I think I found my entire problem to why my engine isn't running!!!!!!!!!! I'm still going to make sure this is the final problem but I'm nearly 100% sure once this is fixed it will run.

Basically, the front manifold wasn't allowing exhaust to go through the exhaust system so only have of the engine's exhaust was being expelled. Once I fix this i'm almost sure it will run. I'll let everyone know the results soon.

 

uhhhhh.....
you leave a banana stuck in it while you were working?

 

Yeah...I'd like to know how that happens...sounds like something that would happen to me!

 

actually, what happened was i had a guy weld on a steel plate to cover the flange the turbo originally bolted to. i though everything was open so it would allow exhaust from cylinders 2, 4, and 6 to flow to the crossover pipe. what nissan actually did was cast the manifold so that the exhaust from the front and rear banks don't meet until the turbo, which would keep turbulence down. so, for now all i have to do is cut off the steel plate covering the flange and make a sort of box so the exhaust can flow through. this will rob power but it will have to do until i can make a manifold for it.

 

do it once. do it right. you'll hate yourself in the morning if you don't.

 

i don't have the proper stuff to do it right now. i need to order a bunch of mandrel bends and other junk. i still need to get some mig wire and some gas for my welder.

i have to fix it at my welding class at the moment. it starts in about 50 minutes.

 

okay, have fun. don't come crying to us when you break something else because you rigged it.

 

i don't think i'll be able to break anything. i'm just redirecting the exhaust.

 

suuuuuuuuuuuuure.

 

well, i guess there is always the chance of cracking the manifold while welding since its cast iron.

 

Did someone say mandrel bends?
I got those

 

good god you seem to have it all. how bout heads or a motor (ve) ?

 

well... my luck wasn't meant to last. turns out there is hardly any room to made my "box" to let the exhaust flow through. so, i guess i'll have to make that manifold quicker than i thought.

 

you do? well why the heck didnt you say anything before? Jeeze, I might have someone will buy them from you.




not telling me you have mandrels....

 

where are the pipes located on your page?

 

yea lets see the prices and for what size pipe

 

i may have another simple fix. just buy a right/rear manifold off of a 300ZX or 2nd gen Maxima and put it on the front. i would then need to do something about the crossover pipe but it would be a lot easier than making a manifold.

 

Not yet. But I can always look if demand warrants it

 

They're not, yet. It takes alot of time to put this page together and it keeps growing and growing and growing
I think I'm gonna have to split it up soon
BTW I have a thread going http://forums.maxima.org/showthread.php?t=261007 that I am sking for what People want on the page. So just tell me what you want and I'll toss it up there.

 

what size pipe you want?

 

Before I forget, I'd like to thank and give recognition to LittlePiggie for giving me the idea to check the manifold. I more than likely wouldn't have checked it if he didn't bring it up. Thanks man!

 

did you not think to LOOK before you cover the plate?

 

Just curious but how do you have the manifolds setup with the turbo? Got an pictures?

 

pics here

http://www.cardomain.com/id/mtcookson

 

actually, i did before but it never registered in my brain that they were seperate from each other. oh well, its a learning experience.

 

tell me about learning experiences...wel i know how to do timing now after i broke it !!!

 

here's my day in a nutshell

well... i didn't get to buy that rear manifold like i had planned. instead, my dad wanted to try fixing the one i had. we took it to my uncles shop and cut off the entire flange where the turbo bolts to. after that my dad took the cutting torch to it and cut off a bunch of metal so the cylinders could flow pretty freely to the crossover pipe. nissan makes some amazing cast iron. it welds and cuts very well. after that we took it to a guy to have a plate welded on. he did that and i headed home to put it all back together.

after about an hour i finally got everything back together and was ready to start it. i turned the key and it cranked a bit and vrroooom started right up. it sounded sooooo good. nice and smooth and idled very well. i revved it a bit and it revved so well. i ran it to my house to get some anti-freeze and filled it up.

i drove it around a bit with my dad and picked up my brother. i kept the rpm's down so it could warm up and since it was really the first time its actually got to run a lot. i went to the highway and got into second gear and hit the throttle and had some nice boost going into the engine. something didn't feel right and i slowed down. the engine died so i put it in 2nd and released the clutch to start it back up. the thing wouldn't rev very well at all and was running insanely rich.

i finally get it back home so my dad and i could take a look at it. i pop the hood and he looks under there and my dad says well this pipe came off. i was like suhweet!! intake pipe came off so i wasn't getting a good airflow signal.

i put it back on and tightened everything down real well. took it back out and got on the highway. started in first and nailed it.... it felt sooooo damn good. put it into second and it just kept on going. so, i can finally say "I HAVE BOOST!!!!"

it still needs to be tuned quite a bit because it doesn't quite feel like its running as good as it should. it has a tiny miss every once in a while but... i can't complain. i'll check the timing and take it to a dyno, if i can, to see what kind of a/f readings i have.

 

Congrats! bout frikken time you got it up and running!!

I highly suggest putting a bead on the ends of the intake tubing so the pressure doesn't blow them off.

and be sure not to blow the engine up playing with it before you get it to the dyno!

 

congrats on getting it running. Make sure to post the dyno numbers once you get it tuned

 

yeah, i definitely need to bead the end of the pipes. know of a good way to do this?

right now its running very rich so at the least i won't have any detonation. i'll start looking for some dyno places tomorrow so i might have some numbers by the weekend. i've driven it a bit more tonight and it seems like its running really good. i haven't noticed any problems yet at all and hopefully i wont get any but that's pushing my luck, lol.

 

niiiice man!! I'm glad to hear it's up!!

 

since i don't have a digital video camera i'll record some sound clips to give a taste until i can get a camera. (just incase you guys think i'm all talk )

 

to bead the pipes... are they steel?
they make beading machines for this, but they're a couple hundred bucks.

you can also "modify" some vice grips by grinding down the grips on them to mash a bead into it..

another way is to weld a small bead of material all the way around the end. it's more difficult to get it straight and even, but it works too.

 

hmm... i might try welding around it. that should work for now.

the pipes are aluminized steel i believe. its whatever exhaust shops use.

 

great that is running!

if you are using regular clamps, try some T-bolt clamps instead. they seem to hold much better on bead-less pipes

 

yeah, i just have some regular ss clamps (at least that's what i call them). i probably have some t-bolt clamps laying around somewhere.

 

Nice to hear you got it running. So its running with the bigger injectors and modified ecu? Cant wait to see what the dyno says. What kind of boost are you running?

 

yeah, i'm running the larger injectors with the modified ecu. its running extremely rich, though, and i even have the fuel pressure quite low... like 28 or so at idle. either it isn't quite tuned right or the injectors are actually bigger than i thought.

i'm only running around 7 psi... i think. i've not really had a chance to tell what its hitting since it accellerates too dang fast. the spring on the wastegate is for 7 psi so it should be at that.

edit: forgot to add a few things i did tonight.

fixed my temp gauge i believe. somehow it wasn't adjusted correctly. i'm pretty sure the needle is supposed to point straight down when adjusting it, but could someone comfirm this for me? i've not messed with my needles in so long that i can't remember where it is supposed to sit when the stopper pin is out.

i also got rid of my stupid clock that sits there and flickers the whole time. i put my boost gauge there so now i have a place for a 2 1/16 guage in the future to go along with the 3 that i'll be able to put in the pod.

i'll try getting some pictures up sometime and get that recording i said i would get.

 

hell yeah!

 

congrats man!

i'm curious on how much torque you're putting down