyst Euro motor)
One early E21 or E30 FI intake manifold or any carb manifold
Bore block to fit 92mm pistons--this is the maximum feasible overbore
(3mm/0.120") for an M10. Anything larger and you are going to strike water.
Deck block 1mm/0.040" in order to achieve the correct piston height since
the M30 pistons have a pin height for a 86mm stroke.
Assemble the lower end and clearance the block crankcase, crank counter
weights, and/or connecting rods as necessary. Re-balance any moving part
that required grinding.
Shave the E12 head 0.5mm/0.020" in order to achieve the rated 10.0:1 CR.
This reduces the E12 head's 61cc combustion chamber to 58cc which is the
same volume as the M30 head's combustion chambers for which the pistons were
designed. BTW, the reason for using an E12 head is because its combustion
chambers are shaped the most like the M30 head's combustion chambers of any
of the M10 heads and therefore will accept the "grand piano" shaped dome of
the M30 pistons.
You can use any intake manifold except the 80 to 83 E21 FI manifold because
it does not have a provision for injector mounting.
If you are willing to substitute custom made aftermarket pistons, these can
be made up with the correct crown configuration for any of the available M10
heads. E30 M3 S14 pistons will not work because the M10 89mm block cannot
be safely overbored to 93.4mm.
Seguramente deben ser los mismos pistones que usan los motores M30 3.5, usado en los E24, E28 y todos los modelos que tienen 3500cc, incluyendo los motores que ponian en los ALPINA B6.
Los pistones que tenian los M30 3.3 tienen el mismo diámetro de los pistones del M10, 89mm, y los pistones del 3.5 son de 93mm
Sin embargo, en el ETK aparecen unos pistones de 92mm, que equivaldrian a un motor 3.4 como el que mencionan alli. Parece que era una opcion al momento de reparar los motores M30 3.3, llevarlos a 3.4 o 3.5.
Es claro que un motor M10 puede llevarse hasta 2300cc con pistones de 93mm... luego es interesante la opcion, si se obtiene buena compresion!!
This is the only way I know to build a larger displacement M10 using all BMW
parts and results in 2234cc of displacement. If you approach this cookbook
style you will need:
One E21 or late 2002 M10 engine block (89mm bore)
One E30 M3 S14 crankshaft (84mm stroke)
Four M10 connecting rods (they are all the same)
One E12 style M10 cylinder head as used on late (73>) 2002
Four of the six pistons from a 3.4 liter M30 with 10.0:1 CR (used in 84 to
87 non-catalyst Euro motor)
One early E21 or E30 FI intake manifold or any carb manifold
Bore block to fit 92mm pistons--this is the maximum feasible overbore
(3mm/0.120") for an M10. Anything larger and you are going to strike water.
Deck block 1mm/0.040" in order to achieve the correct piston height since
the M30 pistons have a pin height for a 86mm stroke.
Assemble the lower end and clearance the block crankcase, crank counter
weights, and/or connecting rods as necessary. Re-balance any moving part
that required grinding.
Shave the E12 head 0.5mm/0.020" in order to achieve the rated 10.0:1 CR.
This reduces the E12 head's 61cc combustion chamber to 58cc which is the
same volume as the M30 head's combustion chambers for which the pistons were
designed. BTW, the reason for using an E12 head is because its combustion
chambers are shaped the most like the M30 head's combustion chambers of any
of the M10 heads and therefore will accept the "grand piano" shaped dome of
the M30 pistons.
You can use any intake manifold except the 80 to 83 E21 FI manifold because
it does not have a provision for injector mounting.
If you are willing to substitute custom made aftermarket pistons, these can
be made up with the correct crown configuration for any of the available M10
heads. E30 M3 S14 pistons will not work because the M10 89mm block cannot
be safely overbored to 93.4mm.
Seguramente deben ser los mismos pistones que usan los motores M30 3.5, usado en los E24, E28 y todos los modelos que tienen 3500cc, incluyendo los motores que ponian en los ALPINA B6.
Los pistones que tenian los M30 3.3 tienen el mismo diámetro de los pistones del M10, 89mm, y los pistones del 3.5 son de 93mm
Sin embargo, en el ETK aparecen unos pistones de 92mm, que equivaldrian a un motor 3.4 como el que mencionan alli. Parece que era una opcion al momento de reparar los motores M30 3.3, llevarlos a 3.4 o 3.5.
Es claro que un motor M10 puede llevarse hasta 2300cc con pistones de 93mm... luego es interesante la opcion, si se obtiene buena compresion!!
creo que es mas facil mandar a fabricar 4 pistones exactos para el m10 con el bajo del m3 que bscar esos pistones
los que yo tengo pedidos son marca wosner de 2.300 y son como los alpinacabeza redonda con los rebajes de las valvulas
y son forjados.
el precio sin portes es de 669e
los que yo tengo pedidos son marca wosner de 2.300 y son como los alpinacabeza redonda con los rebajes de las valvulas
y son forjados.
el precio sin portes es de 669e
me los pidio mi mecanico a inglaterra por 630 eur
creo que el 18 me llegaran por fin
y luego las tapillas del m3 2.5 que son super engrasadas tienen 4 o 5 perforaciones y salen 350 eur el juego completo de cigueñal y vielas
pero eso mas adelante
prfiero repasar el bloque
para saber exacto el diametro
voy a ver quien distribuye por españa los wossner y te digo
creo que el 18 me llegaran por fin
y luego las tapillas del m3 2.5 que son super engrasadas tienen 4 o 5 perforaciones y salen 350 eur el juego completo de cigueñal y vielas
pero eso mas adelante
prfiero repasar el bloque
para saber exacto el diametro
voy a ver quien distribuye por españa los wossner y te digo
ahhh se me paso .
si son para hemisferica mejor.aunke se podran montar en otra trabajandola creo
aunke los hay como los del ti tmbien
y planos
pero mejor los mios
tamb varia el precio
pero no se cuanto
si son para hemisferica mejor.aunke se podran montar en otra trabajandola creo
aunke los hay como los del ti tmbien
y planos
pero mejor los mios
tamb varia el precio
pero no se cuanto
alexfl82 dijo:
Pues no quedamos en nada. Algo he leído sobre montar esos pistones, pero cuales son exactamente. Pq en algún lado leí q tenían q ser los sobre medida de los motores 3,3 q cubican casi 3.4cc y en otro que eran los pistones de los 635csi,735 etc... (estos últimos son para culatas hemisferícas verdad? con un domo central redondo)
Miky dijo:
Yo había leido que eran este tipo de pistones los utilizados.
¿Pq no pruebas a ponerte en contacto con los de piestones JE en USA? tengo entendido que son muy buenos y que tienen buenos precios.
http://www.jepistons.com/
Me han contestado tb los de JE
"No problem to make you pistons for the S14 Block with the M10 1.8i E30 Head.
A Basic No Options set of 4 custom BMW S14 / M10 Head JE 2618 Alloy forged pistons with wrist pins and JE Rings is $685 per set and takes approx 4 weeks to build. Any bore size or compression ratio you want...
Options: Items with * are recommended for Turbo, NOS, and High RPM Normally aspirated Endurance Racing use. See this page for description: http://www.racetep.com/jecustom.html#custopt
*Add $20 per piston for Total-Seal Gapless 2nd rings (Street and mild Race use)
*Add $35 per piston for Total-Seal Gapless Top rings (Endurance Road Race, Extreme Turbo and NOS Use.)
Note: You do EITHER Gapless Top or Gapless 2nd. NOT Both.
*Add $43 per piston for High Heat Ceramic Coated crowns and Moly coated skirts
*Add $15 Per piston for Lightweight or Heavy Duty Wrist Pins
Add $25 Per piston for extreme lightening (Normally aspirated High RPM use only. Not for turbo or NOS)
Add $18 per piston for FSR Forgings. (Limited to certain bore sizes and applications only.)
Add $22 Per piston for Lateral Gas Ports (For Drag Race and High Compression engines, also good for NOS use.)
*Add $8 per piston for Contact Reduction Grooves
Add $6 per piston for Accumulator grooves
Shipping is $79 by Global Express Mail (Tracked ) + an optional $4 for Insurance to Spain
1) Payment via BankTransfer (Details forwarded when ready to order and a $20 fee for all transfers.)
2) Western Union (Details forwarded when ready to order)
3) PayPal (Verified accounts only and a 3% fee on Total order value including shipping )
4) Credit Card:
2.0% Fee for all Visa and Mastercard Transactions*.
2.5% Fee for American Express Cards
All shipments can only be sent to the verifiable Billing Address for the card. No exceptions to this rule. Credit Card orders must be faxed in on the attached order form with the cardholders signature and a verifiable billing address.
As with all our International orders UPON REQUEST we will include a set of VERY LOW AMOUNT invoices (12%-15% of the actual value you paid for the part on the invoice.) to save you on customs and duty on your end. This does not mean we are giving you a 15% Discount, we are just making the documents for a lower amount to save you on Customs and Duty in your Country. We cannot invoice parts as a "Gift" but we will make the amount much lower.
NOTE: We do not charge any sales taxes or Duty on this end. That is all with customs on your end when the package arrives."
Lo bueno de los JE es que los puedo pedir con la compresión y diámetro que yo quiera.
"No problem to make you pistons for the S14 Block with the M10 1.8i E30 Head.
A Basic No Options set of 4 custom BMW S14 / M10 Head JE 2618 Alloy forged pistons with wrist pins and JE Rings is $685 per set and takes approx 4 weeks to build. Any bore size or compression ratio you want...
Options: Items with * are recommended for Turbo, NOS, and High RPM Normally aspirated Endurance Racing use. See this page for description: http://www.racetep.com/jecustom.html#custopt
*Add $20 per piston for Total-Seal Gapless 2nd rings (Street and mild Race use)
*Add $35 per piston for Total-Seal Gapless Top rings (Endurance Road Race, Extreme Turbo and NOS Use.)
Note: You do EITHER Gapless Top or Gapless 2nd. NOT Both.
*Add $43 per piston for High Heat Ceramic Coated crowns and Moly coated skirts
*Add $15 Per piston for Lightweight or Heavy Duty Wrist Pins
Add $25 Per piston for extreme lightening (Normally aspirated High RPM use only. Not for turbo or NOS)
Add $18 per piston for FSR Forgings. (Limited to certain bore sizes and applications only.)
Add $22 Per piston for Lateral Gas Ports (For Drag Race and High Compression engines, also good for NOS use.)
*Add $8 per piston for Contact Reduction Grooves
Add $6 per piston for Accumulator grooves
Shipping is $79 by Global Express Mail (Tracked ) + an optional $4 for Insurance to Spain
1) Payment via BankTransfer (Details forwarded when ready to order and a $20 fee for all transfers.)
2) Western Union (Details forwarded when ready to order)
3) PayPal (Verified accounts only and a 3% fee on Total order value including shipping )
4) Credit Card:
2.0% Fee for all Visa and Mastercard Transactions*.
2.5% Fee for American Express Cards
All shipments can only be sent to the verifiable Billing Address for the card. No exceptions to this rule. Credit Card orders must be faxed in on the attached order form with the cardholders signature and a verifiable billing address.
As with all our International orders UPON REQUEST we will include a set of VERY LOW AMOUNT invoices (12%-15% of the actual value you paid for the part on the invoice.) to save you on customs and duty on your end. This does not mean we are giving you a 15% Discount, we are just making the documents for a lower amount to save you on Customs and Duty in your Country. We cannot invoice parts as a "Gift" but we will make the amount much lower.
NOTE: We do not charge any sales taxes or Duty on this end. That is all with customs on your end when the package arrives."
Lo bueno de los JE es que los puedo pedir con la compresión y diámetro que yo quiera.
no se si lo he entendido bien .cual es la cilindrada de los je ( 2614 ) o 1.8 es que no dice nada de 2.300cc no
y ademas son como los ti
lo bueno es uqe te los consigan como los alpina
http://www.iasapistons.com/
de aki se trajo un preparador de mi zona hace unos años unos pistones replica alpina y se los hicieron para el coche mandandole las especificaciones y eran exactamente iwales y le salieron por 900eur
ahora no se como lo hizo y no eran para el bloque s14 sino para el m10
igual hay suerte
tu que sabes ingles miky escribeles haber.
y ademas son como los ti
lo bueno es uqe te los consigan como los alpina
http://www.iasapistons.com/
de aki se trajo un preparador de mi zona hace unos años unos pistones replica alpina y se los hicieron para el coche mandandole las especificaciones y eran exactamente iwales y le salieron por 900eur
ahora no se como lo hizo y no eran para el bloque s14 sino para el m10
igual hay suerte
tu que sabes ingles miky escribeles haber.