OK. Thanks. Just curious idk why BC I've seen many fi kits w spacers and I got one from z nats and just curious

 

The max isn't really the issue. I don't doubt that they'll static flow 550cc/min. It's getting even flow across the injectors at, say, 65% duty cycle where the problems set in. That's more than enough load to knock the ring lands off. If you have large variances across the set, you're running some cylinders lean while others are running rich, even if the lambda sensor says everything is peachy. I really would consider changing them, or at least pulling them and getting them dynamically flow tested, just to make sure there's no problem. I'd like it if this car hauled *** for a long time.


Edit: Here's a great MotoIQ article with pics of how bad some of these injectors are: http://www.motoiq.com/MagazineArticl...Injectors.aspx

The bulk of the article isn't exactly practical- the idea that any tuner would have that degree of test capability is a bit ludicrous, but any tuner worth his salt should have a reputable flow sheet to work from. And if you're taking your car to a tuner, you should have a flow sheet to give him so he knows your injectors aren't sh²t.

 

I see. I'll pull spark plugs and check to see where I'm at between cylinders. They should be able to tell me if I'm not running lean, rich or same in all cylinders.. I would purchase a set of GTR injectors like you stated for $250(saw a set on ebay for this) before spending $75-100 to get these flow tested.

I also did a lot of googling the company and I would say 75% of the reviews are bad. hopefully I put enough miles to have the spark plugs affected. I don't really want to blow my engine due to the injectors(that's just silly) also I do not want to do the labor to install a new built engine nor could I justify paying $4500 for one anyways for a car that barely sees 3k miles a year.

Though I will take your advise and look into it. thanks

 

If you do decide to go for GTR injectors, just go on NAGTROC/GTRlife and get them there. I grabbed a set last week for $200 shipped. Probably could have gotten cheaper, but I hate bargaining.

I like the budget builds. Any idiot can checkbook engineer a fast car. It takes intelligence to do more with less, safely.

 

Took the entire hot side of the kit completely out of the car two weekends ago due to exhaust leaks.

Bought all new clamps and copper v-band gaskets.

Installed some more 1800 degree exhaust wrap on A/C lines (doubled them up because I do not want to replace them)

Sanded every flange end to smooth out to try to get rid of these exhaust leaks.

Installed 7-8psi spring(I think)

Purchased the UTEC wideband gauge/adapter for easier tuning(it's pretty good anyways with the tune from the UTEC website with slight modification)

Got half of it installed last Sunday, but ordered the wrong V-band clamps and though I could pick up wastegate gaskets at autozone. Will finish installing this Sunday.

 

I never changed my stock Iridium NGK's. Any idea if I should go with a heat range 6 plug or has anyone ran around 350whp with the stock plugs? I will be driving the car this Sunday hopefully(only for a few miles around the block since my plates have been expired since November since I haven't been driving the car for the winter)

 

At that power the stock plugs are just fine.

 

Didn't get a change to drive.
Installed cheap nismo replica exhaust off ebay and it sounded exactly like stock. Took it off due to not fitting too well and purchased an exhaust cutout with a wireless controller.

Also when installing the exhaust it made the exhaust at the y-pipe start to leak even with my copper gaskets in place(didn't leak before I installed ebay exhaust) I am going to take the copper gaskets out and install 100% graphite gaskets.(on only the y-pipe flanges)

On a side note I was barely able to get the car to boost in neutral and make the BOV go off. I can now do this with the spring swap(should of made a different) and just taking it out and sealing the exhaust leaks

 

100% graphite v-band gasket. The copper ones didn't work well because I could not get enough pressure to make them seal. The graphite will seal at much lower pressures and can withstand 3000 degrees

 

Sorry if this comes off the wrong way- but is this still the budget turbo build or did you accomplish that and now you're moving on to improving the kit?

As a bit of a spectator (and don't get me wrong- one with ample respect for the work you've put into it and the knowledge you have), if you paid yourself for the amount of time you've put into it so far and all the stuff you've done to it so far... I'm having a bit of a hard time seeing if it's still considered a low cost turbo build?

Well- okay... I'll correct myself there. Low cost and budget aren't exactly synonimous here... but I think you know what I mean.

Reason I'm asking is even for a guy who knows what they're doing... would it actually cost more to do it this way than actually buying the solid brand name parts (taking time into consideration).

 

I'm around $2000 for the build. Worst part of the kit was the sealing of the v-band clamps, which is now perfect. If i did the graphite gaskets in the first place it would have been fine. I probably would have done a custom rearmount setup if I were to do it again, but it still would have cost around $2000

 

I think you may be looking at it the wrong way. I see this repeated on every car forum I've ever been on.. To try factor the cost of a person's time into their hobby makes it no longer a hobby. Time you enjoy wasting is not wasted time, even if it's spent improving/fixing something you didn't expect to be perfect in the first place.

For some people, it's not all about the end result. It's about the process of improving something that makes them happy. Some people get a kick out of seeing how fast they can go using their brains/skills instead of their credit card.

More power to 'em (pun intended).

 

I just grabbed GTR injectors for 135 shipped and had many other people contact me wanting to sell. I would go that route.

 

Hmmm what's the flow rate on the gtr's? 570cc i googleds
Ever consider ditching the v band set up?

 

That is an entirely valid statement and you're right- I hadn't really looked at it that way.

 

I actually was going to purchase all 2-bolt flanges and completely replace the v-band set-up. I realized this would take a lot of time for fitting and decided against it. The graphite gaskets I think are going to hold up perfectly fine, plus I didn't have to drop any part of the kit to install them.

 

This is me. My "golf" is right in my garage. Have not driven this car in many years but am really enjoying the journey of working on it.

When I got my car back from the awesome bubble shops the HKS exhaust system was only supported by the 3 down pipe bolts and at the very rear and as I disassembled it found it was leaking like crazy.

Here is shot of the totally fabricated fix.





then I get to have fun beating my cheap Miata to death

 

update?

 

Not anything really important. Haven't taken it out yet this year. Waiting for a bumper to come in the mail so I can get it inspected

 

UP.