Miata Turbo Forum - Boost cars, acquire cats.

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-   -   If this doesnt make 400whp Im burning it (https://www.miataturbo.net/build-threads-57/if-doesnt-make-400whp-im-burning-96993/)

ridethecliche 07-08-2021 07:55 AM

Still can't believe it took you this long to dive into ebc!

Was so frustrating to tune the pid of it at first when I didn't know what I was doing at all and then became less frustrating with practice and a lot of help.

allofit 07-12-2021 06:42 AM


Originally Posted by andyfloyd (Post 1602916)
​​​​​​
honestly they are pretty dang quiet unless it's really really cold like 32*F and below. I've run wisecos in this block twice. Once from 2004-2015 and now from 2017-2022. The wisecos that came out of the engine I could have reused bc they were in that good of shape but they were a 84mm bore and I went to 84.5mm this time around. I've had such good luck with wiseco I see no reason to run anything else especially not supertech bc IMO they are far far inferior to wisecos

Thanks Andy, you've convinced me. I've ordered 84mm 8.5 Wiseco's for my built engine.

Just saw your latest YouTube video and your struggle fitting the Kraken low mount manifold was reminiscent of my own experience! It is a tight fit! Worth it for the extra performance, though.

Really interesting you were able to get more ignition timing in compared with the FM manifold. Your car sounds amazing.
:skid:

andyfloyd 07-14-2021 08:10 AM


Originally Posted by allofit (Post 1604162)
Thanks Andy, you've convinced me. I've ordered 84mm 8.5 Wiseco's for my built engine.

Just saw your latest YouTube video and your struggle fitting the Kraken low mount manifold was reminiscent of my own experience! It is a tight fit! Worth it for the extra performance, though.

Really interesting you were able to get more ignition timing in compared with the FM manifold. Your car sounds amazing.
:skid:

It is a tight fit but totally worth it. So I have some bad news my turbo took a shit on me. I was tuning the EBC and it was 5th gear at 6000rpm holding 25psi... The turbo compressor wheel just took a bite out of the housing and then the chra just failed and it was a smoke show behind me. It was late at night and I made the mistake of driving about 6 miles back to my house. The car burned like 2qts of oil in that time and when I drained the oil it looked not the best but not the worst......I already have a gtx2867 that I'm gonna be fitting to replace the 2860, but the bigger issue is with the motor. I pulled the cam caps and they look great, but I'm not sure about the main/rod bearings. I'm gonna start it and let it run then drain the oil again and check for metal. I might be pulling the engine out to refresh the bottom end not sure yet.

andyfloyd 07-14-2021 08:12 AM

latest video

der_vierte 07-14-2021 10:02 AM


Originally Posted by andyfloyd (Post 1604334)
It is a tight fit but totally worth it. So I have some bad news my turbo took a shit on me. I was tuning the EBC and it was 5th gear at 6000rpm holding 25psi... The turbo compressor wheel just took a bite out of the housing and then the chra just failed and it was a smoke show behind me. It was late at night and I made the mistake of driving about 6 miles back to my house. The car burned like 2qts of oil in that time and when I drained the oil it looked not the best but not the worst......I already have a gtx2867 that I'm gonna be fitting to replace the 2860, but the bigger issue is with the motor. I pulled the cam caps and they look great, but I'm not sure about the main/rod bearings. I'm gonna start it and let it run then drain the oil again and check for metal. I might be pulling the engine out to refresh the bottom end not sure yet.

Hey Andy, sorry to hear that... Maybe you got lucky, my dad accidently drove his old bus with about 1/2 of the oil inside for like 50 miles and it survived! Remember that it didn't run all that long without far too little oil, the first few miles must have been with a somewhat okay oil level.

Do you think, that it bit the dust, because you havn't had someone balance the assembly after changing the compressor wheel? I remember asking you a few months ago and right now I'm happy to say, that I have a balanced CHRA

andyfloyd 07-14-2021 11:52 AM


Originally Posted by der_vierte (Post 1604344)
Hey Andy, sorry to hear that... Maybe you got lucky, my dad accidently drove his old bus with about 1/2 of the oil inside for like 50 miles and it survived! Remember that it didn't run all that long without far too little oil, the first few miles must have been with a somewhat okay oil level.

Do you think, that it bit the dust, because you havn't had someone balance the assembly after changing the compressor wheel? I remember asking you a few months ago and right now I'm happy to say, that I have a balanced CHRA

I think it has everything to do with the unbalanced chra. It was fine for a long time but I was getting 25psi at high rpm and I bet the compressor saw a blade rpm that was higher than it's ever been and that imbalance reared its ugly head.

der_vierte 07-14-2021 12:46 PM

Do you have log at 25psi showing power? :giggle:

andyfloyd 07-14-2021 05:31 PM


Originally Posted by der_vierte (Post 1604361)
Do you have log at 25psi showing power? :giggle:

​​​​​​ unfortunately no. Lol. I did the low boost setting 18 psi ramping up to 20psi. Then I went to do high Boost I got in like 2 pulls and then the turbo just ate itself alive. If my engine is infact ok this GTX 2867 should be nice.

shuiend 07-14-2021 06:54 PM


Originally Posted by andyfloyd (Post 1604381)
​​​​​​ unfortunately no. Lol. I did the low boost setting 18 psi ramping up to 20psi. Then I went to do high Boost I got in like 2 pulls and then the turbo just ate itself alive. If my engine is infact ok this GTX 2867 should be nice.

Legit Garrett 2867 or a Pulsar?

andyfloyd 07-14-2021 07:39 PM


Originally Posted by shuiend (Post 1604389)
Legit Garrett 2867 or a Pulsar?

Pulsar😬 Mike at kraken is a dealer I got it for 500 bucks or so. I thought I'm gonna give it a shot and see how it does. Especially since I'm not sure if my engine is ok right now

Fireindc 07-15-2021 12:09 PM


Originally Posted by andyfloyd (Post 1604391)
Pulsar😬 Mike at kraken is a dealer I got it for 500 bucks or so. I thought I'm gonna give it a shot and see how it does. Especially since I'm not sure if my engine is ok right now

I've just recently heard about these Pulsar turbos. Was your previous turbo a genuine Garret? Keep us posted, and sorry to hear about the (more) carnage.

andyfloyd 07-16-2021 07:43 AM


Originally Posted by Fireindc (Post 1604419)
I've just recently heard about these Pulsar turbos. Was your previous turbo a genuine Garret? Keep us posted, and sorry to hear about the (more) carnage.

My original 2860 was used, it started life as a gen1 GTX but I removed the compressor housing and wheel and swapped over arashi wheel and housing. Arashi is another company who makes very high quality copies of Garrett stuff. I then ran this turbo for a year before it bit the dust last week. The pulsar stuff is definitely a very very good copy but I'll be interested to see how it performs, there isn't really any reason why it shouldn't act exactly like a Garrett looking at the thing its actually really nice.

der_vierte 07-19-2021 06:44 AM

Hey Andy,
how's your engine?

andyfloyd 07-19-2021 09:04 AM


Originally Posted by der_vierte (Post 1604663)
Hey Andy,
how's your engine?

Finished putting the car back together yesterday. Let me say this....I had at least a quart of oil in my intercooler. I pulled all the pipes and flushed everything out. I ran two cycles of oil through the engine to pull out most of the muck. Then I filled with vr1. Upon first start the oil pressure was 85psi and it remained strong as the car warmed up. Tons of residual oil smoke burned for the first 30 minutes so me and my buddy decided to hop on the interstate.....

Upon entering the interstate we are greeted by a dodge charger so he wanted a piece and I obliged by rolling him up. Not 5 minutes later modded f80 m3 wanted some and I rolled him up as well. So the car seems to be ok lol. Only time will tell though

der_vierte 07-19-2021 01:35 PM

And the 2867? Need to know these things :D

So glad your engine seems to be okay

boileralum 07-19-2021 01:35 PM

So many burritos to be tossed

andyfloyd 07-19-2021 02:11 PM


Originally Posted by der_vierte (Post 1604692)
And the 2867? Need to know these things :D

So glad your engine seems to be okay

I haven't logged it yet. I need to actually add a little tension to the wg it's spooling about 400rpm slower than the 2860 so it's hitting full boost around 3900-4300. The turbo feels really good after 5500 where the 2860 was getting really high IAT. Once I log it I can compare to the 2860 and see where they stack up.

andyfloyd 07-19-2021 11:36 PM

Got a chance to datalog it tonight. Its running 18psi tapering up to 21psi by redline. I could turn it up more but the Deals Gap trip is coming up and I dont want to blow it up lol. The 2867 spools quite a bit slower but makes more power afrer 5500 rpm with less boost and lower IAT. The spool is slower but its still very good overall. This turbo feels like a ,86 hotside. Its stamped .64 but it was physically larger than the garrett housing so who knows, So far the Pulsar turbo is doing quite well but only time will tell the full story.
https://cimg3.ibsrv.net/gimg/www.mia...f86fb8faf3.jpg

Dr.Sep 07-20-2021 06:55 AM

Looks a little like my 6758 spool up (pulsar seems a littttttle later, but not terribly so) — good stuff Andy!

andyfloyd 07-20-2021 06:03 PM


Originally Posted by Dr.Sep (Post 1604783)
Looks a little like my 6758 spool up (pulsar seems a littttttle later, but not terribly so) — good stuff Andy!

Yea to be honest the only thing that is slighty disappointing about this turbo is the spool. Im used to my 2860 hitting HARD at like 3600-3700 this turbo is about 500rpm behind it. Im gonna add some tension to the wg and see if spool will pick up. I already have the EBC holding the WG closed until 17psi so this might just be how it wants to spool.


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