maxmaxima91

Sorry, well i have Ran 19 psi at the track, just ran into clutch slipping problems, Once this Iron/ceramic clutch I've got gets hot its over. I may go to the track in the next few weeks to see if I can get any more out of this clutch before it slips. in the next few months I'm redoing the clutch setup all together. Ive been working with South bend clutch and were going to do a 350z style clutch next time. This winter I've got plans to Totally rebuild my turbo setup. This one is 3 years old and getting tired, plus my fabrication skills have made leaps and bounds lately. Ill make a build thread once i get started with that. should be in the next month or so.

Matt93SE

iTrader: (44)

Just an FYI... look at Z32 clutches. they should bolt right up from what I've seen. no promises tho.

maxmaxima91

z32 clutches have the same bolt pattern but the alignment pins are different. could be made to work, but south bend clutch owes me a clutch that can handle the power so they decided to set me up with 350z style clutch.

4signs

iTrader: (2)

some guys get all the luck (I'm on my 4th tranny)! Great job man! I always loved you setup. Maybe one day we can have a friendly race at the track. Spark up the old vg vs ve, black car vs white car

Matt93SE

iTrader: (44)

Hell, I'm on my 4th tranny and I'm not even turbo!

ColombianMax

iTrader: (7)

Hell I'm on my second and I'm not even running correctly and have a VG

maxmaxima91

i guess im lucky.. 45k miles boosted always having at LEAST 275 whp usually closer to 350 whp. with not a single trans problem.

ColombianMax

iTrader: (7)

hey jeremy, was your max a 5speed originally or did you swap in the LSD 5speed?

maxmaxima91

5 spd originally i just installed the vlsd this past winter.

super32

iTrader: (5)

I'm on my 2nd tranny, and I drive like a little biotXX b/c I'm sooo afriad to spend any more money on just repairs... The amount I've spend, i could prolly end up looking like 1/8th of maxmaxima91's beast.

maxmaxima91

Video Coming Soon

Nealoc187

iTrader: (23)

video coming now, congrats on your dyno. hope you didn't jinx your transmission, you know how superstitious I am when it comes to saying how well things have held up for me lol.


JabaayFab ftw

maxmaxima91

376 hp video
http://img532.imageshack.us/my.php?i...mydyno2ug9.flv

400 hp video
http://img532.imageshack.us/my.php?i...mydyno1sd5.flv

hadman

iTrader: (21)

3rd gen Dyno runs like that just make me giddy. Nice work!

Aaron92SE

iTrader: (128)

Awesome! What is the fastest 1/4 mile time for a 3rd gen? You just might be a good candidate, until I come in.

Have you ever thought about upgrading to an automatic tranny?

But for real, great job man!

maxmaxima91

my fastest right now is a 12.8 at 114mph with a 2.01 60 ft. but that was only at lower boost. once i get my clutch situation figured out im hopping for a considerably lower time. Ill always have a manual in this car. There Much more fun on the street and.... i dont only go strait line in this car. I love to hit up the road course and an autox from time to time. Autos and road course/ auto x's suck. but yea ill admit. an auto with high power will nearly always be faster than a manual. basically with a manual it comes down to the launching system and how good of a driver you are. Auto on the other hand........ footbrake..... and floor it...

Matt93SE

iTrader: (44)

Upgrade?

internetautomar

iTrader: (30)

on a drag car it is.

Aaron92SE

iTrader: (128)

I just wanted to stir up something. I was just kidding. I know you can't race on a road course with an auto. That would really suck! That's probably the only thing keeping me from doing autoX or road course racing. Plus, I know I'd be addicted if I tried it and I'd blow up my automatic tranny pretty fast doing it.

At the drag strip, I just hang on to the steering wheel really really tight and floor it. The slicks will either hook or not. If they don't, you have to try to steer the car back to the center of the lane.

It's very possible you can see 1.8s or at least 1.9s with a good launch on slicks. That would make for some interesting times. I would love to line it up with you one day.

But let's not start this debate again about autos and manuals. I found a way to put all the worms back in the can.

maxmaxima91

o its all good. i know you were just messin. But i totally agree, an auto is better in the strait line, at least once the power starts getting up there. Man to be able to Floor it at the line with one foot on the brake. you can build a lot of boost that way. I on the other hand.. have to blip the throttle at 6000 rpms.. at least untill i can work up some type of line lock. One is in the works, an rpm adjustable spark cut. That should be fun.

Aaron92SE

iTrader: (128)

I think it's Dandymax that uses a 2step rev limiter for his launch. Look into his setup if you haven't already. I remember seeing a pretty sweet video of his launch one day. You stomp the gas to the floor, it revs at your set rpm, then you pop the clutch. Consistant launches every single time depending on track conditions and the slicks you are using.

maxmaxima91

yea, that is basically what im working on. steps work real good for boosted applications since they can even build boost sitting at the line.

Bryan H

lean it out.

you're running way to rich.

"it's safe" uh, you're running a fine line of hosing down the cylinder walls with raw fuel and washing away the cute little oil barrier.

Alex_V

He knows what hes doing, and has something like 50K boosted miles between two engines. 11:1 isn't too rich, its around 10:1 when you get too rich.

Maxmaxima91- is that broken/clacking studs I hear in the 400WHP video? The 376 vid sounds GOOD.

And do you think you can do 500WHP with out porting and on this turbo?

Now lets see you beat Niel at the track

~Alex

DanNY

iTrader: (14)

how much flow on the injectors?

nice job...you got my attention.

Matt93SE

iTrader: (44)

Bryan also knows what he's doing. I wouldn't argue with him.

maxmaxima91

This is a topic of great debate.. Ive read Lots from the best tuners out there and come to to the conclusion that... you don't actually start "washing the cylinder walls" until your into the 9s. I'm Really starting to push this engine, 9:1 comp, 93 octain, 18-19 psi.... i cannot lean for power at this point. Most of my turbo charging knowledge has been learned in the Honda community. All my buddy's are Honda guys so thats what I've got the most experience in. I know a lot of Nissan guys Hate Honda's but.. if you look at the Honda guys that really know what there doing. They push stock N/A style engines to there absolute extremes with boost. Some of the Best engine tuners are in the Honda world, I'm not saying they all are, but there are many. When you really start to push engines you cannot be trading off fuel for power. you will begin to knock and melt crap. I'm on my second engine, The first one had 2 pistons with cracked ring lands. was i lean.. No, but i did have unbalanced injectors... injectors that ran fine all though out the rest of the throttle range meaning that they were not that bad, however just having a few cylinders slightly leaner cause me to damage things at less boost than im at now. What im trying to say here is if my overall AFRs were in the mid 10s, with unbalanced injectors, some of the cylinders were leaner and some were richer in order for it to average out to mid 10s. the cylinders with the best walls when i pulled the engine were the ones that were much richer. not the leaner ones. That was on venom injectors.... since then I've installed an entirely new fuel system. deatsch werks 350z style 640cc injectors, custom rails, and aeromotive fpr. On that new fuel system and engine I've ran more boost for longer periods of time than i ever did on the old setup, including road racing at 13 psi with no problems... So you can tell me I'm to rich and I'm going to cause damage to my cylinder walls.. but... until anything causes me to believe so.. i am going to disagree with you.

Jeremy

o and.. Alex, The noise in the 400hp video isn't the car. its something with the dyno. It showed up on the video but i don't remember hearing it while i was doing it. ... and.. according to the z31guys.. i have alot left in this thing as is.

Bryan H

lol
ok.

i'll go play all day long with my 9.5 c/r runnin 19 psi, and 12.3 afr on 91 octane.

i don't know anything. never have.

there is a flaw in your logic. granted all engines {for the most part} work under the same principle. there is a fine line between each one that changes the rules ever so slightly.

put an egt gauge in the car. figure out which chamber runs the hottest, and tune by that chamber. you may get just as much power out of the engine if you drop the boost down a couple lbs, and play with the afr's just a tad.

for the sake of runnin pump gas. put a water injection kit on there. this will drop the chamber temps about 250 degree's. allow you to run a leaner afr, and keep the boost at a safe region.

wanna see if you are hosing the walls down? pull the dipstick after a hard run. if it smells like fuel. you have problems.

maxmaxima91

So what do you run. Ive never seen your setup before... Id like to see it.

yes, I probably could make the same power by leaning a little and putting in slightly less boost.. But, Its been proven at least in the Honda community and it was taught in the tuning class efi101 that tuning afrs for more power is rarely worth it. your closer to the edge of knock which does not allow you to put near as much boost in... From all of my experience with pushing stock engines, there is more power to be made by running it in the higher 10s afr wise due to the fact that you can throw considerably more boost at it. People have been tuning cars to hight 10 low 11s afrs for a long time with no talk of washing down the cylinder walls. I did six 15 min sessions at Gingerman raceway in MI, at 13 psi and due to time constraints my tune was not "perfect", I had just tuned it to mid 10 if not a tad richer.. and ran it. So of those 15 mins at least 10 were spent running in your "wash down afr" range so.. in that case i would have had lots of gas in my oil if you say that one pull can make it noticeable.. however there was none, i spent nearly 100 miles on the track without problems. To really think that any liquid gas is going to make it down into the crankcase is crazy.. You can keep talking like everything you say is facts. but until you've got actually instances of 10.5 afr washing down cylinder walls... I'm just going to disagree. You can do what works for you.. and ill keep doing what has worked for 50000 plus miles in my car and 100000+ miles in customers cars.

Bryan H

first off. your car is NOT a honda. you do NOT have the tolenrence levels that are required to be even close to a honda, nor do you flow the cfm from both your heads that a honda does.

speaking of tolerances. lets talk piston ring clearance. i for a FACT, that 11.1 afr in my car, which has 27k miles on it, and a lot tighter tolerance levels then your vg ever dreams of, that if you pull the dip stick on one that is runnin 11.1 you WILL smell fuel. go do a hard run in your car. pull the dip stick. im runnin a afr you would cry about, im running a timing level your dreams are made of, and yet. mine is still together. you're looking at me like i don't have a freakin clue what im talking about. try again. im not telling you this because im some sort of god. im telling you this because it WILL cost you another motor, and quite possibly a turbo. do yourself and your engine a favor. put an egt in the car. don't come at me with "i have an afr gauge, im fine". wrong. you can have perfect 11.8 afr and still open a piston like a pop can. why? chamber temperatures.

i don't know everything, but i know enough to know what im doing and where im doing it. im far from new in this game, let alone a maxima world.

wanna know what im runnin? ok, no biggie


here is also an old datalog from said vehicle. i say old because things have changed. since then.



im new to turbo's?
nope.

i helped in the tuning of this car.

Boosted Maxima

I'd have to agree with MaxMaxima91. All I do here at my shop is Boosted cars. They can vary from a 06WRX STI to my Hybrid Camaro with a Buick GN engine in it.

In my Camaro I run 11.3AFR with pump gas. I would not recommend going into the 12's(AFR) with a boosted engine at WOT. My own personal openion from experience and time spent tuning.
In my VG Max that has 237,000mi on the stock engine and 60,000mi on the turbo setup I run low 11afr's at WOT. If I lean it to 11.7's it looses power.
Just my experience.
~Scott

Bryan H

you found the limit. you have the experience. you didn't go to a "class" that was geared towards honda's to "think" that something is right.

Bryan H

i honestly believe id have a better chance of trying to teach hellen kellar how to use a speak and spell.....

Matt93SE

iTrader: (44)

Give up, Bryan. these guys know everything and can't learn from anyone- especially an OG that moved on to cars with more potential than a Maxima..

FYI, guys.. In the ~8 years I've known him, Bryan has owned/raced/built more cars than most of you kids have even seen under the hood.. I know he's owned 8 that I can count right off hand from memory, and all of them were 12sec or faster cars. he didn't just go to school and read a book published by EFI101. he's spent years working in dyno shops tuning the cars that the EFI101 originators learned from.

maxmaxima91

If you think I'm new to this game also i'm not, I don't post much but i have been doing this for a living for the last 5 years. The reason i brought up efi101 is because it is ran by some of the best boost tuners around, and on a load bearing dyno they displayed how little power is made from leaning afrs. On to the honda part, we've built both honda and nissan engines in our shop, the tolerances on VGs are considerably tighter than those of the hondas we build. nearly every tolerance in the book is tighter. What i am speaking of is what i have learned from my experience, Not just my reading.. Ive seen many engines pop because they were ran to lean. that or there just not making power they should because they have so little timing being thrown at them to resist detonation at that afr (and thats dangerous to). If all what your saying is right shouldn't we be hurting things, spinning bearings from having so much gas in our oil, wrecking cylinder walls.. something? We have always tuned are cars for high 10s, low 11s. and never had such a problem. you can say I'm wrong all you want but until our methods quit working I'm just going to stick with them. There are enough people making good power out of stock engines that have the same tuning theory as i do to make me believe that there is something to this. Your telling me that I'm acting like I'm saying you don't know what your talking about.. but your the one who started this argument, in my thread of a stock VG making 400 whp. your the one acting like i don't know what I'm talking about. Do i know all the best ways of tuning... no, but when you came into this thread and told me what i was doing was wrong i defended myself.

internetautomar

iTrader: (30)

Can't we all just get along? :grouphug:

Bryan H

::sigh::

if afr wasn't so important and yielded so little in power gains, why is it i can go from 11.1 to 12.3 afr and pick up 25 whp? hell a car i tuned picked up over 40 whp from just afr tweaking. damn, i guess afr doesn't pick up any power. ::shrugs:: who knew. thank you ole wise tuner of the great masterful efi relm. i guess i can shut my eyes to anyone who is willing to give me a hand in suggesting i try something new.

i wasn't attacking anyone, i mearly made a simple suggestion, you are the one who went and got your **** bent in 40 different directions about it.

maxmaxima91

This is so typical maxima.org.. someone post what they done with there car then someone steps in and say there doing it wrong. Then when the person tries to defend themselves they are flamed and told they they wouldn't listen to the people who are smarter then them , That the person with more experience than them is never even the slightest bit wrong. and if you dont listen to them.. your an idiot. Then matt93 comes in and does some sortof useless comment to defend the guy he knows and make the other person out to be ignorant. that is why the smartest people on this forum .. rarely post.

maxmaxima91

bryan your the one who came in here and told me i was doing it wrong. you didnt make suggestion. you flat out said.. "your to rich" i guess your experience means everything and mine means nothing. o well

Bryan H

you wanted proof. i gave you proof. everything i posted was mearly suggestion. nothing more. i have learned a lot over the years, and am just trying to pass on what i know to other people.

there is a saying, been there, done that.
i never said you were an idiot, get that thought of your head. then again, what do i know.

p.s. the smartest people on this forum don't post, because they moved on to better things.

the only thing you need to do, is put an egt gauge in there. why? it's simple. they show a lot more than just cylinder temps.