So where did we leave off?? Right.. a bad rod bearing on the 2.5L, bad rod bearings and worn out cylinder bores on the "good used" 2.3L... The 2.5L rod had enough hot spotting, plus my feeling that there was issues with the chamfer job I did on the crank shaft oil galleries.. I pulled the 2.5L out of the car and tore it down... To my surprise I found some scoring on the cylinder walls.. It wasn't bad.. but with the amount of carbon on the pistons.. I figure I was running a little to rich, causing some issues with washing down the cylinder walls... Forged pistons also require proper warm-up and some other special driving habits that I don't think I was really paying attention to...
I took both blocks to a couple of machine shops to get some opinions on machine work and costs.. There's no one locally who really deals with these motors, so the idea of getting into machine work just didn't sit well with me... I happen to come across a person on FB market place parting out a speed6... Again.. video's of it running, good compression numbers... it should be a good motor to drop in right??
Well god dam it!! Another fucking worn out running motor.. This one had a broken VVT actuator and the timing chain was hitting the valve cover..


Lets just say moral around this vehicle was shot... Once again I abandoned the car outside of the shop I worked at.. This time around for about 6 months while I sorted out some other life stuff... One of the things I sorted out was renting a shop for doing my own personal work..
In the back, my 93 Mazda 323 nick named princess.. A very nicely restored 1st gen Bronco getting a sniper efi install.. my buddies Camaro getting some regular maintenance work.. A lovely 2005 Mazdaspeed Miata with 25,000km's on it.. All original..

September of 2023 I melted down... The living situation I moved into after selling my house was a disaster.. said fuck it and bought a motorhome to live out of... Tired of waiting for promises to be full filled with work.... tired of trying to my own projects at home when all my good tools were at work... I quit my job... after 24 years of being a professional automotive tech, I had enough... Time to get all my tools into one location and focus more on my own dreams...
October of 2023 I dragged the speed6 to my own shop.. With all my tools now in one place.. It was time to get this cursed project fixed.. I went through all of the part I had... I decided to ditch the 2.5L, go back to a stock 2.3L block... I picked the best 2.3L block I had.. both of them worn, but one had a little meat left before it would be over the max oem specs.. I got a set of OEM rings, OEM bearings, decided to reuse the Gen 2 pistons and rods from the first motor and basically did a low buck stock rebuild... I was joking around with a buddy of mine, saying the 2.5L failed cause I didn't dress it up and make it look "pretty"... So this motor got some pained work.. cause why not??
My 323 has full polly mounts.. My buddies Speed3 has polly mounts.. I am old and can't stand how a car feels with polly mounts.. In my Mx3, I custom made solid rubber mounts using leaf spring bushings.. They work amazing... My limited time spent beating on the 2.5L in the speed6 left me really worried about the stock mounts.. For good reason, it's known that they are shit... I happened to have a left over leaf spring bushing.. So I did a thing...
Some modifications were made to the subframe for something to get bolted to..

Teaching my son the "binky" ways of CAD... We built a 4th engine mount... The design and concept is good.. but my execution isn't.. Measure once, cut twice?? eye ball it good enough and re-do it later?? I made the part that bolts to the frame with the bushing in it to wide... I've got a diagnosed disability that includes struggles with dyslexia.. when I work alone I am ok, but I am sure at some point I was giving my son measurements and I said the wrong numbers... I thought I'd run it, rather than redoing it... I might as well have polly mounts in the car.. this mount is grounding out causing a far bit of noise in cabin over 3500 rpm... If I narrow the bushing and bracket it'll fix the issue..

A friend of mine came for a visit.. She's an aspiring artist, never played with spray paint before.. So we played around a bit.. Motor's going back together nicely..

Almost ready for it's first Road test... You'll notice the big fancy stainless steel piece... I completed the cover for the cold air box I started building with the 2.5L.. The clearances are tight, when I get into some of the data logs you'll see... This cold air box makes a difference...
Well she looks fairly pretty now... That means she's going to hold up and stay together now right??

Only if I don't do stupid things... My first road test went pretty well.. I brought the car back in went to jack it up to check for leaks and I did something stupid... Using a block of wood and jacking the car up on the subframe from the front of the vehicle I made a big mistake..

No I didn't jack the car on the rad support.. I was using a block of wood because my jack doesn't go high enough to get the car on my good sized jack stands.. As a mechanic you can get lazy when you do things cause you've done it soooo many times.. Well I didn't pay close enough attention to how the block of wood and my jack were sitting on the subframe, as I was jacking the car right when it got to the top it started shifting... Just as I attempted to twist the handle on the jack to put the car down and re-set it properly it slipped.. My jack at full height punched through the rad support and as you can see destroyed the rad, cooling fans, ac condenser and rad support... In complete and utter disgust at myself... I threw some kitty litter on the mess, turned the lights off, locked the shop up and left...
If you ignore the busted rad support, you can see that I cut down the bumper bar during this build.. I also drilled out all the blocked off passages in the grill to match what I cut out of the support... This was to help increase air flow across more of the intercooler..

The car almost got stripped and torn down at this point for good... Almost.. I got lucky and FB market place to the rescue.. a guy locally was selling a V6 2006 Mazda6 with a blown motor for cheap... I almost bought the whole car just for the rad support and to see if I could make the V6 rad and stuff work because this was the ONLY parts available locally... The guy was super cool, he let me strip the front end of the car in his drive way while he was at work... I was really diligent about not making a mess of coolant and stuff like that... The V6 rad requires a remote reservoir that's pressurized.. I forgot to grab the reservoir from the car.. I've got a vibrant piece for making an aluminum coolant overflow tank that's pressurized... I thought about making my own tank.. But decided to spent the money and ordered a proper stock rad from rock auto..
Got the car all back together just in time for some fun in the snow... Lets just say, I quite enjoy a speed6's power split in the snow... It drives more like a rwd car, letting you hang the ass end out nicely under power..

I took both blocks to a couple of machine shops to get some opinions on machine work and costs.. There's no one locally who really deals with these motors, so the idea of getting into machine work just didn't sit well with me... I happen to come across a person on FB market place parting out a speed6... Again.. video's of it running, good compression numbers... it should be a good motor to drop in right??
Well god dam it!! Another fucking worn out running motor.. This one had a broken VVT actuator and the timing chain was hitting the valve cover..


Lets just say moral around this vehicle was shot... Once again I abandoned the car outside of the shop I worked at.. This time around for about 6 months while I sorted out some other life stuff... One of the things I sorted out was renting a shop for doing my own personal work..
In the back, my 93 Mazda 323 nick named princess.. A very nicely restored 1st gen Bronco getting a sniper efi install.. my buddies Camaro getting some regular maintenance work.. A lovely 2005 Mazdaspeed Miata with 25,000km's on it.. All original..

September of 2023 I melted down... The living situation I moved into after selling my house was a disaster.. said fuck it and bought a motorhome to live out of... Tired of waiting for promises to be full filled with work.... tired of trying to my own projects at home when all my good tools were at work... I quit my job... after 24 years of being a professional automotive tech, I had enough... Time to get all my tools into one location and focus more on my own dreams...
October of 2023 I dragged the speed6 to my own shop.. With all my tools now in one place.. It was time to get this cursed project fixed.. I went through all of the part I had... I decided to ditch the 2.5L, go back to a stock 2.3L block... I picked the best 2.3L block I had.. both of them worn, but one had a little meat left before it would be over the max oem specs.. I got a set of OEM rings, OEM bearings, decided to reuse the Gen 2 pistons and rods from the first motor and basically did a low buck stock rebuild... I was joking around with a buddy of mine, saying the 2.5L failed cause I didn't dress it up and make it look "pretty"... So this motor got some pained work.. cause why not??

My 323 has full polly mounts.. My buddies Speed3 has polly mounts.. I am old and can't stand how a car feels with polly mounts.. In my Mx3, I custom made solid rubber mounts using leaf spring bushings.. They work amazing... My limited time spent beating on the 2.5L in the speed6 left me really worried about the stock mounts.. For good reason, it's known that they are shit... I happened to have a left over leaf spring bushing.. So I did a thing...
Some modifications were made to the subframe for something to get bolted to..

Teaching my son the "binky" ways of CAD... We built a 4th engine mount... The design and concept is good.. but my execution isn't.. Measure once, cut twice?? eye ball it good enough and re-do it later?? I made the part that bolts to the frame with the bushing in it to wide... I've got a diagnosed disability that includes struggles with dyslexia.. when I work alone I am ok, but I am sure at some point I was giving my son measurements and I said the wrong numbers... I thought I'd run it, rather than redoing it... I might as well have polly mounts in the car.. this mount is grounding out causing a far bit of noise in cabin over 3500 rpm... If I narrow the bushing and bracket it'll fix the issue..

A friend of mine came for a visit.. She's an aspiring artist, never played with spray paint before.. So we played around a bit.. Motor's going back together nicely..

Almost ready for it's first Road test... You'll notice the big fancy stainless steel piece... I completed the cover for the cold air box I started building with the 2.5L.. The clearances are tight, when I get into some of the data logs you'll see... This cold air box makes a difference...

Well she looks fairly pretty now... That means she's going to hold up and stay together now right??

Only if I don't do stupid things... My first road test went pretty well.. I brought the car back in went to jack it up to check for leaks and I did something stupid... Using a block of wood and jacking the car up on the subframe from the front of the vehicle I made a big mistake..



No I didn't jack the car on the rad support.. I was using a block of wood because my jack doesn't go high enough to get the car on my good sized jack stands.. As a mechanic you can get lazy when you do things cause you've done it soooo many times.. Well I didn't pay close enough attention to how the block of wood and my jack were sitting on the subframe, as I was jacking the car right when it got to the top it started shifting... Just as I attempted to twist the handle on the jack to put the car down and re-set it properly it slipped.. My jack at full height punched through the rad support and as you can see destroyed the rad, cooling fans, ac condenser and rad support... In complete and utter disgust at myself... I threw some kitty litter on the mess, turned the lights off, locked the shop up and left...
If you ignore the busted rad support, you can see that I cut down the bumper bar during this build.. I also drilled out all the blocked off passages in the grill to match what I cut out of the support... This was to help increase air flow across more of the intercooler..

The car almost got stripped and torn down at this point for good... Almost.. I got lucky and FB market place to the rescue.. a guy locally was selling a V6 2006 Mazda6 with a blown motor for cheap... I almost bought the whole car just for the rad support and to see if I could make the V6 rad and stuff work because this was the ONLY parts available locally... The guy was super cool, he let me strip the front end of the car in his drive way while he was at work... I was really diligent about not making a mess of coolant and stuff like that... The V6 rad requires a remote reservoir that's pressurized.. I forgot to grab the reservoir from the car.. I've got a vibrant piece for making an aluminum coolant overflow tank that's pressurized... I thought about making my own tank.. But decided to spent the money and ordered a proper stock rad from rock auto..
Got the car all back together just in time for some fun in the snow... Lets just say, I quite enjoy a speed6's power split in the snow... It drives more like a rwd car, letting you hang the ass end out nicely under power..

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