home register FAQ memberlist calendar

Go Back   Turbobricks Forums > Mechanical > maintenance & nonperformance

Reply
 
Thread Tools Display Modes
Old 05-01-2017, 09:13 PM   #51
sksmith
Board Member
 
sksmith's Avatar
 
Join Date: Nov 2007
Location: Back in St. Louis, MO
Default

Luck of thre Irish, JohnMc!!
sksmith is offline   Reply With Quote
Old 05-14-2017, 11:32 AM   #52
blackbird939
Board Member
 
blackbird939's Avatar
 
Join Date: Sep 2015
Location: Orlando
Thumbs up Update

Welp.. I THINK I got it. Exhaust leak. Can't be 100% sure yet. Ordered a ceramic coated patriot 4->1 from IPD. Reassembled head. New gaskets, etc. Fired up today. The patriot is still leaking from one of the 4 ports, can't nail it down just yet. BUT.. the stethoscope is showing no tapping from the head. Maybe I am just lucky and soon it will resume the tapping. But for the moment, it's looking good. The car is much zippier throttle response with the Patriot. That old cast iron thing was cracked almost in half.

One thing about the Patriot. The dual SU manifold did not fit up perfectly. Had to notch out the exhaust flange a bit. Not too bad. And the Patriot is making ever-so-slight contact with the oil filter. Not thrilled about it, but maybe I can clear it with a different filter make.

More later after first test drive.
__________________
Michael K.

1940 Zündapp KS 600
1942 Zündapp KS 750
1943 VW Typ 82
1967 Honda S90
1972 Volvo 144E
1973 Volvo P1800ES (sold)
1975 Volvo C303 TGBII
1977 Volvo 242 DL (gone but not forgotten)
blackbird939 is offline   Reply With Quote
Old 05-15-2017, 12:11 PM   #53
matt b
Board Member
 
Join Date: Apr 2007
Location: Tucson
Default

Quote:
Originally Posted by blackbird939 View Post
Welp.. I THINK I got it. Exhaust leak. Can't be 100% sure yet. Ordered a ceramic coated patriot 4->1 from IPD. Reassembled head. New gaskets, etc. Fired up today. The patriot is still leaking from one of the 4 ports, can't nail it down just yet. BUT.. the stethoscope is showing no tapping from the head. Maybe I am just lucky and soon it will resume the tapping. But for the moment, it's looking good. The car is much zippier throttle response with the Patriot. That old cast iron thing was cracked almost in half.

One thing about the Patriot. The dual SU manifold did not fit up perfectly. Had to notch out the exhaust flange a bit. Not too bad. And the Patriot is making ever-so-slight contact with the oil filter. Not thrilled about it, but maybe I can clear it with a different filter make.

More later after first test drive.
I can send you the P/N's needed to do a remote filter set up, all my parts came from Summit and Jegs. The 4>1 thing is great but fitment is approximate, at best. I remember having to grind, bend and cuss a lot to make it fit on my old B18 and then this B20. But it does help with performance, no doubt.
__________________
matt b is offline   Reply With Quote
Old 05-15-2017, 01:52 PM   #54
JohnMc
PV Abuser
 
JohnMc's Avatar
 
Join Date: May 2004
Location: St. Louis
Default

Take a ball peen hammer to the header and clearance it as needed.

Don't worry about any performance loss, it's apparently an old wive's tail:
https://www.youtube.com/watch?v=azPKIjxmmdU

(Using a dyno and an SBC to see how much minor 'clearancing' on a header affects HP. They progressively bash the headers more and more with repeated dyno pulls)
__________________
'63 PV Rat Rod
'93 245 16VT Classic #1141
JohnMc is online now   Reply With Quote
Old 05-15-2017, 01:58 PM   #55
blackbird939
Board Member
 
blackbird939's Avatar
 
Join Date: Sep 2015
Location: Orlando
Default

Quote:
Originally Posted by JohnMc View Post
Take a ball peen hammer to the header and clearance it as needed.

Don't worry about any performance loss, it's apparently an old wive's tail:
https://www.youtube.com/watch?v=azPKIjxmmdU

(Using a dyno and an SBC to see how much minor 'clearancing' on a header affects HP. They progressively bash the headers more and more with repeated dyno pulls)
Haha.. wow. Turns out they lost 0.25 HP? I might actually do that.. Just ding it a tiny bit right there. It's probably 1MM-2MM of interference.
blackbird939 is offline   Reply With Quote
Old 05-15-2017, 02:36 PM   #56
gsellstr
Vintage anti-ricer
 
gsellstr's Avatar
 
Join Date: Oct 2004
Location: Somewhere in a northern California smog bank
Default

Thanks for posting that one John...I was about to go digging for it, awesome episode.
__________________
RIP
Doug Williams aka Mr. Doug 4/15/2009
Pete Fluitman aka fivehundred 7/14/2013
Mick Starkey aka TrickMick 1/10/14

74 144 B20
http://forums.turbobricks.com/showthread.php?t=224983

90 745Ti, AW71L, IPD bars/springs, Koni SA's, JVAB B230FT, IPD Turbo cam, GT2871R @ 18psi, TLAO chips, E85, NPR, 3.5" DP, 3" DP-back, MSD, TruTrac, Wilwood BBK

If you need Superpro bushings PM me for price and availability!
gsellstr is offline   Reply With Quote
Old 05-15-2017, 04:43 PM   #57
matt b
Board Member
 
Join Date: Apr 2007
Location: Tucson
Default

Mine fell off a shelf and has a dent in it. I added HP without knowing it!!
matt b 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 10:17 AM.

Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2017, vBulletin Solutions, Inc.