BAZ2CRAZY Posted April 13, 2010 Share Posted April 13, 2010 HelloooNeed advice from someone with experience with there manifolds cracking etc...Basicly ive found a couple cracks... removed it from the car and welded them up... Only, after it had cooled etc i found that the heat stresses had caused it to crack in several other areas...My question is;If this crack ive found a problem? or should i risk it and try re-weld it..This is the second runner by the way (number 2 cyl)(same crack)The thing thats pissed me off is that its probably worse than the crack i found in the first place!There are also a couple more tiny cracks.. but i dont think i shall bother with those.CheersMitch Quote Link to post Share on other sites
WallaceGlanza Posted April 13, 2010 Share Posted April 13, 2010 Personally I'd get rid of it and get a decent one. Quote Link to post Share on other sites
BAZ2CRAZY Posted April 13, 2010 Author Share Posted April 13, 2010 I was afraid someone would say that.Ok, so. If i was to keep it for say a couple months... the crack wouldnt be detrimental to the engine would it? say.. if it blew slightly?Mitch Quote Link to post Share on other sites
WallaceGlanza Posted April 13, 2010 Share Posted April 13, 2010 No, you'll just lose a bit of power and it will sound crap. Quote Link to post Share on other sites
BAZ2CRAZY Posted April 13, 2010 Author Share Posted April 13, 2010 Im not fussed about that really, just dont want to pap my engine.I may aswell have a go at welding it again.Mitch Quote Link to post Share on other sites
iamlegend Posted April 13, 2010 Share Posted April 13, 2010 by my sps mani minted lad!! great condition!! big improvement when fitted Quote Link to post Share on other sites
Steve GT Posted April 13, 2010 Share Posted April 13, 2010 new one matethe weld will never hold in my opinion you can weld it all you want it will keep cracking Quote Link to post Share on other sites
Spanner Posted April 13, 2010 Share Posted April 13, 2010 ok if u weld it,drill a small hole each end of the crack to stop it spreading, then heat it up with a blowtorch and weld it quickly! Quote Link to post Share on other sites
Sparky Posted April 13, 2010 Share Posted April 13, 2010 Buy a decent manifold be worth it in the long run Quote Link to post Share on other sites
BAZ2CRAZY Posted April 13, 2010 Author Share Posted April 13, 2010 I believe this manifold is one of the original sps manifolds...Ok, what manifolds do people recommend?Mitch Quote Link to post Share on other sites
Blitz Posted April 13, 2010 Share Posted April 13, 2010 it is the nature of stainless steel manifolds to expand and contract with heat so in the end most of them do crack however the better quality the manifold the better the steel the greater time before the crackwas that a japspeed manifold dude? Quote Link to post Share on other sites
BAZ2CRAZY Posted April 13, 2010 Author Share Posted April 13, 2010 Narh, i believe its an original sps.. Ryno will know.It must be around 3 years old... at least. I welded nowhere near where the current crack is lol!Il just weld it, heat it a little, relieve some stress. Then start saving for a new manifold.Any one got any recomendations for mani's?Mitch Quote Link to post Share on other sites
Matt Glanza Posted April 13, 2010 Share Posted April 13, 2010 Zisco mate.defo the best out there Quote Link to post Share on other sites
Blitz Posted April 13, 2010 Share Posted April 13, 2010 second on the zisco i had a japspeed kept cracking withing weeks put a zisco on cant knock it its a fantastic manifold Quote Link to post Share on other sites
Steve GT Posted April 14, 2010 Share Posted April 14, 2010 im going to have to fight the japspeed corner here ladsi had a full japspeed system on my black gt and as well as sounding awesome it also NEVER let me down once. i found the quality very good indeed and would reccomend them to anyone lol dont see how they can get bad comments there no where as near as bad as Autobahn are they lol Quote Link to post Share on other sites
durmz Posted April 14, 2010 Share Posted April 14, 2010 im going to have to fight the japspeed corner here ladsi had a full japspeed system on my black gt and as well as sounding awesome it also NEVER let me down once. i found the quality very good indeed and would reccomend them to anyone lol dont see how they can get bad comments there no where as near as bad as Autobahn are they lolyeah but the exhaust faces nowhere near the amount of heat that the manifold and downpipe does, and there manifolds just cant handle it, and there actually pretty much the same as autobahn ones Quote Link to post Share on other sites
Socks Posted April 14, 2010 Share Posted April 14, 2010 im going to have to fight the japspeed corner here ladsi had a full japspeed system on my black gt and as well as sounding awesome it also NEVER let me down once. i found the quality very good indeed and would reccomend them to anyone lol dont see how they can get bad comments there no where as near as bad as Autobahn are they lolcouple of factors at play here....a braced decat is ALWAYS vital! when fitting a manifold of any kind...The later japspeed manifolds were braced unlike the autobahn ones or the earlier ones...However ive still seen stories of them cracking on here and on tgtt....go with sps, roadrunner, zisco, racetech... Quote Link to post Share on other sites
bucketep91 Posted April 14, 2010 Share Posted April 14, 2010 defo get a new mani mate, I've rewelded mine about 4 times now and it just keeps cracking its not worth the hassle, i wish i baught another 1 rather than repairing it all those times Quote Link to post Share on other sites
Blitz Posted April 14, 2010 Share Posted April 14, 2010 im going to have to fight the japspeed corner here ladsi had a full japspeed system on my black gt and as well as sounding awesome it also NEVER let me down once. i found the quality very good indeed and would reccomend them to anyone lol dont see how they can get bad comments there no where as near as bad as Autobahn are they lolthats fair enough mate the whole point of the forum is to hear different peoples experiences with the productsbut all i cant say is when ed the japspeed rep was talking to me about all my problems and sent out a brand new one i took it to gbh (before it was fitted) and they put it on a straight edge and you could see the face was bent already he even poked the filler gauge through Quote Link to post Share on other sites
Sparky Posted April 14, 2010 Share Posted April 14, 2010 I also had a Japspeed manifold and decat.The decat cracked but that was because my brace was broke.As for the manifold I couldnt fault it, bought it 2nd hand and it had 6 months of abuse glowing red hot and never let me down, its all down to how well they are braced.But as said Zisco, and RaceTech are about the best Quote Link to post Share on other sites
BAZ2CRAZY Posted April 14, 2010 Author Share Posted April 14, 2010 Cheers fellas.For the time being, im going to stick with the current mani-untill i can afford a new one.Any views on ram style mani's to the compact design?Mitch Quote Link to post Share on other sites
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