Couple ?? About weight

General forum on engines, transmissions, gearing and modifications to each

Moderator: rztom

Message
Author
4cyl h2
Posts: 47
Joined: Wed Oct 05, 2016 11:34 pm

Couple ?? About weight

#1 Post by 4cyl h2 » Sun Feb 19, 2017 11:03 am

What's do some of the popular pipes weigh per pipe with silencers?? Spec 2. DG kennys toomey etc.

Also what about the weight of an old rd350 or rz350 all stock except for aftermarket pipes and a full tank of gas. ??

User avatar
two-stroke-brit
-----
-----
Posts: 1701
Joined: Fri Nov 22, 2013 10:49 pm
Location: Houston texas

Re: Couple ?? About weight

#2 Post by two-stroke-brit » Sun Feb 19, 2017 1:18 pm

i weighed 1 spec11 pipe and it was 5lbs.
mark
350LC,Athena 392 big bore,stock porting,swiss cheese air box,stock reeds,spec11 pipes.(now TSA big bore pipes)
She might not be pretty but she will always be a fun ride


1982 YAMA RD350LC
98KDX 220R
1967 TRIUMPH TIGER
2001 TRIUMPH TT600

tacky1
Posts: 950
Joined: Wed May 13, 2015 1:11 am
Location: Pacifica,,

Re: Couple ?? About weight

#3 Post by tacky1 » Sun Feb 19, 2017 5:03 pm

I just weighed these.

Right Side Stock Canadian/European style Exhaust with baffle. 10.35 LBS
Right side Toomey with clamp and one spring and silencer. 5.77 LBS
Last edited by tacky1 on Mon Feb 20, 2017 12:27 am, edited 1 time in total.
1985 RZv500
1984 RZ500 Hybrid
1986 RG500 Walter Wolf
1986 RG500 Skoal Bandit
1984 RZ350
1984 RZ350 Hybrid
1981 RD350LC
1981 RD350LC Hybrid
2009 CR500AF Supermoto 250X
2007 CR500AF 250X
1988 YSR50 (2)
1984 GPZ750 Turbo
1989 VFR750R RC30

User avatar
Questo vecchio rz
Posts: 1116
Joined: Sun Aug 16, 2015 5:55 pm
Location: Reconquista of California

Re: Couple ?? About weight

#4 Post by Questo vecchio rz » Sun Feb 19, 2017 5:45 pm

A stock RZ weighs around 375 lbs with fuel. Thats a US spec machine w catalytic converters in the pipes, I've had Canadien spec pipes and they feel almost as heavy but probably 5 lbs lighter.

My batteties are low in my scale, but show a set of Lomas GP pipes in stainless to weigh 5.5 lbs for the entire set, that both pipes ( no silencers) there carbon I'm guessing them at about 2.5 lbs. JL pipes in stainless use a thin ga. metal much lighter than mild steel pipes Ive had.
Banshee (Baja) race bike,+ 2 A Arms,L.E.Ds, Toomey, +4 stroker IMS tank, run flats.
96 GSXR SRAD, Future Yoshimura rep.
85 custom Tri-Z
RZ/YZR bike(project)
86 VFR750 RC24 Merkel replica (project)
Royal Enfield Bullet 500

4cyl h2
Posts: 47
Joined: Wed Oct 05, 2016 11:34 pm

Re: Couple ?? About weight

#5 Post by 4cyl h2 » Sun Feb 19, 2017 6:55 pm

Thanks much. Trying to compare and watch weight on my project best I can. Pretty hard to do on a budget. Really trying for no more than 375 lbs without fuel. At this point can only hope

User avatar
Questo vecchio rz
Posts: 1116
Joined: Sun Aug 16, 2015 5:55 pm
Location: Reconquista of California

Re: Couple ?? About weight

#6 Post by Questo vecchio rz » Sun Feb 19, 2017 7:53 pm

4cyl h2 wrote:Thanks much. Trying to compare and watch weight on my project best I can. Pretty hard to do on a budget. Really trying for no more than 375 lbs without fuel. At this point can only hope
Is this your 4 cylinder project you are refering too?

Either way..it is a challenge on a budget.
All I can ad is ..strip as much necessary brackets, components, wiring as possible within what works for you.

Use as much alum & carbon fiber, fiberglass as possible. Trim bodywork, delete R fenders shorten fronts, minimal battery, led headlight if at all etc.. Its all a sacrifice..you have to decide how much.

Search any vintage sites for old school magnesium or wire wheels and components..often old stashes go pretty reasonable. I prefer cast wheel looks over spoked but RD350 etc.. spokes are ofen FAR lighter than period model mag look casts. . If this is not a racer..you can delete 1 front rotor, utilize a small scooter rotor@ rear etc..

I think your goal of 375lbs is pretty realistic even w a double widened case as long as you follow some basics.

If this is just a RD or RZ then you can be down to a fighting weight of 345 lbs in a afternoon..easy.
Banshee (Baja) race bike,+ 2 A Arms,L.E.Ds, Toomey, +4 stroker IMS tank, run flats.
96 GSXR SRAD, Future Yoshimura rep.
85 custom Tri-Z
RZ/YZR bike(project)
86 VFR750 RC24 Merkel replica (project)
Royal Enfield Bullet 500

slinger
-----
-----
Posts: 2197
Joined: Thu Jul 30, 2009 1:02 pm
Location: Canada

Re: Couple ?? About weight

#7 Post by slinger » Sun Feb 19, 2017 10:52 pm

Questo vecchio rz wrote:
My batteties are low in my scale, but show a set of Lomas GP pipes in stainless to weigh 5.5 lbs for the entire set, that both pipes ( no silencers) .
You are just a compulsive liar that likes to pollute the rz forum and others with your unfounded guff. Look forward to your response............how much do they really weigh?

SLINGER

User avatar
Smoker
Posts: 4778
Joined: Sun Mar 23, 2008 8:08 pm

Re: Couple ?? About weight

#8 Post by Smoker » Sun Feb 19, 2017 11:58 pm

Questo vecchio rz wrote:My batteties are low in my scale, but show a set of Lomas GP pipes in stainless to weigh 5.5 lbs for the entire set, that both pipes ( no silencers) there carbon I'm guessing them at about 2.5 lbs. JL pipes in stainless use a thin ga. metal much lighter than mild steel pipes Ive had.
Nope. Those pipes are close to 8 lbs. with no silencers.

4cyl h2
Posts: 47
Joined: Wed Oct 05, 2016 11:34 pm

Re: Couple ?? About weight

#9 Post by 4cyl h2 » Mon Feb 20, 2017 12:20 am

Yes it's my 4cyl project thanks for the tips

Zombie
Posts: 168
Joined: Fri Jun 23, 2006 5:17 pm
Location: Pennsylvania

Re: Couple ?? About weight

#10 Post by Zombie » Mon Feb 20, 2017 1:29 am

If you do have some extra bucks, titanium fasteners can shed some weight, but the $$ add up quick.
You can also skeletonize or hollow out some parts here and there.

User avatar
Questo vecchio rz
Posts: 1116
Joined: Sun Aug 16, 2015 5:55 pm
Location: Reconquista of California

Re: Couple ?? About weight

#11 Post by Questo vecchio rz » Mon Feb 20, 2017 5:39 am

slinger wrote:
Questo vecchio rz wrote:
My batteties are low in my scale, but show a set of Lomas GP pipes in stainless to weigh 5.5 lbs for the entire set, that both pipes ( no silencers) .
You are just a compulsive liar that likes to pollute the rz forum and others with your unfounded guff. Look forward to your response............how much do they really weigh?

SLINGER

Slinger..your such a pissed off dude w a fucked up ego problem its quite simply pathetic that you pick petty issues such as this, especially when "Lomas" or "Toomey" or Another Tuner are mentioned you feel the need to attempt to smear people whom are just here as a fun hobby..your such a creep. Like I really have an adgenda to fabricate and lie...get a life. If anyone disrupts a forum...its you! Go look in the mirror or read your arrogant cocky posts. I really look down on indaviduals such as yourself whom try to make themselves look better or knowledgable at the expense of others, your often of poor character
.

For anyone else..my entire system weighs in at less than 10 lbs. But I'll give the benefit of the doubt & say 10. This is from 2 seperate weighings on two diffrent brand new scales, 7 or so years apart. The old digital scale today...was (obviouslly as implied by the statement "weak batteries") likley off a little due to orig batteries and years of 120° heat. So I bought a new one that is perfectly fine for this application. Theres no need for anything fancy its horseshoes & hand grenades...close enough. Pictures show the reality. :smt044

Below is what the facts are. I weighed each pc 3 times
Left pipe w spigot 3.5 lbs. Right pipe w spigot 3.0 lbs. Silencers 2.0 lbs Thats 9.5 lbs..2 scales..yes basic scales not pharmaceutical or merchant grade down to the grams.
Its accurate enough, it weighed & confirmed everything I put on it, 2 lb 3lb. 5 lb 10 lb.weights all read correct. CLOSE ENOUGH..thats what my pipe set weighs. Others..who knows results may vary or be marginally more accurate..I could really care less,


& Slinger..So BFD.. it was off 1.0 lbs..there still dammned light. Read it & weep BEOTCH...Your still a forum troll, a shithead and have a huge chip on your shoulder, just the fact you came on here and felt possessed to post what you did, just confirms what a idiot you are..really calling one a blatant liar over 1.0-1.5 lbs on a stated questionable scale. Once again sticking your nose into a perfectly nice thread on a discussion about ballpark weight...Moron. Your such a fucking idiot Im so glad I never did any buisness with you..so glad! :smt098 :smt098.


SCALE READS 3 LBS CORRECTLY.
Image

LEFT PIPE: 3.5 lbs.
Image

RIGHT PIPE: 3.0 lbs
Image

SILENCERS:3 lbs
Image

MY NOTES FROM 7 YEARS AGO: about 10 lbs
Image

AND FINALLY SLINGER THIS IS FOR YOU: :smt098
Image
Last edited by Questo vecchio rz on Mon Feb 20, 2017 7:24 am, edited 5 times in total.
Banshee (Baja) race bike,+ 2 A Arms,L.E.Ds, Toomey, +4 stroker IMS tank, run flats.
96 GSXR SRAD, Future Yoshimura rep.
85 custom Tri-Z
RZ/YZR bike(project)
86 VFR750 RC24 Merkel replica (project)
Royal Enfield Bullet 500

hondaror
Posts: 2828
Joined: Mon Mar 03, 2014 8:44 pm
Location: Alberta, Canada

Re: Couple ?? About weight

#12 Post by hondaror » Mon Feb 20, 2017 6:08 am

When I first read this, I thought wow, your weights are high. 4 cylinders, that changes things quite a bit. I had my old LC under 300 lbs. They were 315 stock, dry.
You don't say whether you are running premix or injector. Power valve or not. Are you racing the bike or street?
Picture this for the track: No power valve=no servo, no servo brain, no servo cables. Premix=No injector oil tank, no oil pump. No tail lights, headlight, signals, wiring for lighting, seat, seat locks, tabs in the rear end, cut off excess rear frame, run 2 layer glass seat and fairing. Cut stand mounts off. Remove kick start and cluster and have hole welded up. remove flasher unit, and unneeded relays. On the LC, no battery, total loss is fine. Convert to 520 chain and aluminum rear sprocket.
Stock tire sizes, as they are lighter. Drill holes on the perimeter of all washers. Remove air box and run open carbs. Remove rear foot pegs and cut mounts off. Pipes. Remove speedo, speedo drive gear and cable. Remove ignition switch and key. It all adds up. You're almost heading into 250 GP weights. Old TZs were around 220 lbs dry.
Rory
2 1984 RZ350s
1985 RZ350
9 1986-1990 RZ350s
2000 ST2
2005 749
2005 749 with 999 engine

slinger
-----
-----
Posts: 2197
Joined: Thu Jul 30, 2009 1:02 pm
Location: Canada

Re: Couple ?? About weight

#13 Post by slinger » Mon Feb 20, 2017 10:34 am

Man Questo vecchio rz you really have the hate thing going on :smt006 , let it all out dude your make yourself ill with all the hate in ya :smt008

4cyl h2
Posts: 47
Joined: Wed Oct 05, 2016 11:34 pm

Re: Couple ?? About weight

#14 Post by 4cyl h2 » Mon Feb 20, 2017 11:25 am

Premix rd and r5 cylinders hopefully mostly a powerful(after lots of refinement I'm sure) street fun bike

User avatar
T.RexRacing
Posts: 1318
Joined: Fri Nov 01, 2013 8:34 pm
Location: back in the hills

Re: Couple ?? About weight

#15 Post by T.RexRacing » Mon Feb 20, 2017 1:39 pm

Just out of curiosity this old rz where did you find a 3 pound butt plug with an o-ring seal to minimize leakage?
There is only one difference between a madman and me. The madman thinks he is sane. I know I am mad.
Salvador Dali

Post Reply