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+--- Thread: Conrods?? (/showthread.php?tid=34632)
Conrods?? - Beany58 - 01-08-2016
Advise needed again please. So iv purchased some catcam 109's and wossner pistons, i was wondering about the rods. What sort of revs will the standard rods manage safely for abit of track work, (8k ish) obviously posh rods are about 1k which is out of the question really, but iv seen sets for £200!? Chinese id of thought but has anybody had any run ins with these? I understand you cant put a price on reliability and performance but thats abit of a difference in price. Any help would be appreciated! Thanks!
Conrods?? - bashbarnard - 02-08-2016
If its any help a few xud boys run chinese rods without issues
RE: Conrods?? - welshpug - 02-08-2016
good rods are £600 up, mine are Farndon.
avoid pec and anything else made in the same factory with a different sticker.
what compression height and pin diameter are your pistons?
what compression ratio and valve clearance?
RE: Conrods?? - Rippthrough - 03-08-2016
Your trouble with the chinese rods is that you are the quality control, so long as you're happy checking bore sizes, ovality and tapers. Otherwise you're chancing that they came out spot on off the machine.
RE: Conrods?? - Xsikid - 03-08-2016
I run pec rods on high boost sc 6 and they are just fine
RE: Conrods?? - welshpug - 03-08-2016
as would standard rods no doubt.
RE: Conrods?? - Beany58 - 04-08-2016
(02-08-2016, 11:04 AM)bashbarnard Wrote: If its any help a few xud boys run chinese rods without issues
I am tempted tbh.
(02-08-2016, 05:18 PM)welshpug Wrote: good rods are £600 up, mine are Farndon.Alls iv seen is £200 chinese and i priced cp the other day, uff! £1000. Pistons are 20mm pin with 12.2:1 maybe?? My engine builder says he maybe modify the original rods but he needs to see the piston and rod together, still waiting on pistons, hopefully here tomoz. Not heard of farndon, ill look now.
avoid pec and anything else made in the same factory with a different sticker.
what compression height and pin diameter are your pistons?
what compression ratio and valve clearance?
(03-08-2016, 05:47 PM)Rippthrough Wrote: Your trouble with the chinese rods is that you are the quality control, so long as you're happy checking bore sizes, ovality and tapers. Otherwise you're chancing that they came out spot on off the machine.
This is what im worried about. Dont want to be spending good money to only have a rod let go. We'll see! Haha!
(03-08-2016, 08:19 PM)Xsikid Wrote: I run pec rods on high boost sc 6 and they are just fine
Whats your peak rpm? Have you got a link for these?
RE: Conrods?? - welshpug - 04-08-2016
if your guy will bush 5he standard rods I'd do that, they're well designed and not too heavy.
with a 20mm pin theres enough meat to bush them as a standard pin is larger, 24mm iirc.
fa
farndon and robson are the same family iirc, mine came in tobson engineering box ordered with carl robson.
they make billet steel cranks for race engines too.
RE: Conrods?? - Xsikid - 05-08-2016
Peak rpm is 8000 power just a shade over 400bhp an I do give it quite a bit of stick! Go on pec website an have a looksy
RE: Conrods?? - welshpug - 05-08-2016
yeah ive seen loads of pec rods, id stick to o.e or spend a tiny bit more for proper stuff.
I've seen quite a few standard rods modified in engines producing double standard power.
RE: Conrods?? - Beany58 - 05-08-2016
(04-08-2016, 11:08 PM)welshpug Wrote: if your guy will bush 5he standard rods I'd do that, they're well designed and not too heavy.
with a 20mm pin theres enough meat to bush them as a standard pin is larger, 24mm iirc.
fa
farndon and robson are the same family iirc, mine came in tobson engineering box ordered with carl robson.
they make billet steel cranks for race engines too.
Yeah I understand, thanks pal! Yeah think ill stick with standard rods just put some arp's in at the same time. Billet crank would be awesome, id like shorter fd first tho really and a lsd. Thanks for your time once again!
(05-08-2016, 09:23 AM)Xsikid Wrote: Peak rpm is 8000 power just a shade over 400bhp an I do give it quite a bit of stick! Go on pec website an have a looksy
400bhp!!? What you got a rocket? Ill like a passenger ride in that some day!
RE: Conrods?? - Xsikid - 05-08-2016
Lol yeah no worries iv got a high boost lynx supercharged set up, yeah it's not that far off a rocket lol
RE: Conrods?? - Beany58 - 05-08-2016
Nice! Reliable? Im only looking for 230ish and ill get all the weight out. I used to have 400 in my old evo, cant imagine that fwd!
RE: Conrods?? - Xsikid - 05-08-2016
Had oil chain let go but other than that it's been amazing. Puts s big smile on my face and big black lines on the road. Yeah iv stripped so much out inc heater, spare wheel, rear wiper etc. It's sooooo fast and it's also a true sleeper with dull paint an a couple lol rust spots .
RE: Conrods?? - Beany58 - 05-08-2016
Oil pump chain? Sounds expensive! Got an lsd? Iv still got my heater for what use it is but pretty much everything else is out. You canna beat a sleeper, my mates got a rough bm 323i with a merc v8 charger wedged on, be sick when its done!
RE: Conrods?? - Xsikid - 06-08-2016
Yeah oil pump chain + pump and big end bearings but not that much to sort out. Yeah I love the sleeper look
RE: Conrods?? - fatlapit - 06-08-2016
Nowt wrong with pec rods and wossner pistons go for it
RE: Conrods?? - Beany58 - 06-08-2016
(06-08-2016, 08:58 PM)fatlapit Wrote: Nowt wrong with pec rods and wossner pistons go for it
Revving to 8-8500?
RE: Conrods?? - miles - 06-08-2016
We all have our preferences with engine bits, the amount of hassle I have had with Wossner I'd avoid like the plague and the rods would never even get a look in, With 2500 miles of 9000 rpm limit on my engine, saenz rods and JE Pistons came out looking as new as installed
Oil chains you can get from Rich W
RE: Conrods?? - Stef205 - 07-08-2016
wossner are awful for machining, all unbalanced to each other people love buying them as there off the shelf items.
RE: Conrods?? - Xsikid - 07-08-2016
(06-08-2016, 10:44 PM)miles Wrote: We all have our preferences with engine bits, the amount of hassle I have had with Wossner I'd avoid like the plague and the rods would never even get a look in, With 2500 miles of 9000 rpm limit on my engine, saenz rods and JE Pistons came out looking as new as installed
Oil chains you can get from Rich W
Rich Walker built my engine but component failure on oil pump chain meant we decided to go genuine Peugeot oil pump and chain. Runs super sweet again now
RE: Conrods?? - fatlapit - 07-08-2016
Had mine up to 8k boosted so aye theyre fine. Unless your gonna build a screaming 9k n/a
motor then youl be fine. I know many many cars using pec rods n wossner pistons. And all are far more powerful than anyone on here. Then again it all comes down to your mapping etc.
Tbh miles unless youve made it you always complain.
RE: Conrods?? - welshpug - 07-08-2016
i wouldn't run a hydraulic engine to 8k regardless of pistons and rods.
RE: Conrods?? - fatlapit - 07-08-2016
Well im glad im nt you. Its only 500 rpm more than standard do nothing to worry about.
RE: Conrods?? - welshpug - 07-08-2016
you'd know what I mean if you did actually take it to 8k regularly...
RE: Conrods?? - Xsikid - 07-08-2016
(07-08-2016, 03:12 PM)welshpug Wrote:
you'd know what I mean if you did actually take it to 8k regularly...
My 6 spends a decent amount of time at 8k. Loves to be driven hard.
RE: Conrods?? - Rippthrough - 07-08-2016
It will until a lifter pumps up and shoves the valves through a piston. They float at 8k anyway so not much point being up there.
RE: Conrods?? - Xsikid - 07-08-2016
(07-08-2016, 04:32 PM)Rippthrough Wrote: It will until a lifter pumps up and shoves the valves through a piston. They float at 8k anyway so not much point being up there.
Ah well until it happens or even if I will just enjoy what I have.