This past weekend I switched to one of the new oil-less turbos and will keep an eye on how it effected temps - I removed all the oil lines so no longer have oil running through the hot turbo, but it now has coolant lines so I'm curious if that evens out, or gives me a bit better temps. I ran it after the cooler so it goes straight from turbo housing to radiator - super easy with our setups due to the oil cooler lines being right there for ez access.

I'd be curious how intake air temps are different between setups.

On paper it should be less backpressure and lower intake charge temps since its larger and puts me closer to the lower left center of the compressor map - I can check some data logs to see how it compares, I'm sure Woolich shows both internal and external air temps so even though ambient will be different from different day logs, we can still see the temp spread. Biggest gains vs the small turbos like GT28 or TD04 sized stuff would be waaaay higher efficiency and lower charge temps at high RPMs.

I will say the dual ceramic bearings are awesome - the exh turbine spins waaay faster at idle than it did on my old school journal bearing turbo even though its a larger wheel, and transient response (how fast it makes more boost when already making boost) is definitely faster. Initial spool did get pushed back ~200rpm, but thats no big deal. I was expecting 300-500rpm later based on chatgpt estimates...but thats always a gamble on accuracy anyway. It seems to make positive boost around 3500rpm now, but I have yet to launch it in anger yet so might be a little earlier than that when getting on it. The TD05 I had prior hit positive boost around 3k rpm stock, and with the extended tip billet compressor was starting spooling around 32-3300.

I just finished it yesterday so very little driving on it so far, so I'm still seeing how it does. I can't leave well enough alone, its my 3rd or 4th turbo setup in 6mos lol.

* Last updated by: Puck on 5/19/2026 @ 2:28 PM *

you ought to make a thread and take some pictures. curious how it all looks. current and past setups.

I may do that when I have some free time. I have tons of (crappy) pics from along the way.

Puck,

Definitely interested to see how that new turbo works for you.

• Designed, machined, and installed a tank mount GoPro mount.
• Designed, printed and installed a new co2 tank aero attachment. I think this is the fourth one now.
• Cleaned the fuel filter.
• Installed a zero gravity wind screen.
• Designed, machined and installed a shift lever assembly.
• Designed and installed a new tail tidy kit.
• Installed a new radiator with new fans.
• Installed a softer spring in the rear shock.
• Installed a 41 tooth rear sprocket.
• Installed APE trac king clutch plates.
• Installed brake tech 330mm rotors.
• Installed titanium brake caliper bolts.
• Installed black anodized aluminum caliper spacers.
• Installed ricks voltage regulator as the other one died.

The last week has been insane. I’ve been dealing with some quality issues on a large order of parts which has been a nightmare. Then the voltage regulator died on me and I didn’t notice it until the battery light came on. At that point it was too late as the voltage was down to 10 volts. I made it about 5 blocks before the bike died. Surprisingly it ran all the way down to 7 volts! Ended up getting a ride home from a friend, grabbed the truck, loaded it up and hauled it home. The voltage regulator died and the potting/epoxy on the back cracked and expanded so it was pretty obvious what the problem was. I swapped the stator out as well for now just to be safe. I’ll test it and put a new connector and terminals on it and throw it back in at some point. I also cut the plug off the OEM stator harness that goes from the side of the fuel tank to the regulator and extended it so I can swap stators without removing the fuel tank.

I got really tired of the warped brake rotor so I called brake tech and got them to put a 330mm rotor kit together for me. It turns out the 330mm kits are all they had in stock for the zx14. The kit comes with plain bolts and spacers which really stand out and look like crap so I ordered some black anodized aluminum spacers and black titanium bolts for the calipers.

The GoPro mount I made swivels so you can move the camera to the side which allows you to be able to tuck down without hitting the camera. I had a similar setup on my last zx14.

I wanted a little more wind protection so I installed a little taller zero gravity wind screen. I was a little disappointed with the surface quality of the windscreen. It had a bunch of micro scratches in it and it wasn’t nice and clear. Really bugged me! So I sat there and polished it with some plastic polish for a hour and got it looking pretty good.

I ordered a 39 tooth sprocket which I suspected would possibly require shortening the chain when I ordered it and sure enough it did, so I ordered a 41 tooth sprocket to try before I commit to shortening the chain. I also ordered a new master link so I’m ready if I do decide to shorten it.

When I ride I wear my steel toe work boots which have a defined heel. Well that forces my foot to sit back a little ways and makes it hard to get a good position on the shifter toe peg so I made a new shifter assembly which has some up and down adjustment as well as front to back adjustment for the toe peg. So far it’s been working good and has made shifting a lot easier.

The MTC clutch plates/steels have been pissing me off. For some reason if the bike has sat for a day or so when I go to put it in gear for the first time it will kill the engine even with the clutch lever pulled in. I could get around it if I revved the engine up but I don’t always remember. Well the other day the neighbor had a big party and I went to take off, killed it and looked like an idiot. That was it! After that I ordered the ape clutch plates/steels.

I installed the new radiator which came with a new set of OEM fans so I decided to just leave the OEM fans on it for now and see how they work. I have a couple of the Schnitz fans but I didn’t want to deal with trying to install them and rewire them so I decided to leave the OEM fans on it for now. So far it seems to be working good. I let it run in the garage for 10-15 minutes and the fans would bring the temp down to 180 repeatedly. With the old radiator it would get well into the 200’s. We will see how it does when we get some warmer weather here.

I finally had a chance to go for a short ride today before it rained again. The new clutch works great. It feels a lot like the MTC clutch and seems to be similar in the way it engages. The brakes no longer pulse when I use them so that’s awesome. I haven’t had a chance to go properly bed them in so I haven’t hammered on them to hard yet. The rear spring is better but it’s a little stiff yet. I will pull some preload off it and see if that helps. The shifter works much better for me. I need to make some small adjustments with the tune yet. When I shift unless I’m beating on the bike I just let of the throttle to shift and don’t use the clutch. Well right now it goes pretty rich and stumbles a little bit when I let off to shift. It’s pretty minor but it’s bugging me. I made some adjustments today which helped but it’s not quite perfect yet.

* Last updated by: bryan468 on 5/24/2026 @ 10:47 PM *

No issues with the -1 T rear sprocket? I've read threads about using a larger rear sprocket interfering with TC. I'd have thought using a smaller sprocket would do the same thing.

Awesome, glad to see the temps under control!