home register FAQ memberlist calendar

Go Back   Turbobricks Forums > Mechanical > projects & restorations

Reply
 
Thread Tools Display Modes
Old 11-12-2020, 07:40 PM   #1076
culberro
Ronald Culberbone III
 
culberro's Avatar
 
Join Date: Feb 2010
Location: Portland, OR
Default

The intake manifold looks great!

Good old certibent tables! I’ve been thinking about getting a SWAG finger brake for the HF press. It would be an awesome addition to the shop.
__________________
Cult Person. Pissing in your Kool-Aid.
culberro is offline   Reply With Quote
Old 11-13-2020, 10:45 AM   #1077
Stiggy Pop
Board Member
 
Stiggy Pop's Avatar
 
Join Date: Feb 2011
Location: Granville, MA
Default

Quote:
Originally Posted by Tfrasca View Post

I love those clamps. I kind of stole them from my dad, so they may actually be 50 years old.
yup, mine came from my father in law the traditional passage of the orange clamps I guess.
__________________
'79 242
943 pickup
Stiggy Pop is offline   Reply With Quote
Old 11-13-2020, 11:30 AM   #1078
Tfrasca
Board Member
 
Tfrasca's Avatar
 
Join Date: Apr 2015
Location: Ben Lomond, CA
Default

Quote:
Originally Posted by culberro View Post
The intake manifold looks great!

Good old certibent tables! Iíve been thinking about getting a SWAG finger brake for the HF press. It would be an awesome addition to the shop.
Thanks!

Hopefully we'll be moving in the next 6-12 months and we'll be able to afford somewhere with more shop space. The list of tools I want to buy gets longer everyday.
Tfrasca is offline   Reply With Quote
Old 11-18-2020, 08:29 PM   #1079
Tfrasca
Board Member
 
Tfrasca's Avatar
 
Join Date: Apr 2015
Location: Ben Lomond, CA
Default

Here's a weird idea. I'm running out of room for stuff, and I definitely don't have any room on the short length of tube before the turbo inlet for the bypass valve recirc plumbing. What if I plumbed it back into the air box instead? Would that be basically just the same as venting it to atmosphere? Picture for illustrative purposes:



The small space on the pre-turbo tube is now taken up by a -12 fitting for the eventual PCV setup. Any thoughts on this? Or should I just make my life easier (but. more expensive) and get a Tial blow off valve?
Tfrasca is offline   Reply With Quote
Old 11-18-2020, 09:16 PM   #1080
joel142
Board Member
 
Join Date: May 2003
Location: Seattle, WA
Default

I'd say go with the Tial. I haven't yet regretted trading cash for space or easier in the 142 engine bay.
__________________
'71 142E, M41, Corbeau GT seats, iPd bars and springs, Nardi wheel, GT gauges, overmatched KYB Gas-A-Justs, Canisto wheels, 7" and Series 175 Cibies
'95 T5-R, yellow, M56H swap
joel142 is offline   Reply With Quote
Old 11-18-2020, 09:19 PM   #1081
culberro
Ronald Culberbone III
 
culberro's Avatar
 
Join Date: Feb 2010
Location: Portland, OR
Default

Why not just run the recirc valve (Forge?) to atmosphere?
culberro is offline   Reply With Quote
Old 11-18-2020, 09:33 PM   #1082
Tfrasca
Board Member
 
Tfrasca's Avatar
 
Join Date: Apr 2015
Location: Ben Lomond, CA
Default

I really just don't love the sound of blow off valves vented to atmosphere. But if I plumbed it back into the air box it would probably echo around in there and sound pretty wild anyway. I've heard the Tial one is pretty quiet as far as those things go?

I actually never thought to run the Forge to atmosphere. I like that, because then I could run a 1" hose under the car to muffle it a bit.
Tfrasca is offline   Reply With Quote
Old 11-18-2020, 09:41 PM   #1083
culberro
Ronald Culberbone III
 
culberro's Avatar
 
Join Date: Feb 2010
Location: Portland, OR
Default

It gives you options. I put a 1” K&N filter on one to muffle it a bit.
Do the Tial BOVs fully seal under vacuum? I know some of the Japanese ones are cracked open at idle for some reason.
culberro is offline   Reply With Quote
Old 11-18-2020, 09:42 PM   #1084
2turbotoys
Salaminizer
 
2turbotoys's Avatar
 
Join Date: Nov 2007
Location: Reading pa
Default

Under vacuum the Forge might open a bit and cause an unmetered air leak. I would use a dual port unit if I was going that route.

If you want a cheap option for a blowoff valve, I have an older unused dual port Apexi I would sell very cheap. It has an adjustable outlet to make it louder or quieter, but I think that means it will be a bit loud no matter what. It's also a good bit larger that a Forge.
__________________
Feedback thread https://forums.tbforums.com/showthread.php?t=144924

1978 242, 5.3 L33
1979 242, MS, R brakes
2006 V50 T5 AWD @ 17 PSI
2turbotoys is offline   Reply With Quote
Old 11-18-2020, 09:53 PM   #1085
culberro
Ronald Culberbone III
 
culberro's Avatar
 
Join Date: Feb 2010
Location: Portland, OR
Default

Quote:
Originally Posted by 2turbotoys View Post
Under vacuum the Forge might open a bit and cause an unmetered air leak. I would use a dual port unit if I was going that route.
I haven't experienced a Forge or O32 Recirc valve leak under vacuum. If you wanted to, you could easily shim the spring a bit (or stretch it). It's easy enough to check with a hand vacuum pump...
culberro is offline   Reply With Quote
Old 11-18-2020, 09:57 PM   #1086
2turbotoys
Salaminizer
 
2turbotoys's Avatar
 
Join Date: Nov 2007
Location: Reading pa
Default

Good idea, I know a lot of recirculation valves are a bit open because it doesn't matter when run as intended.
2turbotoys is offline   Reply With Quote
Old 11-18-2020, 11:19 PM   #1087
Tfrasca
Board Member
 
Tfrasca's Avatar
 
Join Date: Apr 2015
Location: Ben Lomond, CA
Default

Quote:
Originally Posted by 2turbotoys View Post
Under vacuum the Forge might open a bit and cause an unmetered air leak. I would use a dual port unit if I was going that route.

If you want a cheap option for a blowoff valve, I have an older unused dual port Apexi I would sell very cheap. It has an adjustable outlet to make it louder or quieter, but I think that means it will be a bit loud no matter what. It's also a good bit larger that a Forge.
If I am using an ECU running MAP, with no MAF, is the air leak even an issue?

I think I'll try to save some money for once in my life and just use the Forge that I have. Thanks for the offer on the Apexi though.
Tfrasca is offline   Reply With Quote
Old 11-18-2020, 11:27 PM   #1088
2turbotoys
Salaminizer
 
2turbotoys's Avatar
 
Join Date: Nov 2007
Location: Reading pa
Default

It won't cause a running issue with a MAP, if it doesn't show up on a wideband it should be all good.

Nice work on the intake!
2turbotoys is offline   Reply With Quote
Old 11-18-2020, 11:31 PM   #1089
Harlard
Hurlurd?Harland?Bueller?
 
Harlard's Avatar
 
Join Date: May 2007
Location: PDX
Default

Quote:
Originally Posted by culberro View Post
It gives you options. I put a 1Ē K&N filter on one to muffle it a bit.
Do the Tial BOVs fully seal under vacuum? I know some of the Japanese ones are cracked open at idle for some reason.
That's what I have done with mine. It's silent. Running it backwards makes it sound like an SSQV, which is fun.
__________________


Herr Harlard am Erstens

1979 242 DL

Quote:
Originally Posted by t8fanning View Post
My knob has a big chunk of steel on it
Harlard is offline   Reply With Quote
Old 12-06-2020, 10:18 PM   #1090
Tfrasca
Board Member
 
Tfrasca's Avatar
 
Join Date: Apr 2015
Location: Ben Lomond, CA
Default

I spent a lot of time thinking about how deal with boost control to my dual wastegates, and I think I got it. Obviously silicone or rubber hose isn't going to hold up on the rear wastegate, so I daisy chained them together with stainless hardline. Then I can just run the boost controller to the front one, which is out of the danger zone.

So I ordered m10 banjo to 4an adapters, then planned on using 4an to 1/4" tube adapters. All that stuff took up way too much room, so I did this:



I drilled out the 4an banjo fittings to 1/4", so I could slip the stainless tube straight into the banjo. I connected the tops and bottoms of the wastegates, so I can just plumb the top and bottom of the front one to my boost controller (probably a 3-port solenoid controlled by whatever ECU I choose). Pretty pleased with how this came out.





Now I need to figure out how to attach the tube to the banjos. My first thought was to TIG them, which I think would work. Just might be pretty fussy with such a small diameter tube. I'm currently thinking about silver brazing them. Any thoughts on which method would hold up to the heat and vibes?
Tfrasca is offline   Reply With Quote
Old 12-06-2020, 11:45 PM   #1091
Harlard
Hurlurd?Harland?Bueller?
 
Harlard's Avatar
 
Join Date: May 2007
Location: PDX
Default

This level of neatness and order is so far beyond me...
Harlard is offline   Reply With Quote
Old 12-07-2020, 12:50 AM   #1092
Tfrasca
Board Member
 
Tfrasca's Avatar
 
Join Date: Apr 2015
Location: Ben Lomond, CA
Default

Quote:
Originally Posted by Harlard View Post
This level of neatness and order is so far beyond me...
Itís easy when you accept that the car will never run.
Tfrasca is offline   Reply With Quote
Old 12-07-2020, 01:03 AM   #1093
LC4CARL
Aero challenged
 
LC4CARL's Avatar
 
Join Date: Sep 2008
Location: Vancouver, WA
Default

Holy moly.
__________________


@PDXvolvo on IG
B21FT with a T3/T4, STS coil-overs, T5 trans.
LC4CARL is offline   Reply With Quote
Old 12-07-2020, 04:08 AM   #1094
RvolvoR
Board Member
 
Join Date: Jun 2003
Location: PDX
Default

tube nuts/sleeves in stainless and flare the tube...
RvolvoR is offline   Reply With Quote
Old 12-07-2020, 04:10 AM   #1095
Alex Buchka
8 cylinders
 
Alex Buchka's Avatar
 
Join Date: Apr 2004
Location: Los Angeles
Default

Looking sharp! I would probably just get a two or three tacks on each fitting in situ, then weld them up. Just start off low, like 20 amps, and work your way around. .045 or even thinner diameter filler is the trick for small parts like that.
Alex Buchka is offline   Reply With Quote
Old 12-07-2020, 11:30 AM   #1096
Tfrasca
Board Member
 
Tfrasca's Avatar
 
Join Date: Apr 2015
Location: Ben Lomond, CA
Default

Quote:
Originally Posted by RvolvoR View Post
tube nuts/sleeves in stainless and flare the tube...
Tube nuts take up too much space.
Tfrasca is offline   Reply With Quote
Old 12-07-2020, 11:30 AM   #1097
Tfrasca
Board Member
 
Tfrasca's Avatar
 
Join Date: Apr 2015
Location: Ben Lomond, CA
Default

Quote:
Originally Posted by Alex Buchka View Post
Looking sharp! I would probably just get a two or three tacks on each fitting in situ, then weld them up. Just start off low, like 20 amps, and work your way around. .045 or even thinner diameter filler is the trick for small parts like that.
Thatís encouraging. I have some .045 so Iíll see how it goes.
Tfrasca is offline   Reply With Quote
Old 12-07-2020, 12:16 PM   #1098
RvolvoR
Board Member
 
Join Date: Jun 2003
Location: PDX
Default

Quote:
Originally Posted by Tfrasca View Post
Tube nuts take up too much space.
if those are m10 to-3 or -4 banjos, then tube nuts shouldn't take up any more space than what already has been...
RvolvoR is offline   Reply With Quote
Old 12-07-2020, 12:19 PM   #1099
Tfrasca
Board Member
 
Tfrasca's Avatar
 
Join Date: Apr 2015
Location: Ben Lomond, CA
Default

Quote:
Originally Posted by RvolvoR View Post
if those are m10 to-3 or -4 banjos, then tube nuts shouldn't take up any more space than what already has been...
Oh I didnít read your post carefully. If I had a flare tool that could do stainless, maybe that would have been the move. And if I got a decent tool, Iíd still have to bend new lines because the banjos are too close to the body of the wastegate. But I have a welder, so Iíll just use that.
Tfrasca is offline   Reply With Quote
Old 12-07-2020, 01:16 PM   #1100
RvolvoR
Board Member
 
Join Date: Jun 2003
Location: PDX
Default

Quote:
Originally Posted by Tfrasca View Post
Oh I didnít read your post carefully. If I had a flare tool that could do stainless, maybe that would have been the move. And if I got a decent tool, Iíd still have to bend new lines because the banjos are too close to the body of the wastegate. But I have a welder, so Iíll just use that.
whelp, if you have any plans to redo brake lines or do hardline fuel lines...the mastercool flare tool is boss and does stainless like butter.
RvolvoR is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


All times are GMT -4. The time now is 03:53 AM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.