LT5 Assembly Project - Page 33 - ZR-1 Net Registry Forums

LGAFF · 04-23-2011

Got the rough stuff all done on the IHs and plenum

As you can tell, I am short on room here is my porting area:

I use a fire place hearth $15 and some bungee cord to hold down the IH:

Plenum roughed out:

LGAFF · 04-24-2011

Opened up the plenum more today, and flap wheeled them....need to smooth the dividers some, but pretty much done beside clean up...

LGAFF · 04-25-2011

As I port these I can't help but wonder if we would not benefit from coating the exterior of the runners that are adjacent to coolant with some sort of coating to reduce the temp. I asked Marc H this question and he agreed that the runners for #1 and #2 would be higher in temp than others in the back of the plenum.

The most effective would be zirconium Oxide, but at $60 per can, not sure its worth it. Does anone know if VHT flameproof actually contains heat or is it really just paint that won't peel from high temp exposure.

Any other ideas would be great.

I did verify with Marc that the Inj is too far down the runner to need more hear to atomize fuel.

Blue Flame Restorations · 04-25-2011

Lee, I used to use a product from the electrical supply. It's in a spray, burnt orange in color and is an insulating material. Can't think of the name at the moment. The circle track guys use it for flow. About $20 a can.

Polo-1 · 04-25-2011

Glyptal paint.

Not sure how it work for insulating temp. I would think more of a Ceramic type.

LGAFF · 05-01-2011

When I bought these heads they were ported, however the primary was much smaller the secondary ports....I opened those up today

Locobob · 05-01-2011

Quote:

Originally Posted by LGAFF

When I bought these heads they were ported, however the primary was much smaller the secondary ports....I opened those up today

Those should move some air!

LGAFF · 05-18-2011

The IH is far from a straight shot in, port matched these: PITA....waiting on response from Total Seal, sent them my rings to look at.

Need to wash these out, so they are alittle dirty

LGAFF · 06-05-2011

Spring install:

LGAFF · 06-11-2011

Sounds suck, but here is a liner pull:

04-23-2011	#321
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,194	Re: LT5 Assembly Project Got the rough stuff all done on the IHs and plenum As you can tell, I am short on room here is my porting area: I use a fire place hearth $15 and some bungee cord to hold down the IH: Plenum roughed out: __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359

04-24-2011	#322
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,194	CRAZY 8s Opened up the plenum more today, and flap wheeled them....need to smooth the dividers some, but pretty much done beside clean up... __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359

04-25-2011	#323
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,194	Re: LT5 Assembly Project As I port these I can't help but wonder if we would not benefit from coating the exterior of the runners that are adjacent to coolant with some sort of coating to reduce the temp. I asked Marc H this question and he agreed that the runners for #1 and #2 would be higher in temp than others in the back of the plenum. The most effective would be zirconium Oxide, but at $60 per can, not sure its worth it. Does anone know if VHT flameproof actually contains heat or is it really just paint that won't peel from high temp exposure. Any other ideas would be great. I did verify with Marc that the Inj is too far down the runner to need more hear to atomize fuel. __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359

04-25-2011	#324
Blue Flame Restorations Join Date: Feb 2010 Location: Pendleton, IN Posts: 3,904	Re: LT5 Assembly Project Lee, I used to use a product from the electrical supply. It's in a spray, burnt orange in color and is an insulating material. Can't think of the name at the moment. The circle track guys use it for flow. About $20 a can. __________________ 1988 KOH Prototype EX5023 sold 1990 ZR-1 #444 Convertible 1990 ZR-1 Black #966 1991 ZR-1 Quazar Blue #296 1957 Duntov SS Project Last edited by Blue Flame Restorations; 04-26-2011 at 08:17 AM.

04-25-2011	#325
Polo-1 Join Date: Sep 2005 Location: Washington Posts: 955	Re: LT5 Assembly Project Glyptal paint. Not sure how it work for insulating temp. I would think more of a Ceramic type.

05-01-2011	#326
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,194	Re: LT5 Assembly Project When I bought these heads they were ported, however the primary was much smaller the secondary ports....I opened those up today __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359

05-18-2011	#328
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,194	Re: LT5 Assembly Project The IH is far from a straight shot in, port matched these: PITA....waiting on response from Total Seal, sent them my rings to look at. Need to wash these out, so they are alittle dirty __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359

06-05-2011	#329
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,194	Re: LT5 Assembly Project Spring install: __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359

06-11-2011	#330
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,194	Re: LT5 Assembly Project Sounds suck, but here is a liner pull: __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359