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Another moderate power thread that hopefully wonít stay moderate

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Another moderate power thread that hopefully wonít stay moderate

Old 01-19-2018, 12:12 PM
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Hi all. Iím happy to say that my miata is finally turbocharged. Iím running the usual setup- td04 13t, 420ccís, diypnp ms2. So far she is running good with no problem with a street tune using autotune at 8psi. Future plans are ordering a kinugawa 19t billet wheel and housing and throwing in a set of forged rods, bearings, studs, head gasket and aim for the 250whp mark. Iím wondering if it will help if I use stock 94-97 pistons to lower the cr and keep costs down.

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Old 01-19-2018, 12:52 PM
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I'm same place. 420cc not enough to support the 13t, just put in FF. The TD04L-13t is still all I want, however. I just want to maximize it. From many builds, that seems to be about 235WHP.

See other threads about the futility of 19T wheel. Vlad says swap in a VF Something-Something to accomplish what you want.

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Old 01-19-2018, 03:51 PM
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Originally Posted by DNMakinson View Post
I'm same place. 420cc not enough to support the 13t, just put in FF. The TD04L-13t is still all I want, however. I just want to maximize it. From many builds, that seems to be about 235WHP.

See other threads about the futility of 19T wheel. Vlad says swap in a VF Something-Something to accomplish what you want.

Put your location in your profile, so it shows under your name in the posts.
Yes Iím considering a IHI vf something as well. Iím following your thread, nice work. How much boost are you running are are you with stock internals?
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Old 01-19-2018, 04:46 PM
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I have had excursions to 210 kPa with no known ill effects.

To be clear, I am staying with the TD04. I was only suggesting you go to the VF. I should be good with the 235 or so WHP, which should remain safe.

Question will be how much boost, and therefore torque, I apply at 4500-5000 RPM. In other words, the compressor map on the 13T should deliver the same HP at the lower RPM. That's my thought.

Wow, you may be the first Bulgarian. Welcome.
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Old 01-19-2018, 06:04 PM
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Originally Posted by DNMakinson View Post
I have had excursions to 210 kPa with no known ill effects.

To be clear, I am staying with the TD04. I was only suggesting you go to the VF. I should be good with the 235 or so WHP, which should remain safe.

Question will be how much boost, and therefore torque, I apply at 4500-5000 RPM. In other words, the compressor map on the 13T should deliver the same HP at the lower RPM. That's my thought.

Wow, you may be the first Bulgarian. Welcome.
Thanks
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Old 02-08-2018, 07:31 PM
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Ordered the 19t billet wheel. I'm curious what its gonna be like. I may up the boost a little bit to 170-180kpa but wont go too crazy until I change the rods. Lets see what the bigger wheel can do
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Old 02-18-2018, 05:30 PM
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Some progress. Billet goodness
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Old 03-10-2018, 06:29 PM
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19T installed and it makes quite a difference. Worth it!
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Old 03-10-2018, 07:13 PM
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dyno or butt dyno? carpassion channel has a video on shinny billet wheels and their affects on butt dynos.

He did show an improvement on the dyno though, just not a huge difference. He figured its a 7% decrease in the amount of time to build psi at certain rpm ranges... or something like that
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Old 03-11-2018, 08:27 AM
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Originally Posted by 90LowNSlo View Post
dyno or butt dyno? carpassion channel has a video on shinny billet wheels and their affects on butt dynos.

He did show an improvement on the dyno though, just not a huge difference. He figured its a 7% decrease in the amount of time to build psi at certain rpm ranges... or something like that
Butt dyno only mate haha. Thereís another guy with the same upgrade and heís gonna dyno it in the upcoming weeks so we should have a before and after comparison.
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Old 03-11-2018, 03:35 PM
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here's the vid if you're interested:
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Old 03-11-2018, 07:19 PM
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Right I played with open loop ebc today and added 3 psi which is what i wanted but a problem occurred. The AFRs started fluctuating like crazy. I used tune analyze live during the run but it doesn't seem to get any better. Do you guys think that the wideband needs calibrating or i just need a tuneup? Or could it be the stock 18 year old fuel pump with not enough flow?
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Old 03-11-2018, 11:35 PM
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If the issue started up top when you turned up the boost, then Id guess fuel pump as well. I also wouldnt try to autotune in boost like you seem to be doing just now!
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Old 03-19-2018, 03:42 PM
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Right. So I got a few bits ordered. AEM fuel pump and ev14 mustang injectors are on their way and made a hardwire harness for the pump while I'm waiting. Also I purchased a set of Manley rods from a mt member. I haven't opened up an engine before so I was wondering if someone could share some wisdom. Can I just install the rods with standard size acl rod and main bearings if the crank has no scoring? Do I have to change the counterweights on the crank for the Manley rods? Cheers
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Old 04-11-2018, 12:10 AM
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What about the piston rings? You're going to re-ring right?
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Old 04-11-2018, 02:39 AM
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Originally Posted by ridethecliche View Post
What about the piston rings? You're going to re-ring right?
I bought a set of wisecos 84mm from here so will be boring the block. But that in another time.
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Old 04-11-2018, 11:33 AM
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Originally Posted by Pepovr View Post

I bought a set of wisecos 84mm from here so will be boring the block. But that in another time.
so you're just going to do the rods now right? You have to pull the Pistons out for it. Will you just be dropping them back in or will you re ring them?
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Old 04-12-2018, 10:57 AM
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Check your injector duty cycle in those logs. The stock injectors get stuck open up fully at ~80% iirc , which can cause you to go full rich.
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Old 04-12-2018, 12:11 PM
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The wideband wires got pinched from the gearbox so that was causing the afr jumping around. Anyway got some ev14 injectors and got the car tuned. Running 14psi at 60% duty. Gonna drive it like this for a while and then going fully forged with wiseco 84mm pistons and manley rods, billet pump gears etc. Pistons came out of a bp05 any idea if theyíre gonna clear the bp4w head?
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Old 05-13-2018, 01:41 PM
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A little update. Got the car dynoed and is pushing out 230whp with the current setup. Gonna try to hit 300whp any suggestions for a suitable turbo? Will a gt2860 do the job?
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