Did you shear the dowels on the cam? Or did your tensioner die on you?

Some bent valves aren't a big deal, I had a re-used tensioner crap out on the Laser last year when I was breaking in a fresh build and we didn't know it. Skipped a couple teeth (2* per tooth ) and died.

But I made the mistake of thinking it was tune related, fired the motor back up and made it drive home, chewing on all 8 intake valve hats the whole way.

Popped the head, checked the valve guides, checked the piston tops replaced the valves, scraped the old gasket off threw in a new one, re-moly'd the head studs, primed the oil pump and fired her up.

No problems since. Just polish up any dings or knicks on the pistons and make sure none of the valve guides are FUBAR'd and you should be good to go.

If you aren't 100% that the valves are bent and don't want to disassemble try a compression and leak down test and rotate the crank with pressure in each cylinder.

Helps to have someone else to put their hands over that cylinders intake/exhaust ports to feel the pressure. Soapy water on the valve cover and crank case breathers help too. Tell the boys to think of this as growing pains!

 

My son doesn't think the valves are bent because the ground straps were the original problem. We put fresh gas in but it has ethanol in it, the premium that was in there before was Marathon and I believe it was ethanol free too. I hope to work on it this weekend but its up to my son. My son thinks a injector is stuck open and it needs new plugs. We ran it a tooth off but my son put the adjustable cam gears on from his car and its his fault it slide 20 degrees off. We dont like the custom oil pan because the return line seems to be in the oil and thats not good for the turbo. We just have more work than we thought but for a grand for the car its an investment that will make money. I think the motor has 40 minutes tops since we bought it and it has new oil in it.

 

Eh I wouldn't worry about the E10, I used it for years before making the leap to BP recently on your suggestion. I run lots of boost year round with and without meth and it puts up with a lot.

Late in the fall I was running 26-27psi and 15 timing on Shell E10 93 alone!

Granted I am on a very large very efficient compressor. I don't know what turbo that kit was using.

That is the only draw back to the adjustable cam gears vs. fixies. But it is a lesson you learn once and never need it again! If this is an interference motor with a decent sized cam you may need some new valves, its not the worst that could've happened fortunately.

And good point on the return line you want as little backpressure as possible on the return line, which means it should be above the oil level. Obviously crankcase venting/vacuum plays a part here too, but on most turbos the oil should be leaving the center section at around 30-70psi depending on whether it is a journal or ball bearing turbo.

 

We are making progress on it, the body work is done and painted but until we tune the motor we are stuck. We have someone that will tune it but hes a friend with a business and he gets it confused. Tuning the car as a customer compared to a friend. I want to be there when tuning so I will learn how to do it and can make adjustments as weather changes.

 

I could probably help, I would just have to get more familiar with your hardware.

I would love to teach you as we go through you already have the vast majority of what you need to know.

 

I believe its a Hondata s300, I will talk to son about what we want to do. Neither my son or I know enough about tuning turbos but since being on this site I have a better idea.

 

and... BINGO was his name!!! you would definitely have a few thread lurkers and readers the needed boost to boost.

and maybe by then I would have me our own house with a 2 car garage in a few months time to finally do a little boost project myself too.

 

That would be pretty cool.. having multiple boosted GEs in Illinois on several different forms of boost! Both AT and MT!

I am finding that as my inbox is filling up I am starting to lose track and fall behind in responses...

So one big comprehensive thread where I can flip back and forth, like my tech thread in the FI section, might be easier and then I and others could consult people on their plans or ideas. Better yet, then we would have searchable material for everyone else.

Unless it is a race car or something competitive, which I can still do via PM obviously in complete confidence.

Not that I am the arbitrator of what is good, of course.. I just think that there are a ton of people who have the ideas and the means to do some great things with their Fits, but just maybe not sure where to start or what they need to accomplish their goals.

Texas Coyote for instance has gone ahead with his plans to incorpate methanol injection with his Rotrex, haven't heard back from him in a few days since he last PM'd me so I am hoping he is wrenching away!

My plans for the GD keep getting delayed for other obligations unfortunately, but I would be more than happy to help anyone with optimizing their setup. Or even designing and choosing parts.

You just need to tell me what your goals and preferences are and I can definitely point people in the right direction.

 

been hanging around once in a while at a shop lately that's doing a build just taking it easy and bracing myself not to go compulsive LOL

 

I have been starting my build, mostly just researching the parts I need. This thread is very helpful, so thank you for that!

I have experience with tuning turbo vehicles, and some custom s/c setups in the past, but this it my first ground up turbo build, so I consider myself a complete noob again.



Lucky for me, I still have some parts left over from my old builds, so I won't have to buy everything.

The big things that I already have are an innovative wideband with gauge, and e-manage ultimate, from an earlier project that never went anywhere. I plan on installing these very soon, for datalogging as you described. I was really hoping to have a boomslang harness to install the e-manage, but it doesn't look like that it going to happen, so I guess I will be cutting the factory harness.

Did you find a pinout somewhere? So far, I'm coming up short on that. I can probably trace everything I need, but the TPS is going to be a pita because of the intergrated ETC setup.

 

Hi all,
hope not to bore everybody, but I think oz honda fit (aka jazz) use the same ecu connectors and pinout found on EDM Jazz (different from USDM one). Is there any aussie around willing to share info on ecu pinout?

TIA,

 

This thread needs a bump.

Am I really the only one sourcing parts for my own Turbo build? Thanks to DSM for great info as always.

Just an FYI to everyone, I emailed boomslang about getting a patch harness, and they said Honda has restrictions on the ecu connectors for the fit, and they can not get them. You'll have to cut into the factory harness for your piggyback. (On that note, anyone have the ecu pinout for the GE8?)

 

I'm working on the pinouts & just pm'd DSM concerning obd2 issues & a cel free transformation. These issues are the 1st that comes to mind, otherwise its not worth it to me

 

I got the pinout a a few days ago, and am in the middle of installing the fic now.

What are your obd2 issues?

I ordered an 02simulator for the downstream sensor, that removes the cel for a missing cat. There are versions that simply mount the sensor away from the exhaust, but this electronic version has worked the best for me in the past.

Universal o2 simulator single output [unv-o2sim1] - $40.00 : O2 Simulator, E-commerce

 

Mainly drivability with the fuel trims constantly adjusting itself.

Missing cat, you mean the one closest to the head.

Just have to review what I have so far. Most of the pinouts are in plug c, just need to double check. I have an extra harness so I'll be using that

What manifold & turbo are you going to use?

Pat

 

Oh ok, are you using the fic on the stock engine right now, or do you already have the turbo?

Yeah, the one that is part of the "manifold" If you want to call it a manifold lol.

Yeah, most are in plug C. I just got done labeling every wire I need so it'll be easier to install.

Not sure on the turbo yet. I'm still going back and forth on internal wastegate and cheap, or external and more $$ up front. I'd love to do external (the right way) but may have to go cheap for now. What route are you going?

 

Nah, the fic is sitting next to the harness, I'm thinking of extending the wires so the unit is under the dash above the brake pedals. If you wouldnt mind sending me the pinouts so I can verify them, that would be great or I can send you what I have

I'm going internal wg, leaning heavily to a garrett gt2554R, I've had much luck with garret stuff...with a vibrant 350hp intercooler 26x6.5x3.25. External is more plumbing & there isnt much room, but its dead on reliable.
I dont think I going to ever run more than 16psi, mostly 9-10 since its a DD as well, may run it in some chin motorsports

 

I was thinking about mounting it inside, but I'm going to make a water proof box instead, and just mount it under the hood.

Sounds like a good plan. I'm going to be using mine as a dd as well, so thats my other concern.

Here is the ecu pinout right out of the service manual.

http://db.tt/2f5SefkM

 

Hey Pat, I did get your PM

Just now got a moment to sit down and saw you guys were active in here so I thought I would reply here.

That intercooler is perfect for this application.

If Schoat wants to share what I sent him via PM regarding the internal gate on the 5-bolt T25 flanged GT25Rs vs. the T3 footprint turbines with external gate... I hope you guys will take that to heart.

The premium of the external gate is worth it in the long run, ask Lyon.. or really any other small internally gated turbo owner.

If you guys were serious about an internally gated turbo, I would take a good long look at a MHI 7cm2 housing TD05H "Small 16G" turbo.

The first turbo setup I had on my GD was a .64A/R T25 Flange GT2554R, which in my opinion is just a hair too small for this motor. The absolute smallest compressor/turbine combo I would go with for even a mild performance application on a Fit would be the GT2860 in the .86A/R T25 flange turbine housing with the 53.9mm turbine wheel.

My favorite turbo for most people, which more than a few guys are running on my design right now around the world, many in hot humid climates on admittedly poor fuel quality.. is the 2860RS in the 4-bolt T3 flanged turbine (in both .63 and .82 depending on build/goals) with a 38mm external gate.

Best part is you'll move more air then the T25 flange 2554R or 2854R with the 2860R's bigger 47mm/60mm compressor and as close as the GT28 and GT25 turbine wheels are in size.. the change from the T25 housings to the T3 housing will allow you to make significantly more power per PSI boost. Which for most people means they can run less boost and more timing/leaner fuel scheme

Resulting in a more efficient setup overall and far more friendly on pump gas and your engine internals.

Because of the GT28 turbine's aero it'll still spool very fast. I have more than a few guys reporting 15psi coming up @ 3100rpm in 3rd gear. And it holds FLAT to redline. Which is just a tad later than the 1.8 liter Miata guys are reporting, not bad for the 300cc/rev difference in exhaust gas flow and a relatively restrictive exhaust side/cam combo.

The small 16G would be basically the same story but might sacrifice a couple hundred rpm spool, but has more room to grow (39-40lbs/min @ 15psi at sea level) and would actually be more efficient in the upper rpm vs the T3 2860RS (35lbs/min max flow @ 15psi boost at sea level)

 

Thanks, I have that, just wanted to verify which ones corresponds to the wires on the fic.

What other parts have you sourced for this project