When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I guess I didn't take into account your ECU choice with the sequential question haha. I only ask because I did a lot of work to keep mine sequential for a while (diy fabco solenoid rack) but eventually went non-sequential at the end of the day with mine when something went wrong again later on. I don't know what power I ended up with but pushing 12+psi on the stock turbos (even with a ported wastegate it would creep a little) definitely maxed out the stock injectors, probably pushed the duty cycle further than I should have, so you may wanna just toss some slightly bigger injectors while your in there if you can for now.
I guess I didn't take into account your ECU choice with the sequential question haha. I only ask because I did a lot of work to keep mine sequential for a while (diy fabco solenoid rack) but eventually went non-sequential at the end of the day with mine when something went wrong again later on. I don't know what power I ended up with but pushing 12+psi on the stock turbos (even with a ported wastegate it would creep a little) definitely maxed out the stock injectors, probably pushed the duty cycle further than I should have, so you may wanna just toss some slightly bigger injectors while your in there if you can for now.
Did you have a fuel pump rewire? I've purchased the kit, and a 255 pump, in hopes that I can keep fuel voltage/pressure from dropping, a known issue on the stock wiring. I will consider a secondary injector upgrade though, maybe leaving the OE primarys for idle/cruise. Thanks for the input!
How did you like the car non-sequential (vs sequential) since you've tried both? How'd the car feel at 12+psi? Should be in the 300+ whp territory.
I did have a fuel pump, but the power fc was showing 95+% duty cycle on the injectors which was concerning. That very well could have been more fuel than it needed, but I sold it pretty soon thereafter so I just let the next owner know not to push it until it got tuned/maybe turn the boost down a hair.
It felt pretty good non-sequential still. I did prefer sequential but at that point for me it was not worth keeping. 12psi was enough extra kick to feel good on the stock turbos too.
Continuing the wire wheeling I came across another rust spot, this one on the seat belt anchor:
It was big enough that I felt like the only option was to cut it out, learn how to weld, and patch it. PIcked up a little flux core harbor freight welder and gave it a shot.
Not too bad in there once I got the rusty spot out.
This **** was paper thin, not really a flux core's forte. Or my forte, I have no idea what I'm doing. But some youtube and testing gave me confidence to send it, I couldn't make it any worse.
Pretty much just tack welds all the way around + grinder to get it looking decent.
Re purposed the seatbelt nut:
Made a new seatbelt bracket.
They aint pretty, but good penetration at least.
I'm pretty happy with that. Acceptable, and I trust it for the belt anchor. It's getting undercoated soon so not too worried about looks. I did grind the welds down a bit to smooth things out before undercoating.
Hell yeah dude! Props for picking it up and sending it with the welder after just watching some vids on it.
inb4 custom fab'd parts start showing up on the Miata.
Ha, thanks man. I'll have to post up some pics, I was able to lay some fairly nice beads on some thicker steel plates. But that 22GA sheet metal the flux just tears through if you try and lay a bead, so I basically did a bunch of tack stitch welds to get it in there. I've got some more sheet metal repair to do, including some projects on the miata (needs a new battery tray, and the triumph needs an exhaust) so my "fab" work will definitely be making more appearances.
I certainly ain't no welder but happy to have this thing to be able to fix stuff that was previously impossible to me.
Overhead 22 gauge flux core for your first welding project. Nice!
Stitch welding is really the only way to do something that thin with a wire feed. Even if you could, you wouldn't want to lay a continuous bead due to warpage.
I keep telling myself I'm almost done. I'm not, but it helps. That said, I do think I'm done with the worst part of the chassis, overhead angle grinder with a wire wheel is dangerous, and it sucks painting upside down. Well really everything sucks under here, the quickjacks make this bearable but I can't wait to have a real lift.
A few shots of what we're dealing with. Fortunately no more holes were found, this was all surface rust and came off fairly easily:
After what felt like endless hours of wire wheeling:
Suited up to start painting.
Masked off:
Failed to take a pic of it primed. But the gray is the same corrosion inhibiting primer that is intended for use with the raptor liner.
Finished product. I'm just doing it in digestible sections. Next will be the engine bay:
All said and done my repair doesn't look to terrible. Totally happy with this.
Heck yeah dude! Lotta work but the final before and after pics are gonna be so satisfying to see!
I've got an area on the roof of my van that the PO hit and subsequently bondo'd. The bondo cracked at some point and I can see trails of rust coming out from underneath it. I'm gonna tackle that project next week. Never knew about Ospho or corrosion-inhibiting primer before this thread. Will definitely be grabbing both of those for the repair. Thanks for inadvertently turning me on to them!
Haha, glad I could help! I've learned more than I've ever hopes to about rust products. Will come in handy on some of my other projects though.
I did pull the bumper on this thing and it wasn't too bad under there! Good stuff. Also mocked up this hot boi bumper that came with the car and I think I have to run it. It's in better shape than the oe one that came on it and tbh I like it.
Also, pretty impressive meltage from the oil cooler. Ive seen this once before on the legendary BenR's miata, but that was after track laps on a supercharged b6. Rotarys are great for making heat, cooling mods to come!
07-17-2024, 07:02 PM
0
