GT40s.com
MK-I  MK-II  MK-III  MK-IV  GULF  MIRAGE  J-CAR  LOLA
GT40s.com
Home Forum Gallery Support GT40s.com  
Register FAQ Advertisers Search Today's Posts Mark Forums Read

Go Back   GT40s.com > >

Notices

RCR Forum - RCR40/SLC/917/Superlite Aero Sponsored by Race Car Replicas.

Reply
 
Thread Tools Display Modes
Old 7th January 2011, 02:54 PM   #61
VRSW's Avatar
VRSW
Rookie
United States
 
Join Date: Jun 2010
Location: Iowa
GT40: none
Posts: 91
Re: SLC exhaust options

Ok....I have paid for official Vendor status here, so I guess I will let you in on the plan. I am currently taking orders for the headers to fit the SL-C. They will look very similar to the ones shown above that I sell for the GTM. They are all Stainless Steel construction with 1-7/8" primaries and 3" collectors. The price for the headers will be $1059 to fit all LS engines, and $1184 if you want them equipped with an LS7 exhaust flange that matches the LS7 exhaust port shape. I can also have them ceramic coated for an additional cost.

Kooks runs these exhaust systems for me in batches, since this is a very low volume product, so I normally take orders for them until I reach my batch size (ten orders) and then turn the 10 orders in to Kooks. I will try to keep some in stock and on hand, but I can not guarantee that I will always have them in stock, so it would be best to plan ahead if you think you'll need them anytime in the next few months.

I have an order that I just turned in to Kooks this week. I can probably add to that order until the end of next week, so if you'd like to order, now would be the time. You can email me if you're interested in ordering at vraptor "at" midlands "dot" net

I also want to add that as soon as Kooks gets this first batch of them done, one set is being shipped to Fran so that he can come up with what will hopefully be a template for a "Universal" complete exhaust system for the SL-C (with LS engine) and I will be able to take the orders for those. Thanks guys!
VRSW is offline   Reply With Quote
Old 7th January 2011, 05:33 PM   #62
molleur's Avatar
molleur
Bronze Supporter
United States
 
Join Date: Mar 2008
Location: Florida
GT40: SL-C LS1/930LSD
Posts: 7,084
Re: SLC exhaust options

Cool Shane, welcome aboard with your vendor status!
molleur is offline   Reply With Quote
Old 7th January 2011, 09:35 PM   #63
Fran Hall RCR
Moderator
gt40fran's Avatar
gt40fran
I Have No Life
United States
 
Join Date: Sep 2001
Location: Michigan
GT40: RCR
Posts: 7,732
Re: SLC exhaust options

If you can get kooks to make 2 " headers that would be quite the exercise...having seen the shape and space available
__________________
FRAN HALL replica manufacturer.....

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
gt40fran is offline   Reply With Quote
Old 7th January 2011, 10:23 PM   #64
VRSW's Avatar
VRSW
Rookie
United States
 
Join Date: Jun 2010
Location: Iowa
GT40: none
Posts: 91
Re: SLC exhaust options

Agreed! They haven't given me a yes or no just yet on the 2". I talked to them about 2 hours ago and he said they would get the fixture out on Monday to see if there's any possibility of it happening.
VRSW is offline   Reply With Quote
Old 8th January 2011, 04:14 AM   #65
OC_'s Avatar
OC_
9 Tenths
United States
 
Join Date: Jul 2006
Location: Chicago, IL
Posts: 988
Re: SLC exhaust options

Fran, I recall you saying that your 962 chassis is based off of SL-C; is the exhaust on that going to be as tight as the SL-C?
__________________
My new Blog: http://automotivethinker.com
OC_ is offline   Reply With Quote
Old 8th January 2011, 08:43 AM   #66
Fran Hall RCR
Moderator
gt40fran's Avatar
gt40fran
I Have No Life
United States
 
Join Date: Sep 2001
Location: Michigan
GT40: RCR
Posts: 7,732
Re: SLC exhaust options

Its only based off the SL-C chassis in concept.....
the SLC chassis is much wider in the cockpit that a 962...and the 962 has a longer wheelbase also...

There is actually plenty of room in the SL-C for exhaust routing..its all dependent upon your choice of engine and accessories...
Mine run straight out infront of the rear wheels, simple and easy...
Shanes design was already mostly done and hence the need to only tweek it to work..my space available comment refered to Kooks existing weld jig/fixture...
__________________
FRAN HALL replica manufacturer.....

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

Last edited by gt40fran; 8th January 2011 at 09:39 AM.
gt40fran is offline   Reply With Quote
Old 10th January 2011, 03:27 PM   #67
Howard Jones's Avatar
Howard Jones
Gold Supporter
United States
 
Join Date: Jun 2002
Location: N Braunfels TX
GT40: GTD
Posts: 4,024
Re: SLC exhaust options

Here is a very good practical article on header design.

Auto Exhaust Science
Howard Jones is offline   Reply With Quote
Old 10th January 2011, 04:15 PM   #68
CANTDRIVE55's Avatar
CANTDRIVE55
10 tenths
United States
 
Join Date: Jun 2008
Location: Lone Oak,TX
GT40: SLC/LS7/Ricardo
Posts: 1,392
Re: SLC exhaust options

Howard,

Thanks for finding that article. I thought I had a copy saved before and wanted to post in this thread, but I couldn't find mine!
__________________
Doc Kaler
SL-C, MachineWorks LS7, Ricardo
CANTDRIVE55 is offline   Reply With Quote
Old 17th May 2017, 05:36 PM   #69
InfiniteReality's Avatar
InfiniteReality
2 Tenths
United States
 
Join Date: Jun 2015
Location: Louisiana
GT40: Superlite SLC
Posts: 224
Re: SLC exhaust options

Instead of starting a new thread, figured I'd revive this one to post this question. I've searched and come up with no information about anyone using these instead of the LS7 manifold. Im sure there's a reason no one had used them before, but figured it was worth asking. Soooooo... any chance of them possibly fitting on side exit exhaust setup?

Access Denied
__________________
SLC LS3/Graz ∆ Corvette C5 Z51 ∆ Gen2 Hayabusa
InfiniteReality is offline   Reply With Quote
Old 17th May 2017, 05:58 PM   #70
sswartz's Avatar
sswartz
Lifetime Premier Supporter
United States
 
Join Date: Mar 2015
Location: Boston
GT40: SLC/LS7/Ricardo
Posts: 226
Re: SLC exhaust options

Del, I can't comment on those, but I had my engine built by Brian Thompson and when I asked him about custom headers he said that he could make me a set and take my money, but that there would be absolutely zero performance improvement. Apparently, the LS7 manifold is well engineered and has individual tubes inside. He's aware that some people have made gains when they switched, but that was because they changed something else (i.e., removed the cats). He's done lots of R&D type of stuff on LS motors and he knows what he's talking about. So going with headers provides no performance gain and you will have more heat and less space. The LS7 manifolds look really nice ceramic coated and that's my plan...
sswartz is offline   Reply With Quote
Old 17th May 2017, 06:03 PM   #71
InfiniteReality's Avatar
InfiniteReality
2 Tenths
United States
 
Join Date: Jun 2015
Location: Louisiana
GT40: Superlite SLC
Posts: 224
Re: SLC exhaust options

I've already read how well engineered they are too. I just happen to come across these while I'm thinking about my exhaust and started to wonder. The only downside to these seems to be what kind of quality they actually are, well that and heat I'm sure.
__________________
SLC LS3/Graz ∆ Corvette C5 Z51 ∆ Gen2 Hayabusa
InfiniteReality is offline   Reply With Quote
Old 3rd January 2018, 03:05 PM   #72
roger reid
Bronze Supporter
United States
 
Join Date: Dec 2010
Location: USA
Posts: 20
Re: SLC exhaust options

I have a set of LS7 headers with the mating ls7 lower flange. Has everyone here been using stainless tubing bends for material compatibility or should I have a set of mild steel flanges made. any good sources for the tubing bends?
__________________
SL-C on order
roger reid is offline   Reply With Quote
Old 3rd January 2018, 04:09 PM   #73
molleur's Avatar
molleur
Bronze Supporter
United States
 
Join Date: Mar 2008
Location: Florida
GT40: SL-C LS1/930LSD
Posts: 7,084
Re: SLC exhaust options

I have had great luck here:
Columbia River Mandrel Bending

Use stainless. They have the cones you'll use as well.
__________________
Happily deplorable!

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
molleur is offline   Reply With Quote
Old 3rd January 2018, 05:32 PM   #74
Frank833's Avatar
Frank833
Silver Supporter
United States
 
Join Date: Jul 2013
Location: Fairview, TX
GT40: SLC LS7/Graz
Posts: 216
Re: SLC exhaust options

I find stainless easier to work with (weld), and it holds up better over time (no rust). You do have to backfill while welding and be sure not to use too much heat, but those are straight forward.

When I used the LS7 manifolds, I got two cast SS elbows, split them in half to make the outside of the oval, filled the middle with triangle shaped flats so coming out the side it was round. Took a bit of cutting/grinding/filler, but the transition to round was reasonable. That was for side exhaust. Many ways to skin that cat.

I've used Columbia River before, but latest order they shot back and said it would be 6 weeks... Cancelled that and had some guy in CA cut the same parts one off. Showed up in a week for the same price! But, they generally have good selection and prices.

Used stainlessheaders.com this week for stuff for my new set of headers.
Frank833 is offline   Reply With Quote
Old 5th January 2018, 02:12 AM   #75
MarkB
Bronze Supporter
United States
 
Join Date: Sep 2013
Location: Redmond, WA
GT40: None
Posts: 118
Re: SLC exhaust options

Frank, one of your previous posts inspired me to do something very similar, but to the rear instead of side. I picked up a 3" 304 SS U-bend off ebay, sectioned it, and filled in the triangle sections with 304ss sheet. I was able to integrate the 45-degree bend up to go over the axles and added v-band clamps. They have much more clearance below the header than if I had used the stock flange and bolted up a bend to it. My TIG skills aren't pretty, but they're back-purged and strong
Thanks for the inspiration!
I haven't finished the rest of the pipes yet, but here are pics of the headers.
Attached Thumbnails
SLC exhaust options-20161119_100800-jpg   SLC exhaust options-20161119_145102-jpg   SLC exhaust options-20161211_181604-jpg   SLC exhaust options-20170131_073352-jpg  
MarkB is offline   Reply With Quote
Old 5th January 2018, 11:42 AM   #76
Fran Hall RCR
Moderator
gt40fran's Avatar
gt40fran
I Have No Life
United States
 
Join Date: Sep 2001
Location: Michigan
GT40: RCR
Posts: 7,732
Re: SLC exhaust options

That's very similar to how we do them here at the shop too....quite a lot of work but the results work well.
__________________
FRAN HALL replica manufacturer.....

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
gt40fran is offline   Reply With Quote
Old 5th January 2018, 01:09 PM   #77
roger reid
Bronze Supporter
United States
 
Join Date: Dec 2010
Location: USA
Posts: 20
Re: SLC exhaust options

Quote:
Originally Posted by MarkB View Post
Frank, one of your previous posts inspired me to do something very similar, but to the rear instead of side. I picked up a 3" 304 SS U-bend off ebay, sectioned it, and filled in the triangle sections with 304ss sheet. I was able to integrate the 45-degree bend up to go over the axles and added v-band clamps. They have much more clearance below the header than if I had used the stock flange and bolted up a bend to it. My TIG skills aren't pretty, but they're back-purged and strong
Thanks for the inspiration!
I haven't finished the rest of the pipes yet, but here are pics of the headers.
Mark and Frank. I like what you have done. What is the best way to remove the flange from the header?
__________________
SL-C on order
roger reid is offline   Reply With Quote
Old 6th January 2018, 12:48 AM   #78
MarkB
Bronze Supporter
United States
 
Join Date: Sep 2013
Location: Redmond, WA
GT40: None
Posts: 118
Re: SLC exhaust options

I just used a 12" cutoff wheel on my miter saw. Lot of sparks, but zipped through it pretty easily. Then cleaned the flash up with a die grinder.
MarkB is offline   Reply With Quote
Old 8th January 2018, 03:33 PM   #79
Frank833's Avatar
Frank833
Silver Supporter
United States
 
Join Date: Jul 2013
Location: Fairview, TX
GT40: SLC LS7/Graz
Posts: 216
Re: SLC exhaust options

Mark,

Thanks!

Roger,

I use an angle grinder for almost everything. Have a 12” cutoff and a smaller “miter” type saw for metal. But I have LOTS of practice with the hand held.

Use whatever tool you have and are comfortable with.
Frank833 is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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

Similar Threads
Thread Thread Starter Forum Replies Last Post
LS3 options Craig7L GT40 Tech - Engines/Induction/Exhaust 2 14th August 2008 11:36 AM
RF options Bob Peckham All GT40 9 23rd February 2005 05:03 PM
RF options Pantera1889 All GT40 6 10th February 2005 10:16 PM
Canards and other options Knighton GT40 Tech - Exterior, Interior, AC, & Trim 27 11th November 2003 08:06 PM
body options SCOTT CAREY All GT40 5 24th July 2002 02:35 PM


All times are GMT -4. The time now is 06:16 PM.