Raptor Forum banner

81 - 100 of 137 Posts

·
I may be getting older, but I refuse to grow up!
Joined
·
11,187 Posts
Off to the machine shop with my cylinder now. Does anyone know how far down to the bottom of the cylinder the piston rings travel when installed? There are a couple small scratches at the bottom end of this cylinder. Top most scratch is 1&3/8” high off the bottom. That should be fine right, the rings won’t ever travel that low?
I don't recall how far the piston goes but I don't think it goes past the bottom of the cylinder. That means the rings are at the top of the piston "X" amount.
Check with your machinist. If it doesn't work out for you, let me know for a return.
 

·
Registered
Joined
·
795 Posts
Discussion Starter #82
While I’m waiting for other parts to arrive in the mail, I’ve been looking at skids. I’m debating between the black poly skid for $100 @1/2” thick or the silver aluminum one for $80 @.125” thick.
Anyone want to weigh in? I like the black, but it looks bulky. The aluminum one weighs 7lbs.


 

·
Registered
Joined
·
354 Posts
I believe when I was looking at them I found poly in 1/2", 3/8" and 1/4" from different brands. If you will never ride areas with rocks the thinner one will work and save a some weight. If I was worried about rocks and protection get the 1/2" DRW. The extra weight of a skid plate is carried at the lowest point on the frame, I don't think you will notice it.
 

·
Super Moderator
Joined
·
8,072 Posts
I have the GYTR and it does provide solid protection.
 
  • Like
Reactions: Sixpack577

·
Registered
Joined
·
795 Posts
Discussion Starter #86
I have the GYTR and it does provide solid protection.
Thanks for the tip. Those wings on the side work alright with nerf bars? I’m leaning toward TM Designs poly skid just for the black color. They have the wings too and the guys said I may need to chop em off.
 

·
Registered
Joined
·
626 Posts
Thanks for the tip. Those wings on the side work alright with nerf bars? I’m leaning toward TM Designs poly skid just for the black color. They have the wings too and the guys said I may need to chop em off.
Cool, got any pictures?
I have only seen flat skid plates made from composite.
I prefer black too.
 

·
Registered
Joined
·
81 Posts
I have the gytr and had to notch the wings on both sides for the Tusk nerf bars. I like how the fasteners are recessed in it too. I saw some skidplates where they weren't and was worried the would get sheared off.
 

·
Super Moderator
Joined
·
8,072 Posts
Thanks for the tip. Those wings on the side work alright with nerf bars? I’m leaning toward TM Designs poly skid just for the black color. They have the wings too and the guys said I may need to chop em off.
I have no issues with the Nerf bars and the skid conflicting.
 

·
Registered
Joined
·
795 Posts
Discussion Starter #90
Interesting alright thanks for the info. I can pull a stock photo but I will take some pics of the skid when I get it too.
It looks like the blue one is for a different model judging by the oil drain cutouts. Black one looks about right.


upload image
 
  • Like
Reactions: Sixpack577

·
Registered
Joined
·
795 Posts
Discussion Starter #91
Got my new cylinder in yesterday, going to gap the rings today and see if I can get the piston installed after work.
Can anyone tell me what to gap the rings at for an 11:1 cp? I’ve read .020 on first and second ring, but not sure entirely. I know CP gave me a sheet with their specs but I want to see what you veterans have been doing reliably.
 

·
Registered
Joined
·
354 Posts
I try for .018 to .020 for the top ring and .022 to .024 for the second ring. You will be fine at .020 for each ring unless you have nitrous, turbo...
Too tight is bad, when ring gap goes to zero, you wipe out the cylinder and piston.
 

·
Registered
Joined
·
795 Posts
Discussion Starter #93
True. Thank you for confirmation.
 

·
Registered
Joined
·
795 Posts
Discussion Starter #94
Well, check out these shenanigans -

Had a muffler shop do my O2 bung and the guy completely botched the job. Porosity all over, bottom of threads thrashed, weld looks like a pile of...yeah. At least the sensor I have threads all the way in and seals tight.






SOOOO after that fiasco I headed up to my union hall this morning to get with our shop weld instructor and certifier to ask for his help in the matter.
He’s pretty stoic, so he took the exhaust, silently looked it over for about 10 seconds, peered up over the top of his glasses and asked, “You payed for this?” Pretty embarrassing lol.
He said the guy clearly carbon arc’d the stainless, which is the worst move you could possibly make on stainless, so he ground out what he could and covered it with some 308. Being a union welder he was so irritated the whole time at the scab trash that some shops produce.
Here’s the final product. No more porosity. Had it done in about 5 minutes.


 
  • Like
Reactions: DEZPERADO

·
Registered
Joined
·
354 Posts
It looked like my wife welded it, before you had it welded again. That guy should have been embarrassed and apologized and gave your money back. I would have cut the hole myself and TIG welded it. Welding takes time and experience to get good at it, especial with different metals. Did you look inside the pipe to ensure it was clean, meaning nothing hanging down to interfere with airflow.
 

·
I may be getting older, but I refuse to grow up!
Joined
·
11,187 Posts
edit
 

·
I may be getting older, but I refuse to grow up!
Joined
·
11,187 Posts
It looked like my wife welded it, before you had it welded again. That guy should have been embarrassed and apologized and gave your money back. I would have cut the hole myself and TIG welded it. Welding takes time and experience to get good at it, especial with different metals.
I thought the same, except my wife can lay a pretty good bead. My thought too was how much did he pay you for gobbing up the pipe.
 

·
Registered
Joined
·
795 Posts
Discussion Starter #98
Yeah I looked at it at the shop and he said, “So I had like a half hour into it, so uh, how about 40 bucks?” I just looked at him and looked at the weld and said...ok. Won’t be going back anytime soon. Left a review on his business’ yelp page. Dude was the owner too, late 60s, super crabby the whole time. Wasn’t going to argue with him, and sure as heck wasn’t going to ask him to fix it.
Nothing hanging down inside either, thankfully.
All is well now at least. Well, except I’m out 40 bucks ?
 

·
Registered
Joined
·
354 Posts
Glad you got it sorted out in the end. Most muffler shops are not know for their welding skills. I would suggest a race car shop, that puts in cages and builds chassis or someone who builds headers for race cars.
 

·
Registered
Joined
·
795 Posts
Discussion Starter #100
Megladon port +2/+1 with bored TB by Bo White. Rocker is a CNC clearanced Racers Edge rocker arm too. 50/50 cam installed.







man images free
 
81 - 100 of 137 Posts
Top