Josh Posted July 19, 2006 Share Posted July 19, 2006 Well I just got me a new fuel injected pinto turbo and its setup with turbo pistons and 205 rods etc now and will run at 15psi "reliably". But before I put it in the capri im thinking il replace the pistons and rods with forged items. Questions is, where can I get these and how much etc etc, any info on them thanks Quote Link to comment Share on other sites More sharing options...
peteretep Posted July 19, 2006 Share Posted July 19, 2006 any pics of the engine? Quote Link to comment Share on other sites More sharing options...
Josh Posted July 19, 2006 Author Share Posted July 19, 2006 Quote Link to comment Share on other sites More sharing options...
eke_zetec_RWD Posted July 19, 2006 Share Posted July 19, 2006 wow did u end up paying the asking price? personally i thort it was a bit steep but i spose it saves a bit ov time buying it all done. good luck. i use cosworth pistons with 205 rods and hav no probs.i hav run as much as 25psi. i wouldnt trust that standard headgasket tho. get a cometic one. Quote Link to comment Share on other sites More sharing options...
Gaz Posted July 19, 2006 Share Posted July 19, 2006 Dont bother replacing pistons and rods as its not that simple. Just run it how it is for now and run on a conservative 10psi. Should handle that if the compression is what he says. Remember, you wont be usedd to all that extra power so wanna get used to it first. If you want to up the boost alot later then go forged. To do forged pistons and rods plus pay someone to put them in and check all clearances etc again will cost ya over 2g. Not worth it unless ya do it yourself and get good price on parts. Quote Link to comment Share on other sites More sharing options...
RT Posted July 19, 2006 Share Posted July 19, 2006 I disagree, if you have the money then forged would be a good option. You say it has 'turbo pistons' whats that mean? there are no such thing as turbo pistons. They must be factory ones with a shave? either way, the cast pistons are shit. And what kills most turbo engines are kids can't keep their fingers off the boost tap. So.. you're gonnna wind it up sooner or later and if a cast one breaks it will ruin your block. So.. if it's out of the car and you have the coin then get some forgies. Do it once do it properly remember? Quote Link to comment Share on other sites More sharing options...
2FKNLO Posted July 19, 2006 Share Posted July 19, 2006 i thought it would of been ok to run the 205 rods with the forgies? instead of gettin forged rods as well.. Quote Link to comment Share on other sites More sharing options...
OSC Posted July 20, 2006 Share Posted July 20, 2006 just get cosworth rods and pistons or you could use i think its LD28 nissan rods but then you need to get some machining done if i was you id do it now while the engine is out atleast that way if u wanna make more grunt later your not worrying about reliability Quote Link to comment Share on other sites More sharing options...
Gaz Posted July 20, 2006 Share Posted July 20, 2006 I disagree, if you have the money then forged would be a good option. You say it has 'turbo pistons' whats that mean? there are no such thing as turbo pistons. They must be factory ones with a shave? The guy said they are 'Mahl' pistons. I think perhaps cossie replacement items. Quote Link to comment Share on other sites More sharing options...
Gaz Posted July 20, 2006 Share Posted July 20, 2006 just get cosworth rods and pistons or you could use i think its LD28 nissan rods but then you need to get some machining done if i was you id do it now while the engine is out atleast that way if u wanna make more grunt later your not worrying about reliability Cosworth rods are 205 rods so he already has them in the engine. I wouldnt be surprised if by turbo pistons the guy also means cossie pistons. Quote Link to comment Share on other sites More sharing options...
Gaz Posted July 20, 2006 Share Posted July 20, 2006 i thought it would of been ok to run the 205 rods with the forgies? instead of gettin forged rods as well.. Yeah I dont think ya need forged rods unless you are thinking of big boost/power. You could get them stress releived and treated to make them a bit stronger. Rods are usually round $900 Quote Link to comment Share on other sites More sharing options...
Josh Posted July 20, 2006 Author Share Posted July 20, 2006 Do it once do it properly remember? YES!! This time im taking your advice!! Do it once do it right! So im gona forge them while its out and make it strong first time, so wen it goes in it stays in and yea Quote Link to comment Share on other sites More sharing options...
eke_zetec_RWD Posted July 20, 2006 Share Posted July 20, 2006 sorry but cosworth uses different rods to the sohc pinto 205. cosworth are about 60thou longer than sohc 205 rods. they look lighter too. ie if u use standard cossie forgies then they will stop 1.5mm before the top of the block at tdc. they do share the same small end bore tho. and mahel is the brand of standard yb cossie forgies. Quote Link to comment Share on other sites More sharing options...
Gaz Posted July 20, 2006 Share Posted July 20, 2006 Didnt know that about cossie rods. That means they will stuff your compression up. Well since ya have cossie pistons also then maybe not. Are the cossie blocks the same deck height? Quote Link to comment Share on other sites More sharing options...
RT Posted July 20, 2006 Share Posted July 20, 2006 yeah cosworth rods are not 205 rods.. neither are the pistons. Totally different. Mahl.. but cast... hmm... 1. they are Mahl forged pistons.. 2. they are some sort of hepolite cast piston.. 3. he is full of shit and they are factory pinto pistons with a skim to lower the compression. I'd be guessing the latter. 205 rods are fine with big boost and big power. Neither of which affect rods at all. What kills rods is REVS. 205 rods are better but still not that great.. they will take anything you give them under 6500rpm. If you want to rev higher.. ie, if you have a big turbo and doesn't make boost until 5,000rpm then you want something else. Josh you don't 'forge' them mate.. you BUY forged pistons. Quote Link to comment Share on other sites More sharing options...
Gaz Posted July 21, 2006 Share Posted July 21, 2006 I thought I read somewhere the 205 rods were good for 7000RPM. Still pushing it I supose. What do you rev yours out to RT? Quote Link to comment Share on other sites More sharing options...
OSC Posted July 21, 2006 Share Posted July 21, 2006 hold up so if you put cosowrth rods and pistons into a sohc pinto you would drop heaps of compression is that what you are saying??? Quote Link to comment Share on other sites More sharing options...
Gaz Posted July 21, 2006 Share Posted July 21, 2006 Yearp. But then the cossie DOHC heads would also have differant chamber sizes so exactly what you drop is unknown without cc'ing the head and a few calcs. Also the deck height of the actual block can change this aswell. I would think cossie items to be expensive as they are. If I was to do it I would just used forged pinto pistons or holden pistons (depending on the bore you wish to use) and 205rods. Then drop the compression via the champers in the head. Quote Link to comment Share on other sites More sharing options...
eke_zetec_RWD Posted July 21, 2006 Share Posted July 21, 2006 if u use cosworth roda and pistons then you will hav a ideal cr. the reason why the cossie rods are 60thou longer is becos the cossie pistons have a 60thou lesser pin height. cossie rs500 pistons are mahel forged with a dishd top. when i pull my cortina engine down soon i will cc it all. Quote Link to comment Share on other sites More sharing options...
Josh Posted July 21, 2006 Author Share Posted July 21, 2006 Yes RT I reaslise you BUY forge items... Speaking of that, where do you go about finding out where to get them from etc? Quote Link to comment Share on other sites More sharing options...
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