www.gt4dc.co.uk
Maintain, Modify and DRIVE your GT-Four


It is currently Mon Oct 06, 2025 10:18 am

View unanswered posts | View active topics

Board index » GT-Four Discussion » Modification



Post new topic Reply to topic  Page 22 of 37
  [ 541 posts ]  Go to page Previous  1 ... 19, 20, 21, 22, 23, 24, 25 ... 37  Next
  Print view Previous topic | Next topic 
Author Message
Sunny
 Post subject:
PostPosted: Mon Jun 04, 2012 5:27 pm 
Offline
WRC
User avatar

Joined: Tue Dec 09, 2008 6:51 pm
Posts: 1397
Location: Austria
Car Model: None
Hi,

took some time to polish the combustion camber and to calculate the volume, ~48mL

[img][img]http://www.abload.de/img/foto05339ii08.jpg[/img][/IMG]

[img][img]http://www.abload.de/img/foto0536lsdy2.jpg[/img][/IMG]

greetz

_________________
KEEP COOL UNDER PRESSURE
Image
street legal?.....perhaps in tschibuti
Top
 Profile  
 
Sirius
 Post subject:
PostPosted: Mon Jun 04, 2012 7:31 pm 
Offline
Club Staff
User avatar

Joined: Wed Jul 13, 2005 12:14 am
Posts: 3267
Location: Camberley, Surrey
Car Model: ST205
Hi Sunny,

Looks really nice. :)

How did you measure the volume of the combustion chamber?

_________________
GT4DC Events Co-ordinator
1996 ST205 UK
Top
 Profile  
 
Sunny
 Post subject:
PostPosted: Mon Jun 04, 2012 8:44 pm 
Offline
WRC
User avatar

Joined: Tue Dec 09, 2008 6:51 pm
Posts: 1397
Location: Austria
Car Model: None
Hi,

very simple, i will do you a picture of it tomorrow 8)

greetz

_________________
KEEP COOL UNDER PRESSURE
Image
street legal?.....perhaps in tschibuti
Top
 Profile  
 
TrackToyFour
 Post subject:
PostPosted: Tue Jun 05, 2012 12:21 am 
Offline
Club Staff
User avatar

Joined: Wed Jul 13, 2005 12:06 am
Posts: 4743
Location: Perth, Western Australia
Car Model: ST205
Taking the piston crown and head gasket into account I presume?

_________________
Don
GT4DC Chairman
1994 Toyota Celica GT-Four ST205WRC JDM 269bhp @ 0.9bar
1994 Toyota Celica GT-Four Special GT 590bhp @ 1.8bar
1989 Van Diemen RF88/89 Formula Ford 1600
2008 Nissan Patrol GU 3.0L ZD30DDTi 154bhp
Top
 Profile  
 
Sirius
 Post subject:
PostPosted: Tue Jun 05, 2012 12:52 am 
Offline
Club Staff
User avatar

Joined: Wed Jul 13, 2005 12:14 am
Posts: 3267
Location: Camberley, Surrey
Car Model: ST205
Hi Don,

Piston crown data usually comes on a sheet with the pistons. The volume of the HG can easily be factored in to a calculation.

I am going to need to do this very shortly on my engine to ascertain what HG thickness I need to purchase or if the standard gasket will be suitable.

_________________
GT4DC Events Co-ordinator
1996 ST205 UK
Top
 Profile  
 
Sunny
 Post subject:
PostPosted: Tue Jun 05, 2012 3:40 pm 
Offline
WRC
User avatar

Joined: Tue Dec 09, 2008 6:51 pm
Posts: 1397
Location: Austria
Car Model: None
Hi,

you just need this, the only thing on the foto what is missing is water

Image

Image

the headgasket will be calculated and by bore volume you use the same technic, and then you can easy calculate the CR and prove every cylinder for a equal volume :)

greetz

_________________
KEEP COOL UNDER PRESSURE
Image
street legal?.....perhaps in tschibuti
Top
 Profile  
 
Sirius
 Post subject:
PostPosted: Tue Jun 05, 2012 4:44 pm 
Offline
Club Staff
User avatar

Joined: Wed Jul 13, 2005 12:14 am
Posts: 3267
Location: Camberley, Surrey
Car Model: ST205
Lol - what on planet earth is that? :D

_________________
GT4DC Events Co-ordinator
1996 ST205 UK
Top
 Profile  
 
Sunny
 Post subject:
PostPosted: Tue Jun 05, 2012 6:57 pm 
Offline
WRC
User avatar

Joined: Tue Dec 09, 2008 6:51 pm
Posts: 1397
Location: Austria
Car Model: None
Hi,

lol :lol:

- acrylic glass, with holes to fill water in and that air can escape
- lubricating grease to seal the acrylic glass
- a shot with scale to fill in water
- water as liquid to fill the camber (i would use diesel or any other low viscosity oil for the block)

any questions left :lol:

greetz

_________________
KEEP COOL UNDER PRESSURE
Image
street legal?.....perhaps in tschibuti
Top
 Profile  
 
Sirius
 Post subject:
PostPosted: Tue Jun 05, 2012 10:03 pm 
Offline
Club Staff
User avatar

Joined: Wed Jul 13, 2005 12:14 am
Posts: 3267
Location: Camberley, Surrey
Car Model: ST205
Hi Sunny,

Makes sense to me now!

I plan to do the same to measure the combustion chamber volume on my head when I get it back.

_________________
GT4DC Events Co-ordinator
1996 ST205 UK
Top
 Profile  
 
Sunny
 Post subject:
PostPosted: Fri Jun 08, 2012 6:44 pm 
Offline
WRC
User avatar

Joined: Tue Dec 09, 2008 6:51 pm
Posts: 1397
Location: Austria
Car Model: None
Hi,

the engine arrives today

[img][img]http://www.abload.de/img/motor1ie98.jpg[/img][/IMG]

- 86,25mm pistons verbauen
- everything balanced
- everything weight mached
- 3 layer TRD bearings (complete engine)
- repaired crank becouse the crank seal damages the sourface
- 0,05mm decked

and the next is to calculate the volume too to get the CR and then i will slowly begin to assemble everything together

greetz

_________________
KEEP COOL UNDER PRESSURE
Image
street legal?.....perhaps in tschibuti
Top
 Profile  
 
Sunny
 Post subject:
PostPosted: Sun Jun 10, 2012 12:03 pm 
Offline
WRC
User avatar

Joined: Tue Dec 09, 2008 6:51 pm
Posts: 1397
Location: Austria
Car Model: None
Hi,

calculated CR is 8,8:1

greetz

_________________
KEEP COOL UNDER PRESSURE
Image
street legal?.....perhaps in tschibuti
Top
 Profile  
 
TrackToyFour
 Post subject:
PostPosted: Sun Jun 10, 2012 1:43 pm 
Offline
Club Staff
User avatar

Joined: Wed Jul 13, 2005 12:06 am
Posts: 4743
Location: Perth, Western Australia
Car Model: ST205
I assume that's calculated with the OEM head gasket? Are you happy with CR of 8.8?

_________________
Don
GT4DC Chairman
1994 Toyota Celica GT-Four ST205WRC JDM 269bhp @ 0.9bar
1994 Toyota Celica GT-Four Special GT 590bhp @ 1.8bar
1989 Van Diemen RF88/89 Formula Ford 1600
2008 Nissan Patrol GU 3.0L ZD30DDTi 154bhp
Top
 Profile  
 
mixer72
 Post subject:
PostPosted: Sun Jun 10, 2012 3:32 pm 
Offline
Junior WRC

Joined: Fri Mar 27, 2009 9:39 pm
Posts: 838
Car Model: None
look very nice mate :)
Top
 Profile  
 
Sunny
 Post subject:
PostPosted: Tue Jun 12, 2012 9:07 pm 
Offline
WRC
User avatar

Joined: Tue Dec 09, 2008 6:51 pm
Posts: 1397
Location: Austria
Car Model: None
Hi,

and thanks, yes i'am nearly happy my target was 9:1 and it was calculated with 1,2mm HKS gasket

the buttom is finished

Image

as written in a other thread i had to grind a little bit to get enough space for the blacktop oil pump

greetz

_________________
KEEP COOL UNDER PRESSURE
Image
street legal?.....perhaps in tschibuti
Top
 Profile  
 
Sunny
 Post subject:
PostPosted: Mon Jun 25, 2012 12:33 pm 
Offline
WRC
User avatar

Joined: Tue Dec 09, 2008 6:51 pm
Posts: 1397
Location: Austria
Car Model: None
Hi,

lets have a look how much i can do this week, everytime that little problems like the correct key for the arp studs and i foudn a little space problem by the injector connectors and the rail so i have to grind a little bit

a intercooler is also on the way to me to solve the biggest question, what type of valvecover fit well......

but time heals every wounds :)

greetz

_________________
KEEP COOL UNDER PRESSURE
Image
street legal?.....perhaps in tschibuti
Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  Page 22 of 37
  [ 541 posts ]  Go to page Previous  1 ... 19, 20, 21, 22, 23, 24, 25 ... 37  Next

Board index » GT-Four Discussion » Modification

Who is online

Users browsing this forum: No registered users and 12 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

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group