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Kraken T25 1.6 turbo kit & budget build

Old 10-10-2018, 07:02 AM
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Subbed to this, I've been following a few Kraken builds and the quality just seems top-notch.
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Old 10-14-2018, 02:42 PM
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Funny enough i discovered an issue with the turbo i had been using. I spoke too soon and the spool on the turbo went to **** overnight. Basically, the sleeve that holds the wastegate arm came loose and the wastegate no longer over the port entirely so it can't build boost until 5500RPM. So i decided to finally rebuild my SR20 t25 and throw that back on in the mean time since I didn't feel like screwing around with that.

It's pretty fun at 12-13 pounds since it spools so fast in comparison to the other turbo i was running. Probably will keep it this way for a while as it's a lot more lively overall.

My buddies taking his 1.8 build to the dyno soon so i'm tempted to bring mine in on some dyno time to see what it's making.

I'm still diagnosing a sporadically slipping clutch. I'm guessing oil is getting in there somehow as it's not consistent but it will slip once in a while randomly and then grab just fine immediately afterwards. the 949 clutch shouldn't be slipping at my power levels.
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Old 11-02-2018, 01:02 PM
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hey irollgen4s, what did you do for the heater core hoses? i have the kraken kit with an ISR t25 and the Vband from the elbow to the downpipe touches and is slowly melting the hose away. no serious damage yet but the surface of the hose is starting to get smooth and shiny and I don't want to blow that thing randomly one day.
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Old 11-02-2018, 01:13 PM
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Go read the FM turbo kit install manual. It helps a lot. But onenof their instructions is to take the hard pipe that runs under the manifold and bend the end of it as far up and back as you can. I have almost an inch and a half clearance now doing that on the car with everything installed. With the engine out in the future I can likely get even more.
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Old 11-02-2018, 02:01 PM
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^ exactly what he said. I shoved a 3/8th extension inside the hardline and slowly worked it over until it was out of immediate burn range. Has been fine for the passed few thousand miles with an 1.5-2 inch gap or so. I do suggest some sort of heat shield for the brake situation right next to the turbo and DP just to make sure you stop when you want to.

I've been terrible at updates or getting any footage, i've been super busy with work and i've recently bought a house that is mid renovation and have been dealing with that in my free time. The car is my daily and has been completely fine, i nut and bolt check the manifold nuts and the DP bolts every so often but they're usually only a tad loose at the worst. I'm running 195KPA currently on the SR t25 and it's been fun! still diagnosing oil leaks.. I feel like they never stop on this engine.
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Old 11-02-2018, 02:09 PM
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Thanks for the replies guys! I will give that a shot when I get home today. I feel you on the oil leaks too, itís almost like we drive bmws here
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Old 11-02-2018, 02:20 PM
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I've replaced every seal on the engine sub the oil pan and it still looks like its leaking pretty badly from the intake cam seal. Oh well i've just attributed to cranking the boost up and swapping in another 1.6 or maybe even a 1.8 if i find another daily sometime soon.
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Old 11-02-2018, 03:29 PM
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Might not hurt to get some silicone tubing (with same ID as the hose's OD) and split it down the middle, and clamp it over your hoses.
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Old 12-05-2018, 09:02 AM
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Small update. Bought a nice boring reliable daily so the miata has become a toy. Since becoming a toy it has experienced a new style of driving that it never has before and it has been bulletproof. Lots of rev limiter and tire spin and fun happy times. I'm running the sr t25 around 14PSI and its a blast.

Now for the real fun, I bought a spare 92 long nose 1.6 that i was initially planning on just robbing the head, but after disassembly the 200K head, block and bearing actually look AMAZING compared to my 111k short nose 1.6(that has been boosted possible most of it life based off supercharger stickers under the hood).

So the new plan has already gone into effect, I'm doing a rods only build just to give myself a small amount more of head room, stock pistons, re ring the pistons, refresh the head(maybe throw some 264's in it?) and re gasket the entire thing. Initially i'm going to run it on that bigger ebay turbo that i have sitting on my shelf but ideally i want to grab a 2560 to give myself just that bit more over my t25 right now as the t28/ebay turbo is pretty laggy with the .86 hot side.

Shout out to all the 1.8 guys that will be yelling at me! Sorry for liking 1.6's and their mediocrity!
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Old 12-05-2018, 09:08 AM
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I am going the same rout on my build. I have what looks like a low miles short nose short block in amazing shape but with a bent #3 rod (bet it was boosted). I have picked up 2 long blocks, a short block, and a whole running 91 automatic for a total of $175. $240 set of Maxpeeding rods ("taking leaps into your engine!") And a couple hundred in gaskets and such and I should be set.
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Old 12-09-2018, 10:36 AM
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What turbo do you plan on running when all is said and done? I'm really leaning towards getting myself a proper 2560 since i really love the quick spool on my t25 but obviously it is tapped out at 14psi; but i think a 2560 will ultimately limit me. I'm unsure of how laggy a 2871 will be even with a .64 exhaust housing. the .86 hotside on my "t28" ebay turbo hits hard but the transient response really leaves a lot to be desired.

A limiting factor of mine that I realized after the fact is the FF640's, but i never really plan on running e85 and am aiming for around 250 wheel realistically to preserve my 5 speed.

Have been slowly ordering parts to get things off the ground but will be a while before everything is done. I'm working on getting the short block assembled and then i'll be sending the head off to the machine shop to be refreshed.
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Old 12-09-2018, 02:24 PM
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I have the TD04 manifold, so I am using a totally different set of turbos. The 2560 is probably right for you. I am currently running a TD04L-13T off a 2006 WRX (got one with only 20k miles on it). Long term, I plan to do the 19T upgrade which should flow enough air to make around 280 to the wheels. The 13T is going to tap out around 220-230.
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