I screwed around with burning a few chips for the '730 ecm in my last car before I switched over to megasquirt. I can't say I ever learned enough on the '730 to recommend for or against it. All I can say is the MS works well and does what I need.

I run the MSII/Extra code which I slightly modified to work with the coil packs I am using. It supports launch control and closed loop boost control which I plan to use eventually. It supports overboost protection as a nice feature as well.

 

I will have to run after market gauges with MS, I have a 92 L98 Z28 SD, VSS car and MS does not yet suport vss.

 

Correct, no VSS support. I never use that gauge I didn't bother to hook it up.

However, I believe the MS GPIO board does support VSS. There is a preliminary kit out for it now as well: http://www.diyautotune.com/catalog/p...kit-p-392.html

 

You could always install an older mechanical gauge for the speedo.

 

http://cgi.ebay.com/ebaymotors/On-3-...item20aecfaea1

cold 63/92 hot 72.45/84.4
is this good or bad, Sir?

 

The numbers you wrote don't match the ebay AD. That ebay AD looks like a 76mm exducer and probably 50-something inducer (small).
You are describing two different turbos. I don't get what you are asking.

That Ebay AD is all over the place with turbo specs. None of them match up. I would stay far away from purchasing that turbo. I would look for an AD with the real specs. and buy from them if that is what you are looking for.

 

I asked the seller a Q, and thats what they sent to me... wierd I know

 

Start a new thread. This doesn't belong here.

I wouldn't trust any of that info. from that seller based on the info. in the AD.
In your new thread post what size engine and specs you are building. More than likely you will want at ebay GT45 if you are dead set on buying a China turbo.

 

I am not thread jacking...this is a place for info, and that is what I am getting, Bnoble if it seams as if I am thread jacking, I am sorry, I look up to you and your build talents, and just want to pick your brain.

 

I am eternally skeptical of eBay turbos. S400s are proven, bulletproof, and still pretty damn cheap. If you plan to upgrade in the future they're also a little more resell-able than the ebay junk. If you're building a 700hp car, the extra $300 you'll spend on an S400 is a drop in the bucket.

 

Thank you sir, your wisdom and knowlage on this subject has helped me so much, keep up the good work!!! Makes sense to just buy the turbo only once...If you can't afford to do it right, can you afford to do it again?

 

That turbo is well worth the price. Ebay turbos are for "junk" projects, unless you REALLY do your homework and know EXACTLY what you are getting. Gotta have a lot of time on your hands to be willing to do that much research to save that little money.

 

so what if you know what the S400's were originally on and can snag them on ebay for ebay junk prices?

 

Please don't tell. It will be just more people to compete with. My favorite is the no tag name brand turbos sold on ebay. Those can be a good score. Like a 75mm unit for $50.

 

More power to you man Those that do the research reap the rewards

 

I just discovered this thread and wanted to say that your car is amazing man. All the fab work is awesome! Can't wait to see the new pics this season! Great work.

 

Thanks, I'm definitely itching to get the car back out. Summer is easier on the wallet too.. I spend more to heat the barn in the winter than I do to fuel the car in summer

Went back to work on the engine. The main bearings looked good so I put the bottom end back together and moved up to the top end. The rear two cylinders, #7 and #8, both had a very sticky tar-like substance in the intake ports. I assume oil or something was making its way into them somehow. I pulled the drivers side head just to check and cylinder #7 looks fine Everything is copacetic, except for that tar stuff. The 1003 head gaskets also seem to be holding up well. I'll order a new one and button it back up I guess.

 

Is that your return line next to the line with your filter coming out of the sump in the tank? If so that may be part of your fuel pump issues. You don't want the return that closet to the supply as it will circulate the hot fuel coming back from the motor and can also cause circulation issues.

 

for that head issue, what kinda PCV is on the car or oil catch can/ crank breathing system? Also check the cold side of the turbo maybe you need to put an oil restrictor on the oil feed, you could be pushing oil through the turbo possibly?

Jay

 

If you're talking about the fuel pump failing, it was a known fault with the electronics that FuelLab has since fixed. With respect to the return though, you're absolutely correct. I cannot run below 1/4 tank right now without sucking air. I'll be pulling the tank back out before the the season starts to relocate the return and possibly deepen the sump. If you have any other suggestions regarding the sump I'd love to hear them.

Just breathers on the valve covers. No oil is coming through the intake, it is clean. I only noticed the deposits after I removed the intake and looked down into the ports in the heads. It's only in the cylinder #7 and #8 intake ports too. I suspected I was sucking oil past the rocker stud threads but it is clean around that area. Only other thing is valve seals.

 

Bnoble do you think this will work? Its a T-6 flaged merge pipe with V-band conects. Just would like your 2 cents. I ordered it off Ebay.

 

That appears to be a pretty hefty casting. Do you have a better picture of the flanges? It looks like those are designed to clamp to flared tubing.

 

lol, people normally ask for advice prior to purchase
have you started your own build thread scotty?

Bnoble, u gonna have that beast back together for spring, or summer?

i would think the gunk in 7 & 8 runners is prolly just seaping valve seals, with all the g force pushing the oil to the back of the valve covers maybe?

 

[quote=bnoble;4406365]If you're talking about the fuel pump failing, it was a known fault with the electronics that FuelLab has since fixed. With respect to the return though, you're absolutely correct. I cannot run below 1/4 tank right now without sucking air. I'll be pulling the tank back out before the the season starts to relocate the return and possibly deepen the sump. If you have any other suggestions regarding the sump I'd love to hear them.


The sump is ok just add a bung on the tank for your size return line as high and far away as you can from the supply bung. I have done many of these same setups where I had to put the return above the supply and it works. As long as the return fuel is splashing into the top of the fuel in the tank. That will give it time to cool before its next trip to the motor and keep it away from the supply.

 

I have the calendar marked to be finished by the end of March. I've been keeping up with my weekly goals so far. If April is rainy, I may stretch it out a little farther and put some more effort into the interior.

Right now the engine is back together and ready to go in the car. I'm going to keep it on the stand until I clean up the engine compartment and swap in a manual steering box though.

 

Just following up on how the Fuelab Pump is holding up.

 

I've had the car torn apart since December, but I just got it fired up again on Saturday with no issues. The pump sat with E85 in it all winter.

 

Need new pics!

 

http://www.youtube.com/watch?v=rm5DmzJNSwc

I need to get the insurance reinstated this week so I can get it back on the road.

 

Thanks Now Im gonna go cry again! ;-)

 

any updates? you sir are the man, wish I had your set up in my car, now that would be bada$$

 

I haven't been to the track yet, the plan is next Friday. It is running fairly good and up to around 10psi, although it feels a little sluggish after I pulled some timing out. I intend to add it back in when I get the water injection sorted back out.

I did take it out to the country for a nice drive this Friday though, video is here:
http://www.youtube.com/watch?v=8uFZYExYe8o

 

That video is by far the best one i've seen....seriously.

Did you use a GoPro camera?

 

Yep. HD hero with the suction cup mount. Great little camera. It's going to be fun at the strip this year

 

wish i could hear the turbo more than the music...lol still one of the best i have seen

 

Real nice car

I won't say anything about the music, lol.

Nice country too.

 

Thanks. The camera was picking up too much noise from the fuel pump attached directly to the body, so the sound wasn't that great to begin with. I have a separate audio recorder I plan to use when I can find a good way to mount it.

 

I updated the video a little. At the end I added a few clips without the music that the sound came out OK on. Hope that's better

 

Kind of a disappointing day at the track last Friday. I turned the wastegate up a little which led to a lot of boost creep going down the track and prevented me from ever making a full pass. Best was 11.37 @ 113 with a 1.59 60'.

Here's a video of a slower run with a highlight of my traction issues. It hit overboost at 330' and had to pedal it the rest of the way through the 1/4. 11.9 @ 103, 1.81 60'. I'm moving the LCAs up a notch as it seems I'm shocking the heck out of the tires on the launch. I'd appreciate any input from the suspension guys. MT ET Street Radials, 255/50/16 @ 18psi.

http://www.youtube.com/watch?v=buW5zA_VZgw

 

What size gate, and how much boost was dialed in during that run....?

 

60mm gate turned to about 10lbs. It held steady at 7lbs last year and held 10lbs for short bursts on the street this year. It's a cheap gate though, so that may be my problem.

 

It looks like your suspension is a little too aggressive. The tires seem to start spinning as the rear begins to unload. I think thats the least amount of pressure you want to run in those tires too. What tq arm do you have? Thats a nice 60 ft and it looks like you have a good bit of improvement to make.

I had the same problem my first run. I had the control arms at their lowest point and you could actually hear the shocks clap as they topped out. I was running the 275 et streets. It wasn't until I put 10.5W slicks on that I realized I had a real problem in the suspension instead of the tires. I could launch in second gear and still spin the tires. Now that I have the suspension set up better, the car hooks pretty darn well with 225 snow tires on the street. I haven't tried it with the slicks yet due to a broken wheel stud.
I also have a jegster tq arm which is pretty aggressive. So aggressive that I might actually have to set up the control arms with a slight down angle, so that when the rear is loaded, the control arms are level. I need to take some very good up close video.

 

I've got a BMR trak pak torque arm in it. I think I should mount the sticky cam up in the trans tunnel to see how much the cross brace is flexing I'll move the LCAs up and see how it works out.

As for the taking video of your launches, I'd recommend getting one of Casio's high speed cameras. I use an EX-FH25 but you might also want to look into an EX-FC100. It's only $180 and can take decent quality high speed video at 210fps and low quality video up to 1000fps. I think it's a great tool.

 

Any updates, I am ordering my Turbo stuff with my taxes

 

no you dont... all you need is a buffer box from a firebird around 87ish year to make your speedo work with the ms

its a simple fix run a few wires and your done and it works just like normal without the factory ecm

 

https://www.thirdgen.org/forums/v6/5...-3-4-t3-7.html

wiring for the buffer box is on this page

 

Cars turning out nice! I'd love to see what my stock factory rear suspension looks like when i launch it. lol

 

Wander what ever happened with his car?

 

I hope he didnt sell car! He was suppose to sell it back to me

Hope he comes in here to let us know

 

Between work and rain just about every other weekend I never actually got it to the track last year. Just been driving it on the street and enjoying it.

If I don't go on deployment this year I plan to hit the track again. Biggest issue so far has been trying to get good traction off the line.. I can't leave under boost and I'm nearly to the 1/8th before the turbo's fully spooled. Despite that it's been 11.000 and consistently hanging with low-10 cars at the top end of the track. That's where I want it to be, I just need some bigger tires or a place that actually preps the track..