Fordmods Logo

Blueprinting 

 

Page 1 of 1 [ 11 posts ] 

 
 Post subject: Blueprinting
Posted: Tue May 06, 2008 7:19 pm 
Getting Side Ways
Offline
User avatar

Age: 31

Posts: 11103

Joined: 15th Nov 2004

Ride: AU III XR8 Pursuit 250 ute

Location: Hobart
TAS, Australia

Anyone got a link to a site or able to tell me anything more about blueprinting?

 

_________________

Heaps of performance EF/L parts for sale, including supercharged VCT motor!

2002 Ford AU Series III Falcon XR8 Pursuit 250 ute - 5.6L of V8 Windsor!

Top
 Profile  
 
 
Posted: Tue May 06, 2008 7:23 pm 
Getting Side Ways
Offline

Age: 33

Posts: 6746

Joined: 13th Mar 2006

Gallery: 10 images

Ride: NCII Fairlane

Location: Bathurst
NSW, Australia

In engine blueprinting, all the specifications are double-checked. Usually this indicates closer-than-factory tolerances, with custom specifications appropriate for a street car or a race car. The goals usually are to:

Ensure the engine puts out the rated power (because not all mass-production engines put out the rated power) for its manufacturer's design
or

Make more power out of a given engine design, by extra careful measurement and assembly
balancing of reprocating parts and rotating assemblies, to reduce engine vibrations thus achieving more power due to recover of power "lost" to vibrations
Ideally, blueprinting is performed on components removed from the production line before normal balancing and finishing. If finished components are blueprinted, there is the risk that the further removal of material will weaken the component. However, lightening components is generally an advantage in itself provided balance and adequate strength are both maintained, and more precise machining will in general strengthen a part by removing stress points, so in many cases performance tuners are able to work with finished components.

For example, an engine manufacturer may list a piston ring end-gap specification of 0.003 to 0.005 inches for general use in a consumer automobile application. For an endurance racing engine which runs hot, a "blueprinted" specification of 0.00045 to 0.00050 may be desired. For a drag-racing engine which runs only in short bursts, a tighter 0.00035 to .00040 inch tolerance may be used instead. Thus "Blueprint" can mean tighter or looser clearances, depending on the goal.

 

_________________

R.I.P Tobias my son.

Top
 Profile  
 
 
Posted: Tue May 06, 2008 7:26 pm 
Getting Side Ways
Offline
User avatar

Age: 32

Posts: 839

Joined: 10th Sep 2006

Gallery: 3 images

Ride: V8 Falcon, Nissan Patrol

Location: Brisbane, Bouncing off 5800RPM
QLD, Australia

Nicely put mate 8-)

 

_________________

1993 Ford Fairmont EB II 5.0L V8 Wagon
1992 Nissan Patrol TI 4.2L Diesel 4x4 Wagon

Top
 Profile  
 
 
Posted: Sun May 11, 2008 8:00 pm 
Getting Side Ways
Offline

Posts: 631

Joined: 27th Jan 2007

Ride: Supercharged BA XL ute

Location: Gordonvale
QLD, Australia

Tp Blueprint is to take it to the original design specs,and that's it nothin' else.

 

_________________

BA XL ute.
P'maker headers',Hi flow cat,3" sports sytem,
Raptor V-clutched lightweight not intercooled,no tranny cooler,no worries.

Top
 Profile  
 
 
Posted: Sun May 11, 2008 8:18 pm 
Smokin em up
Offline
User avatar

Age: 40

Posts: 248

Joined: 4th Nov 2007

Gallery: 1 images

Ride: AUIII

Location: COONABARABRAN
NSW, Australia

iIs it true some engines come from the factory blue printed?, iv'e have read or heard somewhere that they r stamped this way!

 

_________________

AUIII, PACEY 4499's, MAGNIFLOW CAT, 2.5" ZORST, 17X8" AUII XR RIMS....otherwise all factory!

Top
 Profile  
 
 
Posted: Sun May 11, 2008 8:23 pm 
Getting Side Ways
Offline
User avatar

Age: 32

Posts: 4401

Joined: 25th Mar 2005

Ride: BA XT, BA XR6T, ED Ghia 5.0

Location: Perth
WA, Australia

I think the VR GTS-R (the yellow one with huge black bodykit) put out 300kw thanks to factory blueprinting by HSV.

 

_________________

What's the difference between a Holden and a sheep? It's less embarrasing getting out of the back of a sheep..

Top
 Profile  
 
 
Posted: Sun May 11, 2008 8:31 pm 
Getting Side Ways
Offline
User avatar

Posts: 3363

Joined: 27th Dec 2004

Gallery: 4 images

Ride: MCMXCV Falcon

Location: G town
VIC, Australia

fnp wrote:
I think the VR GTS-R (the yellow one with huge black bodykit) put out 300kw thanks to factory blueprinting by HSV.


you are trying to be funny....arnt u???

 

_________________

Image

Top
 Profile  
 
 
Posted: Sun May 11, 2008 8:33 pm 
Getting Side Ways
Offline

Posts: 631

Joined: 27th Jan 2007

Ride: Supercharged BA XL ute

Location: Gordonvale
QLD, Australia

Darth some stuff like the FPV Fords and the HSV Crappydores have handbuilt stuff in them so yea basically taking it to design spec.
FNP there was a VS GTS Holden(i think) with 300kw but it was through cams and stuff besides being blueprinted.

 

_________________

BA XL ute.
P'maker headers',Hi flow cat,3" sports sytem,
Raptor V-clutched lightweight not intercooled,no tranny cooler,no worries.

Last edited by badcooky on Sun May 11, 2008 8:36 pm, edited 1 time in total.

Top
 Profile  
 
 
Posted: Sun May 11, 2008 8:36 pm 
Getting Side Ways
Offline

Posts: 6449

Joined: 11th Nov 2004

a little more on what already been said.

ALL engine are already technicly blue printed. they are built to the original blue print IE:plans.

it's just that mass production demands that there be a tolerence factor.

when you see a spec given as 3thou to 5thou, in the facorty blue print it is 4thou +/- 1thou.

the problem starts when more then on reforence point is used and the second, third or forth point is found as a result of previous work.

you end up with whats called tolerence stacking.

if there are 5 machining operations to be performed and the tolerence for each is +/- 4thou and each operation is checked from the one befor it, you can end up with a 20thou difference from the first to the last. even though the tolerence is only 4thou.

Now we've all heard of the socalled 'freak engines' you know, those facorty built engine that just seem to out perform the others. The other end of the scale is the engine that just seem to get left behind by all the others.
chances are if you pull down each ot the two engines you find the freak fast engine will be almost spot on the factory blue print spec, and the slow engine will be on the border line of tolerence.


for street engine, machine back to factory blue print is all thats needed, and some times is overkill.

it all starts by closing and honing the main tunnel, as all other measurments will be taken from this. the block is the mounted on a jig (through the main tunnel) to the deck(s) trued. In the case of a V8 that means machining the decks 90degress from each other and square and level to the main tunnel. for and inline engine there is only one deck so square a level.
cam shaft tunnels get the same treatment if needed.
then check and correct any other mayjor points on the block

rods will be check for length, twist and bend and for big and little end bore sizes and weights, corrections will be made or rods junked.

the blue printing also incorperates and full ballance job.

ring gaps as mentioned will all be check and corrected. aplication and actual gap is irrelevent in a write up like this, as the prosess is still performed regardless.

crank shafts get indexing and stroke correction. (here is the time to deside if you want a few extra cubes by offset grinding to the smallest bearing size)

you can move onto blue printing cylinder heads aswell but that is story in its self.

jump on ebay or google pitstopbookshop
and find a copy of "The Step By Step Guide To Engine Blueprinting"

it goes through the entire process

 

_________________

PERMANENTLY BANNED

Top
 Profile  
 
 
Posted: Sun May 11, 2008 8:39 pm 
Getting Side Ways
Offline

Posts: 631

Joined: 27th Jan 2007

Ride: Supercharged BA XL ute

Location: Gordonvale
QLD, Australia

There ya go.
Mass production and tooling wearing out is the enemy.
I thought there was blueprinting and balancing as separate but if ya think aboot it it's one process really.
Well done Tichster sixter.

 

_________________

BA XL ute.
P'maker headers',Hi flow cat,3" sports sytem,
Raptor V-clutched lightweight not intercooled,no tranny cooler,no worries.

Top
 Profile  
 
 
Posted: Sun May 11, 2008 8:53 pm 
Smokin em up
Offline
User avatar

Age: 40

Posts: 248

Joined: 4th Nov 2007

Gallery: 1 images

Ride: AUIII

Location: COONABARABRAN
NSW, Australia

thanks for the info! u answered my question.

 

_________________

AUIII, PACEY 4499's, MAGNIFLOW CAT, 2.5" ZORST, 17X8" AUII XR RIMS....otherwise all factory!

Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 1 of 1  [ 11 posts ] 

Who is online

Users browsing this forum: No registered users and 17 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

 

 

It is currently Fri Dec 15, 2017 4:58 am All times are UTC + 11 hours

 

 

(c)2014 Total Web Solutions Australia - Australian Web Hosting and Domain Names