I'm....... BOOSTED!!!
 

It's awesome. It spools pretty quickly seeing how I have the wastegate ports wrong so that it never opens. :giggle: Gotta fix that. Hit overboost protection when I had it at 180 kPa and it's a 7 PSI gate. Put overboost to 200 kPa and hit it again, then I knew something was up. But wow, 200kPa on this turbo is uh, fun. Starts to spool around 4K, then it's like a rocket till it hits overboost around 4500.

Congrats, have fun with it.

vids please:D

Having fun Pat? :)

Great to hear!

awesome man! glad to see it up and running well. Hopefully here tomorrow i'll be starting my car too

sweet congrats

That has got to be the ultimate tease. wait, wait, wait, wait, wait, WOOOHEEEE, oh crap.


Now that you've got a whiff of what that tease can do I bet you are a little more motivated to get her done and running right.

THATS GREAT MAN!

You will never want a nonturbo again
Man you will love it when you can go all the way through the gears.

Have Fun!

nice !!! now lets see it in action a bit at least 500 rpms that turbo must be sick once it spools.

Congrats on your boostedness! :)

Zoom friggin' Zoom Zoom!

(congrats!)

- L

Yeah, this is awesome. Put some miles on it and got the wastegate fixed. It's a beast for 7 PSI. Haven't got on it hard in 1st, but second is Saweeet! And third is too. Need to do some tuning though. That will come tomorrow. It's running ~12.5 in boost right now. I want it in the 11's though.

Congrats man!

Here's the timing map I'm running. I made it on my own, but then I pulled a bunch of timing out. Pulled 4 degrees out of everything that's boosted, then a degree out of every cell above 5K in boost, then another degree out of every cell above 6K in boost, etc to 8K. Figured I'll get AFR's dialed rich, then get spark closer, then get AFR's back to 11.5 or so.
Attachment 209325

ALSO: I still think it's funny that I posted pics of how I hooked the wastegate up and NOBODY ever mentioned that was wrong.....

Yah man, Congrats!!! Stay safe, tires aren't sticky this time of year.

Congrats man. That is awesome.

It's very cool to see some of you guys getting close and getting there. It's definite motivation for those of us just starting down the long road to boost.

Can't wait to see vids once you get it all ironed out.

congrats!
Mines boosted but I still need exhaust before she goes on the road...

Good job man, glad you finally realized the supercharger setup was bogus and went this route.
Isn't it better to be boosted then trying to figure out how you're going to rebuild an old shitty SC?
Congrats.

wow, that spark map has a ton more advance than mine ont eh 8.6:1 motor...which was totally untuned and my spark map represents no benchmark nor standard.

its an addicting feeling, congrats

Yeah, I'm glad I did now. The lag kinda sucks, but... It's worth the wait. :)

Took a few friends for rides and they're all in disbelief. And it's only 7 PSI. I'm gonna turn it up some soon, but dunno how much is safe. IE- how much power I'm making. I guess I"m around 230-240whp at 7 PSI right now. It's a lot stronger than the 100 shot ever was.

That map by no means has a lot of advance. By no means whatsoever.

Yeah - I was going to comment on that - 4k for f'ing 12 psi??! Heh. Needs work. There's no reason not to see at least 10 psi by 3k. You have a semi decent exhaust, right?

Then again, in second gear, RPM changes faster than boost builds. Do a 5th gear pull and tell me what you get.

Also, 11:1 is probably a bit more conservative than you need to be.

I wouldn't worry about 12 psi, that's fine. A bit more advance might help keep you out of it. Anyway, the motors will hold together pretty well. Pauls all stock internals motor is running 17 psi or something, for 310 whp, so I'm sure you're good at an untuned 12, don't even worry about dropping it. Work on spool up!

And congrats, it's tons of fun. As soon as you get over this automatic idea of yours...

I wonder about that, I wonder a lot. I think people put "100 shot" on and think they get 100 hp out of it. I have my doubts. 240 whp on 7 psi is... probably a motor with a pretty good tune. I don't think you're there, not on 7 psi. I'm not saying it's not fast, just not as powerful as you think. 200 whp is a lot!

Yeah, the boost was on by ~4400 in second gear from a 3K roll. Haven't done a 4th or 5th gear pull yet.

And yeah, I may tune it leaner, I dunno. Gonna see how it does and go from there.

FWIW I'm running a GT3271. Sorta just like a 2560, but journal bearing and a divided gasses .78 turbine.

And yeah, I need to get the MBC on there. That alone should help with spool.

Automatic is probably gonna happen unless a 6 speed falls in my lap for free or forged 5 speed gears become super affordable.

Well, I have a lot of headwork. I also ported the intake manfiold recently. 3" exhaust, straight through, no cat, 20x12x3 core IC with measured 1* increase in temps at 7 PSI vs no boost ;). Granted it's not tuned. But it's better than what most run.

And the 100 shot was 100 extra at the wheels, so even at stock power, 110, that's 210. This is more umph than the nitrous ever was. But I'm guessing as I have no dyno proof.

do you have dyno sheets of the nitrous adding 100hp more? I think thats what abe was getting at. I dont think a 100shot adds exactly 100 but I may be horribly wrong

Uh, that's how nitrous is rated. A "100 shot" is 100 hp. Now some kits advertise the shot as flywheel hp or wheel hp. Mine was actually a 106 shot at the wheels, or 127 flywheel HP. Something like that. So yeah, it was 100 to the wheels at 950 PSI bottle pressure.

Don't think you can be horribly wrong there. And I assume there's a bit more tuning to be done to hit 100 hp with 100 hp in nitrous. Otherwise, why not just call 14 psi a "2x hp air shot"? Cause it doesn't work that way.

Of course, I could be horribly wrong. Dyno?

For the most part, a XX shot is an XX hp increase. For a small shot like my 100 shot, it was 90-100 hp extra depending on my RPM. In the grand scheme of things, a nitrous setup is MUCH MUCH simpler than a turbo setup. Many less things that happen and many less variables. There are many many efficiencies and losses that must be accounted for with a turbo setup to predict HP/boost. With nitrous, you meter the exact amount of nitrous/fuel going in. It's a known you can accurately calculate. You spray in 500 HP worth of nitrous, it goes in. But if you can't expel the exhaust well, then some of the air/fuel that normally goes into the engine will not, and your total HP will not be what you think.

Cliffs: you bitches don't know shit 'bout nawz.

Yea, I would call Corkey Bell about the psi you should push with that turbo!

Didn't Stephanie push 200hp at 6 psi with a similar Turbo.

Do you still have your NOS kit? You could shoot a small shot till you get to boost.


Keep in mind, stock miata's suck till 4000 rpms anyway. So it is just like driving stock, then the rocket kicks in.:)

In my opinion, if you are hitting full boost at 4000rpms, you are doing gooooood!

So says the 1.6l driver. :-) Everyone with a 1.6 says that. The NB 1.8's with VIC and all that really do have a pretty wide curve. I got full boost at ~3800 rpm with factory exhaust, cats, and a piggyback. Now I run more boost, and in high gear can see 12 psi at 2700 rpm. So... 4400 is a bit high. Won't mean it can't be fast, but it'll feel a hell of a lot better to drive.

Certainly the times I've let supercharger guys drive my car, they all ask me if I want to buy a used supercharger. :-)



As to the NOS, yeah, I was thinking that you still have to fuel it. I guess what I was thinking is if you underfuel, you won't be able to burn it, and if you over fuel, you'll kill the efficiency of the fuel, so you go from 110 gasoline hp to 100 nitros plus 50 gasoline.

But like you said, I don't know anything about it.

Good job on getting it done and on the road. Seeing these stories here recently is breaking my heart, but keeping me motivated. Cant wait to actually have a little power on reserve, and to be able to pass people without having to go wot at 70mph.

He has a GT3271.

I have a 2560 and I am full boost 13-14psi around 3200-3500, even in first gear take offs. After I am moving, it is almost instant whenever I hit it.

Pat, How does the exhaust Sound?

Installing an MBC. :bigtu::bigtu::bigtu:

Exhaust is quieter with the turbo. And quieter than I thought it would be I'll add. Truely didn't think it would help this much. Haven't done much highway cruising, but so far, it's.... ok.

Interesting day....
 

So, I installed a MBC. Set it to what I thought would be maybe 1 pound more than wastegate and hit overboost at 180 kPa. (7 PSI waste gate) Then put overboost to 190 and still hit it. Put overboost to 200 kPa and I was running 190 kPa... at 14:1 AFR's! :eek5::eek5::eek5: But no detonation. Finally got the touchy fucker adjusted. I'm running 174 kPa now, or 10.7 PSI boost with overboost set to 190 kPa. And I tuned it so now I"m running 11.5:1 in boost. Runs very well I must say. Seemless and strong. But laggy as hell!

Almost burned my car down too: So yeah, I just left the grocery store on my way home. About 2 miles from home, I think I smell a hint of gasoline. As I'm driving, I keep thinking I smell gas. Just barely. Get home, leave it running, pop the hood, and slowly raise it and look. Gas is POURING from the #1 injector onto the alternator! :eek5::eek5: Scared shitless as I've seen gas fires before. I lower the hood, kill the engine, and grab a water hose. (pretty much useless, and we had no fire extinguishers whatsoever), and wait. And wait. I slowly raise the hood and I can see gasoline boiling off the intake manifold and alternator. I shut the hood and let it cool, watching with a water hose to try to fight it should it catch on fire. Thank god it didn't catch fire.

So for the umptenth time I just redid the fuel injector o-rings. Before, I was always having problems getting them to seal into the cylinder head, but never an actual fuel leak. Heh. It better not leak again.

Crank it up and check and no fuel leaks. So I take it around the block, and back home and check again. No leaks. Let it run and keep watching, all looks well. Whew.

So I go buy me a fire extinguisher. Got one from Wal-Mart for like 14 bucks. It's not big, but it's better than having nothing. Probably the best 14 bucks I ever spent on the car.

CLIFFS: Ebay special MBC's are touchy some bitches. RC fuel injectors don't like me. Everybody on the forum should carry a fire extinguisher for no more than they cost.

Oh yeah, and first two kill stories.

First, I'm sitting at a red light when a V6 mustang with cool blue headlights pulls up behind me. I leave the light, I'm going about 25 in second and he changes lanes while flooring it to pass me. I roll on it in second. Bout the time he's right beside me this laggy thing spools and I proceed to put 5 car lengths between us rather quickly. He got back behind me.

Then on the way home from Wal-mart a newer stock red civic pulls up beside me at the red light. Turns green, I take off like normal. Few seconds later he guns it. I put it in second and put it to the floor. Momentarily I flew by him.

I love boost. Almost got to run a modded camaro but I was in the turn lane...

any chance of video's pat? I am dying to see your car in action, especially some speedo/tach vids to see how this beast dropkicks you upon spoolup... oh and some pics of the finished up engine bay would be nice...

people with large turbo's are my hero's, its crazy and unpractical, but something about a gt3xx turbo that makes me drool.

nice... its good to be boosted...... hey can u log full throttle run and post up the log file... i would like to see intake temps with ur set up and i just would like to see some other logs besides mine......

what size injetors u running?

Yeah, I'll do some video's in a few days. Probably over the weekend. Still getting used to it and getting it tuned some. Actually, today was the first time I tuned anything. :eek5: And I'll get some pics and writeups on different things in a few days once I get back to MSU and get settled in.


Running RC 550's.

Here's a log. Don't have any good long pulls to really judge its effectiveness. All of the boosted pulls on this log are 2nd or 3rd gear. I suppose at higher speeds and more load they may be higher, but then again, I'd have more airflow through the IC too.... So far I get 5-8 *F higher than ambient temps when cruising with a 2-4* F increase in temps during boost. Acceptable for me.

Shit, can't get it to attach either, I think it's too big. PM me your email and I'll send it to you that way.

what are your outside temp where you are? and yea post up some vids intrested to see how it pulls......

emailed you the logs. If you can figure out how to post them here, go for it. \

We had a high today around 70*F. Tomorrow is our last day of warm for a while I'm afraid. :(

Why is it everyone who complains they think turbos will be laggy goes out and buys a huge one? :-)

At least run yourself an extra 5 psi of boost over what you are, you'll be fine. I'm running ~14 right now and the only problem is keeping the driveline together. :-)

MBC's are awesome, no? Don't feel bad about them being touchy, it's how they are. But they are set-and-forget (though keep an eye on how weather effects boost levels), so once you get it, it's not a problem.

My car's sputtered to a stop for gas leaks or at least gone very lean so many times I can't even count it. It's more scary having a low tire on just one side of your LSD. :-P Well, let's say you get jaded to it. The only time I've had any issues was an oil leak which at least got me smoke. But like you, I ran out and bought an extinguisher, and a second for the garage. It's probably a bit bigger than what you got (but half the size of a typical "household" one).... I think everyone does this, buy one AFTER the first close call, and everyone should get a fire extinguisher if they don't already have one!

Now you're scaring me and have got me looking at Halon extinguishers to mount in my street car.

Be afraid, be very afraid!

I remember the first time, was at an autocross, and there was a puddle coming out from under the car when I got my timeslip. The guy sounded very very worried.

Most (all the major ones) leaks were from the FM secondary fuel rail. Installing the TwinCooler they advised me to pull the manifold support brace, and as best I can gather from the folks I've talked to, people who remove this AND have the secondary rail keep losing the rail. I've been through so many iterations with that thing.... Thank god for MS and huge injectors. :-)

Congrats Pat. At least I have started my install now. Hope to have it together in a couple of weeks.

thanks for the email... intresting looking at your logs...
man u got to tune part throttle and under boost a lil u prob drinking gas like crazy.. and the intake temps look good... prob cuz the turbo is big... and man u got some serious lag going on...

also what wide band are using cuz mabye im seeing the wrong afr. but i tryied all of them and the lc1 looked about right.

when u get some full throttle to redline send to my email agian..... intrested to see...

anyways gongrats on the boost agian.......

Yeah, I run my car on the rich side. It likes its' fuel. Runs smoother. Still gets 20-22 city before turboing it.

Yeah, the lag kinda sucks. Hard to say. The power is nice though. I think I'll improve spool up a bit with tuning. I hope. And the wideband reading is bouncy from noise. Gotta fix that.

EDIT: And I'm running an LC-1

Yeah, I beat you! :giggle: Get to work Stein, boost is awesome.

You get used to the big turbo and drive it accordingly. It's not laggy above 4k is it? I know that mine wasn't and my turbo was even bigger.

Retard the timing a bit around atmospheric to try and get a little better spool.

Get an automatic, it will make everything better.

Well I don't get full boost till after 4500 right now.... So yeah, kinda laggy. But these are second gear pulls, not 4th and 5th. It does make some boost down low though. Even at 2K I get a couple pounds. It just takes forever to get up to full boost of 10.7 right now.

And yeah, I need an auto bad.

that is so true....not to mention he is not even tuned yet. with good tuning spool will only get better

On a side note, I have been posting alot more then usual lately. Wierd.

Less words and more pictures of your setup.

Nothing scarier than boiling fuel on a hot piece of metal under your hood. I had a bad fuel leak on my old TII RX7. Popped the hood to find a puddle on the intake manifold. Just under it... the turbo down pipe... :eek5:

So...

Spool still sucks. Here's the timing map I was running before:
Attachment 209180

And now:
Attachment 209181

The first one is stupid retarded. The second is what I'd call "conservative", as it still has less total advance that what most here run by 1-4 degrees on average.

I can't say spool improved any yet as I still don't get full boost in second till 4500, but it does pull harder on the new timing map. Like when boost came on in second I was like HOLY SHIT!:eek5: :eek5::eek5: But yeah, it definitely liked the timing. I didn't get to rev it out as traffic is terrible. I'll try to get on the highway tonight and do a few boosted pulls and see how it pulls up top now. I don't think I'm gonna try to add any more timing in until I get a knocksensor and KnockSenseMS hooked up and going.

Oh! No knocksense, that explains the map a lot more. :-)

I'll be dead honest, I can't hear knock for shit. I can pull broken pistons and bent rod all day, though. :-P But I see the light, feel the timing pull, and have no idea what happened. Get it and bump the timing for days.

http://abefm.smugmug.com/photos/452950407_JECEU-O.png

On CA gas, SOMETIMES I'll get knock but not much. I think it depends where I shop. Also, I'm pretty sure there's more timing to be found if I richen things up a bit in the 130 kpa+ range.

OMG 4th gear pull spool is awesome!!!!!!!!!

I just put this in the spool up thread.


Engine: 99' 1.8L
Turbo: Garrett GT 3271 52 trim comp, .78 hotside
Manifold: FM T2 manifold converted to T3 w/ 38mm WG added
Downpipe Size/Style: home made 3" w/ WG tied back to downpipe
Exhaust Size: 3 glasspacks and a big Magnaflow all 3"
Exhaust Components: Louvered glasspacks & Magnaflow Muffler
Intercooler Core Size: 20"x12"x3"
Intake Manifold: Stock but vics chamber removed
Headwork: Heavily undercut and backcut stock valves, smoothed SS radius, blended bowls, heavily unshrouded the valves,
Engine Management: Megasquirt II W/ EDIS Trigger wheel setup.
Other Spoolin' Helpers/Hurters: Needs a better tune, using MBC
Trans & Rear End Ratio: 5-speed, 4.3 Open Diff
Rear tire size: 225-50-15's

FOURTH GEAR PULL:

RPM Boost(psi)
1518 1 PSI
1778 2 PSI
2443 3 PSI
2604 4 PSI
2753 5 PSI
2876 6 PSI
3025 7 PSI
3061 8 PSI
3251 9 PSI
3344 9.7 PSI

Not bad if you ask me. Still need to tune it some though.

Pat, was wondering if you had any issues with the mani. Everything work out ok? I spose I would have heard from you if it hadn't.

Yeah, it's working great. Of course when I bought it it was a T2 FM manifold with damaged/stripped threads. But I knew that. I ended up drilling and retaping the threads, locktiting bolts in them, cutting and grinding them flat, and then redrilling and tapping 3/8-16 holes in a T3 bolt pattern. And then cut a hole in the bottom and added an external wastegate port. I have quite a few hours in that manifold to say the least... But so far, it works perfect.