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Bob, Various shops prices vary,...we charge $20 per piston (min 2 ) for thermal coat, add $5 ea for moly skirt coat. ( new pistons,...slightly more for used) Jeff Churchill J.C. Performance 617-06 Bicycle Path Pt Jeff Sta NY 11776 USA techline: 631-928-9863 Fax: 631 928-6679 website: www.jcperformance.com ************************************************************************* ************ On Tue, 9 Nov 1999 07:47:52 -0500 shammar@nsk-corp.com writes: > > You are correct on the KZ1000, but they only offer up to 1260 on the > GPZ. They > give you the hard chrome pins with the kits now, but they may be the > thin wall > pins depending on which kit you get. They offer a heavy wall > turbo/nitrous pin > as well, and they're cheap compared to MTC. > > The coating would only be on the top surface of the piston - the one > exposed to > hot combustion gases. I'm not sure what they cost. > > Regards, > Bob > > > > > > "Abraham Mara" <umaraa00@umail.ucsb.edu> on 11/09/99 03:21:45 AM > > Please respond to AbeFM@dis.member.org > > To: Bob Shammas/EQA/Nsk-Corp@Nsk-Corp, "Steve Leonard" > <sleonard@buffnet.net> > cc: turbobike@natvideo.com > Fax to: > Subject: RE: [turbobike] Compression Ratio > > > > weisco definatly sells a 1428 kit for the KZ-1000s, I'd have one > were I not > so broke. :-) I AM ordering pistons this week, from them... 73 > mm, the > last size on the stock sleeves. Are the chrome pins the stock ones > they > give you in their kits? Does anyone know what those cyclender and > piston > coatings cost to get done? How thick are the coatings (i.e. do I > need to > bore the cylender any bigger to fit it?) Thanks in advance > -Abe. > > -----Original Message----- > Hi Steve, > > For a street ridden 2 valver on pump gas I would go no higher than > 8:1. > Those > Kaws will give you fits with detonation, especially if you want to > run any > appreciable boost. See if you can come up with a 1428 kit to make > up for > the > reduced compression. I know the Wiseco catalog only lists up to > 1260, but > they > do exist. I like the MTC pistons and their standard thickness hard > chrome > pins > (even the small 17mm versions for the older Kaws) work well until > you really > turn the heat up (like 300 Hp). The new Wiseco pieces are very > good, > though. > They solved their problem of wrist pin galling and the pistons have > gotten > much > better. Use the heavy wall hard chrome pins from Wiseco if you go > that way. > > Make sure you take the squish out of the motor. Run a thick base > gasket to > put > the piston squish band height at least 0.050" below the cylinder top > surface. > You might be able to run the 10.25:1 pistons and use a very thick > base > gasket to > both reduce the compression and take out the squish. > > One option is to go with two plugs per cylinder to reduce the flame > travel > path. > You can then retard the timing a bunch without losing anything. The > drawback is > that it tends to weaken the head, and you have four coils and eight > plugs & > wires to deal with. It makes a nasty sound when the head splits > open down > the > center.....trust me. > > The oversized valves will help but you'll need porting to go with > them. > Your > '83 will make a nice cylinder head. I have a good source if you are > interested. > > Your stock cams will work well. Several six second funnybikes use > those > exact > cams. > > Run a big oil cooler, or else run two smaller ones if they fit > better. > Don't > block the airflow to the head and cylinder with the cooler. I took > 40 > degrees > out of the running oil temp. on my FJ with the addition of a second > cooler, > and > gained oil pressure in the process. I mounted it down on the chin > fairing, > right in front of the water injection tank. You'll need one of > those on > your > bike for sure as well. > > It sounds like others have had good experiences with those thermal > barrier > coatings. I've never tried them myself. > > Good luck. > Bob > > > > > > "Steve Leonard" <sleonard@buffnet.net> on 11/05/99 02:20:18 PM > > To: turbobike@natvideo.com > cc: (bcc: Bob Shammas/EQA/Nsk-Corp) > Fax to: > Subject: [turbobike] Compression Ratio > > > > > I am building a 1983 GPZ1100, with a MoTeC M4 engine management > system and a > IHI-RHB5 turbocharger..... > > Since this a 2-valve motor and I want it to be some what streetable > (preferabably pump gas), what compression do you recemmend, > (1260cc), to > reduce > detonation I can retard the timing as boost increases with the MoTec > software. > Also will any great benefit be obtained with 1mm over-size > stainless intake > and > exhaust valves? > Is there any advantage to having the combustion chamber and pistons > "coated" > with the thermal barrier compounds that are available?( I live about > 10miles > from a place that does it) > > regards > Steve > > > > > > >