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Message started by Redryder652 on 10/28/16 at 20:26:44

Title: Straight pipe? Baffle?
Post by Redryder652 on 10/28/16 at 20:26:44

I understand this is my third post in about the past 24 hours ( I hope I aint gettin on anyones nerves) and I also understand straight pipeing a savage is a very bad idea and I would never do it. Too loud.

However, I just purchased a Mac performance exhaust, and it is a full pipe with the head pipe.

My concern is its basically a straight pipe with about a 10 inch baffle at the rear wheel, the perforated type with the metal bent as flaps going in towards the middle.

Would something like this offer enough backpressure? Would I kill my precious savage even with the right jets and tuning?

P.s. everything else is stock, except for the cam chain tensioner and the white spacer mod

Title: Re: Straight pipe? Baffle?
Post by Redryder652 on 10/28/16 at 20:27:44

Here is the exhaust

Title: Re: Straight pipe? Baffle?
Post by Redryder652 on 10/28/16 at 20:37:07

Here is a baffle alike.

Title: Re: Straight pipe? Baffle?
Post by Redryder652 on 10/28/16 at 21:27:55

3D3E2B323E316B675F0 wrote:

You already bought it and now your asking! Well the guys with HIGH performance motors should chime in here ,but I'm thinking a 2inch header pipe is WAY to big for a stock motor,I may be wrong but I think those with high compression pistons and stage 3 cams are only using 1 3/4 inch pipes.

It's a pipe in a pipe, probably something like the stock header, and I was excited so I bought it, and then read up on straight pipes.

Title: Re: Straight pipe? Baffle?
Post by batman on 10/28/16 at 21:36:26

If it's baffled like the one you show in the pic ,It doesn't look to be very restrictive ,but you could play with that ,maybe add a plate in the center much like a Dyna muffler.but I may be nuts ,lets see if others have the Mac ,or have a handle on this. It is nice looking!

Title: Re: Straight pipe? Baffle?
Post by Dave on 10/29/16 at 02:54:55

It is a nice looking pipe, and we are all hoping that it works well, and is not too loud.

An pipe without adequate restriction can cause pressure waves that hinder good performance.....hopefully that situation won't occur with this pipe.

Title: Re: Straight pipe? Baffle?
Post by Armen on 10/29/16 at 04:02:27

Is there room in the muffler to wrap the baffle with fiberglass?
A lot of pipes have done that. It knocks the sharp edge off the sound. Just get some household insulation fiberglass (Home Depot?) and wrap it around the baffle. Hold it in place with safety wire.
It won't last forever, but you can repack it when the stuff cooks out.
I wondered about the 2" head pipe diameter. Prob nothing short of a lot of dyno runs will answer that.
Very handsome system :)

Title: Re: Straight pipe? Baffle?
Post by Redryder652 on 10/29/16 at 04:20:48

5E6D727A711F0 wrote:

That 2 inch pipe, has another pipe inside, just like stock. And the baffle can't be removed to wrap.

Title: Re: Straight pipe? Baffle?
Post by old.indian on 10/29/16 at 09:22:09

http://i266.photobucket.com/albums/ii243/oldpackard/thumbnail_ls650_5_zpsgsemj6vz.jpg (http://s266.photobucket.com/user/oldpackard/media/thumbnail_ls650_5_zpsgsemj6vz.jpg.html)
If you don't want it, I'll trade ya for mine (the exhuast system), and I'll throw in my annoying second born to boot.... 8-)

You will need to re-jet and you might want to install a high flow air filter (K&N) at the same time.

Title: Re: Straight pipe? Baffle?
Post by Redryder652 on 10/29/16 at 09:36:06

383B33793E39333E3639570 wrote:

I know I'm gonna have to rejet, and I've done it before, however, I don't want to get rid Of the stock airbox, do you have any suggestions? You think I can just run it if I rejet?

Title: Re: Straight pipe? Baffle?
Post by old.indian on 10/29/16 at 09:54:21

K&N makes a filter that fits in the stock air box. (part # SU 6595, I've used this in my stock air box, so I know it works, and it comes with a bracket and screw to hold it in place.) Can you run it with just a re-jet ?? I certainly wouldn't hesitate.

Title: Re: Straight pipe? Baffle?
Post by Ruttly on 10/29/16 at 11:40:38

Take your new baffle to the plumbing dept at the local hardware store , then look for crumb cups they keep junk from going down the drain they make several styles and sizes. The baffle I made for my pipe I was able to find 2 that fit one that fit over forward end of baffle just put 2 screws in it and the other fit inside the baffle at the rear with 2 screws then packed it with a good packing material. If it's too quiet just drill all the little holes bigger !

Title: Re: Straight pipe? Baffle?
Post by batman on 10/29/16 at 12:19:25

Air filter!check out Oldfellers air filter,(I think it's in the tech section ) as good or better than K&N ,can be made for about ten bucks and requires less up keep.(I just cleaned and oiled mine this spring after two years and 9,000 miles!)