T26 WRC - Frayz Engineering WRC S8 TARMAC SPECIAL - aka THE BOMBER
12 July 2010, 07:10 PM
#1446
Lol frayz, i'm just glad that the turbo is now ordered and your getting somewhere.....are you going to be using standard valve stem seals or the supertech jobbies?
Edit: What did you use to polish the exhaust ports mate?
Edit: What did you use to polish the exhaust ports mate?
Last edited by STI_Baly; 12 July 2010 at 07:15 PM.
12 July 2010, 07:29 PM
#1447
I used to realy enjoy lapping the valves in, just a steady plod and real pride in the finished job. Best part was not having to think about anything, just one two three etc turn on the big old 6 cylinder Mk1/2 Zepher heads.
Good to see that you are back on track with the build Frayz.
Good to see that you are back on track with the build Frayz.
12 July 2010, 10:37 PM
#1448
Lol, Baly,
Using Genuine OEM Subaru seals mate. Ports were cleaned using carbide burrs, 80 and 120 grit flap wheels and drums. Then finished by hand with 320 and P600 paper.
Then I have some mico mops that I used with Autosol.
I have done quite a lot of porting with 2 stroke motors mate. Intakes were left keyed, exhausts are polished.
Using Genuine OEM Subaru seals mate. Ports were cleaned using carbide burrs, 80 and 120 grit flap wheels and drums. Then finished by hand with 320 and P600 paper.
Then I have some mico mops that I used with Autosol.
I have done quite a lot of porting with 2 stroke motors mate. Intakes were left keyed, exhausts are polished.
You can borrow the kit whenever you want to de-swirl fella 
15 July 2010, 01:27 PM
#1455
Frayz, i see you have now modded your signature to capture the turbo lol.
I've also carried out a bit of porting and polishing on other engines, subaru heads recently and use a secret alternative method for polishing the ports. hehe
Not a 100% but are the valve stems on the supertechs not a diff diameter to the standards? hence the need for the supertech stem seals?
Edit: I was tempted to add/repeat what i said on the other forum but as you have already owned up to it taking a lifetime to complete this one i shall bite my tongue.
I've also carried out a bit of porting and polishing on other engines, subaru heads recently and use a secret alternative method for polishing the ports. hehe
Not a 100% but are the valve stems on the supertechs not a diff diameter to the standards? hence the need for the supertech stem seals?
Edit: I was tempted to add/repeat what i said on the other forum but as you have already owned up to it taking a lifetime to complete this one i shall bite my tongue.
Last edited by STI_Baly; 15 July 2010 at 01:42 PM.
15 July 2010, 02:51 PM
#1457
Frayz, i see you have now modded your signature to capture the turbo lol.
I've also carried out a bit of porting and polishing on other engines, subaru heads recently and use a secret alternative method for polishing the ports. hehe
Not a 100% but are the valve stems on the supertechs not a diff diameter to the standards? hence the need for the supertech stem seals?
Edit: I was tempted to add/repeat what i said on the other forum but as you have already owned up to it taking a lifetime to complete this one i shall bite my tongue.
I've also carried out a bit of porting and polishing on other engines, subaru heads recently and use a secret alternative method for polishing the ports. hehe
Not a 100% but are the valve stems on the supertechs not a diff diameter to the standards? hence the need for the supertech stem seals?
Edit: I was tempted to add/repeat what i said on the other forum but as you have already owned up to it taking a lifetime to complete this one i shall bite my tongue.
Its okay mate, im used to taking the stick for it taking ages. I take it all in good fun.
Im yet to mic the stems to be honest but its something that will be done along with measuring the guides to calc the running clearances.
Im sure they will be fine to be honest.
Intersted to know what you use to polish the ports... PM if you feel like telling me
i could be wrong though.
17 July 2010, 03:29 PM
#1462
Baly, some numbers for you...
These were not taken in a controlled environment but as controlled as i can do at home at the moment. These will be measured properly before build in controlled conditions.
All items left to soak for 24 hours, temp at time of measurments was 22deg c.
Measurements taken @ 25mm, 35mm, and 45mm from valve tips.
I just chose cylinder #4 for the test. Stock valves are used with no coatings from a JDM sti8. Supertechs are new-unused with nitride coated intake valves. Exhausts are uncoated inconell.
All measurements in mm.
Stock intake valve
-5.962
-5.962
-5.962
Stock exhaust valves
-5.952
-5.953
-5.954
Supertech intake valves
-5.964
-5.964
-5.964
Supertech exhaust valves
-5.953
-5.954
-5.952
So as you can see theyre identical to OEM spec. As measured only mirons from the stock items.
Hope that helps
Frayz
These were not taken in a controlled environment but as controlled as i can do at home at the moment. These will be measured properly before build in controlled conditions.
All items left to soak for 24 hours, temp at time of measurments was 22deg c.
Measurements taken @ 25mm, 35mm, and 45mm from valve tips.
I just chose cylinder #4 for the test. Stock valves are used with no coatings from a JDM sti8. Supertechs are new-unused with nitride coated intake valves. Exhausts are uncoated inconell.
All measurements in mm.
Stock intake valve
-5.962
-5.962
-5.962
Stock exhaust valves
-5.952
-5.953
-5.954
Supertech intake valves
-5.964
-5.964
-5.964
Supertech exhaust valves
-5.953
-5.954
-5.952
So as you can see theyre identical to OEM spec. As measured only mirons from the stock items.
Hope that helps
Frayz
17 July 2010, 05:50 PM
#1463
Thats spot on for me mate, cheers for doing that it answers a few questions that i had been asking myself lol.
Hows the recovery going? and when have you decided to go back into work?
Plus i didnt see your name on the attendance list for TOTB are you not coming up?
Hows the recovery going? and when have you decided to go back into work?
Plus i didnt see your name on the attendance list for TOTB are you not coming up?
Last edited by STI_Baly; 17 July 2010 at 05:51 PM.
17 July 2010, 07:24 PM
#1464
No worries mate, your welcome.
I wanted to go back to work this monday just gone mate but the docs won't let me yet. I'm hoping to go back in on the 26th.
There's only so much Jeremy Kyle and Loose Women you can take lol.
I'd like to get to TOTB mate but not sure if I'll be able to. I don't even know how to apply for tickets as I haven't looked into it yet.
I wanted to go back to work this monday just gone mate but the docs won't let me yet. I'm hoping to go back in on the 26th.
There's only so much Jeremy Kyle and Loose Women you can take lol.
I'd like to get to TOTB mate but not sure if I'll be able to. I don't even know how to apply for tickets as I haven't looked into it yet.
17 July 2010, 07:24 PM
#1465
No worries mate, your welcome.
I wanted to go back to work this monday just gone mate but the docs won't let me yet. I'm hoping to go back in on the 26th.
There's only so much Jeremy Kyle and Loose Women you can take lol.
I'd like to get to TOTB mate but not sure if I'll be able to. I don't even know how to apply for tickets as I haven't looked into it yet.
I wanted to go back to work this monday just gone mate but the docs won't let me yet. I'm hoping to go back in on the 26th.
There's only so much Jeremy Kyle and Loose Women you can take lol.
I'd like to get to TOTB mate but not sure if I'll be able to. I don't even know how to apply for tickets as I haven't looked into it yet.
21 July 2010, 02:13 PM
#1466
The monster food blender has arrived!
Fully V-banded Tial stainless housing. GT35R .82
Really cant believe how light this is compared to the stock housing turbos. Lets hope it works aswell as it looks. Taking it to Neil @ Thermal Logic on Sat for some pipeage.
Kid in a sweet shop
Fully V-banded Tial stainless housing. GT35R .82
Really cant believe how light this is compared to the stock housing turbos. Lets hope it works aswell as it looks. Taking it to Neil @ Thermal Logic on Sat for some pipeage.
Kid in a sweet shop
21 July 2010, 06:59 PM
#1470
The monster food blender has arrived!
Fully V-banded Tial stainless housing. GT35R .82
Really cant believe how light this is compared to the stock housing turbos. Lets hope it works aswell as it looks. Taking it to Neil @ Thermal Logic on Sat for some pipeage.
Kid in a sweet shop
Fully V-banded Tial stainless housing. GT35R .82
Really cant believe how light this is compared to the stock housing turbos. Lets hope it works aswell as it looks. Taking it to Neil @ Thermal Logic on Sat for some pipeage.
Kid in a sweet shop