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| OzECruisers General Discussions E/N/D vehicles General Discussion ONLY. NO TECH THREADS |
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22-03-2006, 05:52 PM
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FF.Com.Au Hardcore
Join Date: Mar 2006
Location: Under the bonnet, trying to keep as clean as above!
Posts: 1,354
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hi all just wondering what the difference is, if there is one between balancing a motor and blueprinting a motor?
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22-03-2006, 05:55 PM
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Banned
Join Date: Dec 2004
Location: South East Melbourne
Posts: 6,156
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Balancing = getting the crank/flywheel/balancer to spin true, getting all the rods/pistons/bears/gudeons to weigh the same.
Blueprinting = Getting everything to exact factory specs. Clearances, journal sizes, etc, etc. |
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22-03-2006, 05:58 PM
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Petro-sexual
Join Date: Dec 2004
Location: Melbourne
Posts: 4,527
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Balancing balances all the rotating mass (crank, pistons and rods) for smoothest possible operation.
Blueprinting from what i've read involves checking that all the cylinders are equally spaced, and the main bearing journals are all square and equal...may be more to it but I dont know. |
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22-03-2006, 06:10 PM
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BASS ON BOARD!
Join Date: Aug 2005
Location: Tweed Heads NSW
Posts: 2,194
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Expensive?
does any machine shop do this?
__________________
Nothing interesting to put here. |
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22-03-2006, 06:23 PM
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FF.Com.Au Hardcore
Join Date: Mar 2006
Location: Under the bonnet, trying to keep as clean as above!
Posts: 1,354
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not realy. i just got my eb done and it was $284 for the balance. that was the harmonic balancer through to the flywheel and the rods and pistons.
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22-03-2006, 06:24 PM
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Performance moderator
 
Join Date: Feb 2005
Location: St Clair..N.S.W
Posts: 14,875
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Blueprinting is setting clearances as the blueprint when engine was designed... Part of that would be blueprinting...Matching ports, oil galleries etc is another part...
Its actually all part of engine assembly or at least good quality assembly...
__________________
Real cars are not driven by front wheels,real cars lift them!!... BABYS ARE BOTTLE FED, REAL MEN GET BLOWN. Don't be afraid to try something new. Remember, amateurs built the Ark...Professionals built the Titanic! Dart 330ci block turbo black pearl EBXR8 482 rwkw.. Daily driver GTE FG.. Projects http://www.fordforums.com.au/showthread.php?t=107711 http://www.fordforums.com.au/showthr...8+turbo&page=4 |
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22-03-2006, 07:19 PM
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5.SPEED
Join Date: Jul 2005
Location: Werribee
Posts: 405
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do u need to blueprint stuff because over the years, your engine may not be to the same specs or something from the factory?
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23-03-2006, 02:02 PM
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Regular Member
Join Date: Jul 2005
Posts: 185
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How come ford didnt balance the crank when it was designed? What was the trade-off for not doing it from factory?
Brent
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EB1 Falcon Wagon 3.9L Multipoint with 5 speed manual Pacemaker extractors & 2.5" Redback exhaust Tickford Head and Wade 1004 cam HP4 Chiptorque chip and XH intake 1992 DC LTD
5LTR DUEL FUEL |
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23-03-2006, 02:41 PM
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#9 | ||
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Regular Member
Join Date: Jan 2005
Posts: 209
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Real Blue printing is about removing tolerances. Especially factory specs.
Factory tolerances (especially of old) have been appalling. If an motor company says for example that a clearance of betweeen 2 and 3 thou is ok than anything meeting those dimensions be excepted. A blue printer will want either 2 or 3 thou (or an exact figure in between depending on application), and they will machine/modify/swap to that. They will then see to every other similar point and match it. Blueprinting is the reason race engines are so expensive. Its very time consuming for not a lot of gain. 100 hours to assemble a V8 Supercar engine. So many engine builders match the piston diameter to the top of the bore and say the engine is blue printed. They have only covered one of the hundreds of dimensions. Chrispy |
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balance and blueprinted
Linear Mode
