My 2.5L Stroker Engine Buildup Thread
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From: Springfield, VA
Originally Posted by Sideways,May 3 2006, 06:58 AM
Questions from the "question guy":
What is the actual stroke you are using?
I'm assuming the bore at 89mm or is it larger?
Who makes the rods?
What is the weight and manufacturer of those pretty pistons?
Looking forward to your progress.
What is the actual stroke you are using?
I'm assuming the bore at 89mm or is it larger?
Who makes the rods?
What is the weight and manufacturer of those pretty pistons?
Looking forward to your progress.
The rods and pistons custom made. And the pistons weigh anywhere from 300-330 depending on the bore size.
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From: Mother F'in TN
Originally Posted by ya@inlinepro,May 3 2006, 06:04 PM
We remove them because there is a clearance issue with the crankshaft and the piston.
If you have ever seen any motor that has broken an oil squirter and the damage it does, then you would understand why it is more beneficial to take them out then to leave them in.
And it is 100% safe for daily driven purposes.
If you have ever seen any motor that has broken an oil squirter and the damage it does, then you would understand why it is more beneficial to take them out then to leave them in.
And it is 100% safe for daily driven purposes.
I've seen a few people forget to install them, and sieze a crankshaft very quickly.
I'm waiting to see a car without the oil squirters that see occasional track and High RPM use for at least 100K before I'd consider it 100% safe for a daily driver. (IMHO)
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From: Springfield, VA
Originally Posted by Slows2k,May 3 2006, 03:32 PM
The only cause of a broken oil squirter I can think of is a rod hitting it. At that point, the damage isn't from the oil jet, it was from the rod breaking.
I've seen a few people forget to install them, and sieze a crankshaft very quickly.
I'm waiting to see a car without the oil squirters that see occasional track and High RPM use for at least 100K before I'd consider it 100% safe for a daily driver. (IMHO)
I've seen a few people forget to install them, and sieze a crankshaft very quickly.
I'm waiting to see a car without the oil squirters that see occasional track and High RPM use for at least 100K before I'd consider it 100% safe for a daily driver. (IMHO)
If you forgot to install the squirters, and not block them, there will be no oil pressure, therefore it'll seize. If the squirters are IN, and they break, oil pressure is lost as well, and the rod will melt and grab the crank, and then boom...
I stand by what Jeremy, our builder says, so hopefully i can show you what its made of
.
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From: Springfield, VA
Originally Posted by Stoner_1,May 3 2006, 05:47 PM
What fuel management system are you going to use with the engine?
I'll be using the aem EMS as well.
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From: South of the pier, Huntington Beach, CA
Some trivia:
Input Parameters Are the Following:
* Number of Cylinders are = 4
* Piston Diameter = 90.000 Millimeters
* Engine Stroke = 100.000 Millimeters
Computation Results:
# Computed Engine Displacement (CID) is 155
# Computed Engine Displacement (Litres) is 2.5
# Computed Engine Displacement (CC) is 2544.7
* Number of Cylinders are = 4
* Piston Diameter = 90.000 Millimeters
* Engine Stroke = 99.000 Millimeters
Computation Results:
# Computed Engine Displacement (CID) is 154
# Computed Engine Displacement (Litres) is 2.5
# Computed Engine Displacement (CC) is 2519.3
25.4cc (1.55cu inch) difference with 1ml stroke on this engine. Both are 2.5 liters.
Input Parameters Are the Following:
* Number of Cylinders are = 4
* Piston Diameter = 90.000 Millimeters
* Engine Stroke = 100.000 Millimeters
Computation Results:
# Computed Engine Displacement (CID) is 155
# Computed Engine Displacement (Litres) is 2.5
# Computed Engine Displacement (CC) is 2544.7
* Number of Cylinders are = 4
* Piston Diameter = 90.000 Millimeters
* Engine Stroke = 99.000 Millimeters
Computation Results:
# Computed Engine Displacement (CID) is 154
# Computed Engine Displacement (Litres) is 2.5
# Computed Engine Displacement (CC) is 2519.3
25.4cc (1.55cu inch) difference with 1ml stroke on this engine. Both are 2.5 liters.
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From: Springfield, VA
Originally Posted by vader1,May 3 2006, 09:04 AM
Holy crap the amount of metal between chambers is looking really thin...... 
I hope your project is a success.
I hope your project is a success.
this is how beefy it is.
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From: Springfield, VA
5/3/06 UPDATE
Today was spent honing the cylinders. Only got the first part finished, the honing process should be done tomorrow evening and hopefully more.
Torque plate was used for precise measurements.
the first step/technique of Jeremy's honing process.
Thats it for tonight, will be adding mroe tomorrow night i hope
Today was spent honing the cylinders. Only got the first part finished, the honing process should be done tomorrow evening and hopefully more.
Torque plate was used for precise measurements.
the first step/technique of Jeremy's honing process.
Thats it for tonight, will be adding mroe tomorrow night i hope
