m1t tech questions

[scaredycat]

if you have lets say 10 gallons of 91 pump fuel and add 2 gallons of 100...could you just use 94 octane instead ---average it out..my calculations are not correct i know...just using these numbers as an example

should a stock m1000 with no fuel controller and not running secondary injectors or extra fuel pump or regulator...... boost up to around 5 lbs and get richer as the rpms increase. this messes me up because im adding more air with the turbo and using stock injectors so i thought it should be leaning it out...or does my factory ecu compensate quite a bit...stock it has 43 lbs of fuel pressure...

 

[Boyko]

Where are you getting you boost referance from,

The ecu will not add fuel at boost

Do you have it WFO

the 1000 need a good splash of fuel @ 5psi

My stock injectors max out at 6 psi @ 2400 feet

 

[backcountryislife]

if you put 10 gal of 91 in the tank, then add 2 gal of 100ll... you'll have approx .8 gal on the ground

Try this for a calculator, to figure your mix.

http://www.bazellracefuels.com/Calcs/OC1.htm


as for the rest, I guess this "should a stock m1000 with no fuel controller" confuses me. You've got NO box on, but your afr or egt is reading lower as you increase boost? Is this with a load, or on a stand? Either way, seems hard to believe.

 

[scaredycat]

m1t

lmao thanks bc....smartazz......i know it was a bad example but do i need the 100 for anything more than just bringing up my overall octane number or does the 100 have lead in it ....etc thx for the info

as for the sled it was only runnin on a stand...wot for a few seconds
internal wg is 7 lbs
found out my bov is probably around 11 lbs with the tial unpainted spring--
i know i need a way softer spring

boost referance is hooked into my line going into my intake
and when i open it up the afr is 14 at idle and then the afr goes down to
13 before clutch engagement and goes down to 10.7 ish at wot
thought it would go way leaner but its not --its messin with my theory of
more air and less fuel equals leaner.....

 

[Wheel House Motorsports]

you dont have a box on it???? wtf??

you wont create any load on the stand and most likely wont create any boost, so your fueling might be fine as it is. it gets richer because it has a massive restriction in the exhaust.

just some thoughts.

 

[backcountryislife]

you wont create any load on the stand and most likely wont create any boost, so your fueling might be fine as it is. it gets richer because it has a massive restriction in the exhaust.

just some thoughts.

Ok, that's what I was trying to figure out, on a stand it makes sense, but taking it out without a box seems like top end assassination to me.


btw... expecting anything OTHER than a smartazz answer at first... way off.... just sayin.

Btw, I wouldn't worry about the lead in a smaller mixture, it's running it straight that makes me wonder about sensor longevity.

 

[Going West]

We have run straight 100LL for 2 years and about 3500 miles on our t1000's, and we still have the original 02 sensors.

 

[backcountryislife]

We have run straight 100LL for 2 years and about 3500 miles on out t1000's, and we still have the original 02 sensors.

Well, that makes me feel good, cause there is NO WAY I'll get 3500 miles out of a sled & have much left to be worth replacing things on!

 

[knzee]

straight race gas with 1000ish miles and same O2 sensor.

 

[scaredycat]

m1t

ok ok i know i need a fuel controller...im hoping its not restrictive exhaust as i used 2.25 stainless tubing, doubled it and joined it at the turbo flange so its almost a two into one set up..ill get a few picks tomorrow..i thought it should flow pretty nice..it is hitting 5 lbs pretty freaking quick...you guys will love my turbo oil system..its my buddy with a huge syringe..lol dont think he can run fast enough to keep the turbo oiled if i tried it off the stand though...only tried it twice for a minute so i dont mess anything up

 

[BigAir]

The restriction he is talking about in the exhaust is the turbine in the turbo itself, not your piping after the turbo.

 

[scaredycat]

m1t

even with a t28 turbine and a AR 82 opening or that the wg isnt opening

 

[WyoBoy1000]

What the hell are you doing, a little more info on what you are doing and trying to do would be nice, the only way it would not go lean adding boost would be cause by a fuel pressure regulator. Once you put a load on it with 5lbs of boost it will take seconds to go boom.

 

[scaredycat]

m1t

wyo

i ran my sled for a brief minute to see if i was going to get boost, testing hook ups etc...anyway i got boost quickly...5 lbs ...the afr went richer as i gave it more throttle 14 at idle 13 bf engagment and 12 at 5 plus and 10.7 ish at wot....no fuel pressure reg and no fuel controller yet...ran it on a stand and cant figure out why it was going richer not leaner when it hit boost..thats it..

havent tried it again since..

 

[Boyko]

Your running a 3071 garrett with a .82 turbine housing?

Sorry I know you posted it before but I can not remember.

What is the number on the tag of the turbo?

It was pretty loud eh.

 

[scaredycat]

m1t

yes sir boyko 3071 with a .82 ar on turbine side

i knew it was going to be louder but the turbo acts as a bit if a muffler..sounds nutz when its wot...just savin a bit more money for the rest of the stuff i need to finish it..

 

[Boyko]

yes sir boyko 3071 with a .82 ar on turbine side

i knew it was going to be louder but the turbo acts as a bit if a muffler..sounds nutz when its wot...just savin a bit more money for the rest of the stuff i need to finish it..

Good show…..
I'm not realy worthy of being called sir........

This is what I think is happening with you A/F. You are not dropping your fuel pressure and the bottom end is loading up with fuel, it is just pudling in there. The stock fuel curve is going to be rich before boost because you got your tail pipe stuffed up with that turbo. Your going to see good numbers on your A/F gauge but I believe it is loading up with fuel. So ya wind it up and that blows out the puddle and it looks like your fat on the top end, it’s not going to be fat for long. I have see this happen before, just cruising at a slow pace you pin it and you got a sputter, it seems is worse if you wack the throttle it and flip the sled on it’s side to chop a donnut. You get it rippin.

 

[scaredycat]

m1t

makes total sense.

.im pretty happy with the install so far..get the other parts and maybe ill spend some more and have the pipe,exhaust and y pipe ceramic coated...you think the turbo could use a small oil cooler or not worth the time....

 

[Boyko]

I think your oil pump is going to fry before your turbo will with hot a oil problem. If you oil tanks is made of aluminum and is about 1200cc in size, it will suffice keeping the oil from getting hot

Always things to improve on, I got mine wrapped up, it is probably a lot like you set up, I am running a 38mm TiAl wastegate as well, same turbo, pretty happy with this setup, has not had much for issues at all it runs really clean and crisp. I ran out of snow here, did not get much testing in so off to the mountains next weekend

Cheers

 

[scaredycat]

m1t

boyko..sorry to hear that your going riding this weekend,,,im sure you pretty depressed about it..lol

i think i oversized my oil tank a bit..it will only hold 3 liters..lol guess i can oil all my friends turbos too...or sell some in the mountains to guys that run low..

i keep thinkin that an oil cooler after the turbo might help the pump out a bit...maybe its not needed..i dont want it to look like a circus under the hood but i want it to be efficient so ill keep tossin it up for awhile....