Coming in....advise on potential set-up? (newer dyno #s!)

[e30-m30_kid89]

^^^^^^It was done right before i posted, my sister stole the camera and went to Nova Scotia so no pix...I could get some crappy phone ones if you like....

It was a good but fustrating weekend to say the least, I tested the questionable spring in a friend's wg with a air compressor to confirm what i thought, it's a 7lbs spring

It was a long weekend and stores were closed so I found a guy who sells turbo ebay jazz locally. I asked him if he had a 1bar spring and he said he did! Picked it up for 5 bucks and figured I might as well try it out (I turned on overboost protection just in case) and it was an epic fail, I only got 11psi out of it

So the new plan is to go back to the store I got the gay spring from and bitch/complain so i get the right one. Ugh!

Hopefully my next post is along the lines of "O SNAP!"

[iXer]

You do realise that the diaphragm in the wastegate must match the spring to make any kind of comparison? The diaphragm is what the pressure acts upon, the spring is the counter-force.

Asking for a "1 bar" spring over the counter does challenge the intelligence of the guy who sold it to you, he should know better but that is not the world we live in today, sadly..

Keep the spring you have, and add a 0-2 bar air pressure regulator to the top of the wastegate for some easy pre-load.

[bornagain]

shitty deal on the springs bud, another thing to mention is that depending on manifold setup and what not you may never get what is rated out of a spring. ie i get a peak of 7.5 out of my 7spring but i runs at 6.5 almost all the time.

[e30-m30_kid89]

Well I went back and got the proper 1bar spring....Thats probably why I haven't updated i've been having tons of fun and just DDing it.



That's how the car sits now, I went to a local late night bmw meet this past friday. I got some 16" e38 basketweaves and some falken RT-615s in 215/45/16 in anticipation for some track time later this summer or in the fall. I also managed to stuff some front e36 m3 brakes/rotors up there for crazy stopping power, IMO one of the best mods I've done to the car, it needed it!

EDIT: I also "played" with a few cars including a turbo h22 accord(beat him by a car with those wheels in my trunk ), a friend's s54 swapped e36 running a 3.91lsd and 6spd (also a bit less than a car) and a turbo pushrod?? cavalier (blew him outta the water) my friend has some of the vids on his iphone I can get them if you guys want...

I may start another thread even though it's been brought up before but seeing what those miller cars are putting out i'm considering and researching water/meth injection. At the moment I've been running 18* of timing at peak tq on 91 pump with no audiable detonation but during the hot 25-30deg days I feel It could help out the intercooler with the massive heatsoak from mixed city/hwy driving. I'm only running a 26x6x3.5 intercooler, Do you think its close to the limit or past it at 1bar? I could simply try squeezing in another larger fmic but it may get in the way of my electric fan.

Thoughts are welcome!!

[T_C_D]

I may start another thread even though it's been brought up before but seeing what those miller cars are putting out i'm considering and researching water/meth injection. At the moment I've been running 18* of timing at peak tq on 91 pump with no audiable detonation but during the hot 25-30deg days I feel It could help out the intercooler with the massive heatsoak from mixed city/hwy driving. I'm only running a 26x6x3.5 intercooler, Do you think its close to the limit or past it at 1bar? I could simply try squeezing in another larger fmic but it may get in the way of my electric fan.

Thoughts are welcome!!

A bigger intercooler is a much better and more reliable solution. You should probably revisit the Miller thread.

[e30-m30_kid89]

I may start another thread even though it's been brought up before but seeing what those miller cars are putting out i'm considering and researching water/meth injection. At the moment I've been running 18* of timing at peak tq on 91 pump with no audiable detonation but during the hot 25-30deg days I feel It could help out the intercooler with the massive heatsoak from mixed city/hwy driving. I'm only running a 26x6x3.5 intercooler, Do you think its close to the limit or past it at 1bar? I could simply try squeezing in another larger fmic but it may get in the way of my electric fan.

Thoughts are welcome!!

A bigger intercooler is a much better and more reliable solution. You should probably revisit the Miller thread.

Yeah i just seen it, I'm really on the fence with the W/I business...bleh I probably won't do it. How much more bigger do you think I would need to go with the intercooler in terms of the "usual" power levels of an m30 @ 1bar? I haven't completely ruled out water to air but everyone says it only shines over air to air in drag racing.

[George]

Unless you're under a budget constraint, do both. The hotter the ambient temps are, the more effective water/meth will be.

[e30-m30_kid89]

Unless you're under a budget constraint, do both. The hotter the ambient temps are, the more effective water/meth will be.

Not really under a budget constraint but at the same time I'm not going to blow 1k on a W/I kit, since im not really battling det but just want cooler IAT's. The turbo e36 guys love using water/meth and i know they have fail safes and stuff like that but Id still be worried about little things like if the injector is clogged, if the tank runs empty during a pull and things like that. also i'd feel more confident in one system keeping things cool versus 2 separate ones

I guess my 2 issues are:

Cooling capacity
Space

I'm bored and home alone and looking more into some water to air intercoolling..Geroge you DD your turbo 6 with the water/air IC, how are the IATs? I was always under the assuption that for road racing the water to air wouldn't be as efficient as a air to air but from what i've read with a properly sized heat exchanger it can work pretty well, not to mention the shorter piping advantage too.

As of now i'm thinking maybe an water to air wouldn't be so bad but I want to make sure before I splurge on getting everything together as I think it solves both of my issues.

[George]

I'm bored and home alone and looking more into some water to air intercoolling..Geroge you DD your turbo 6 with the water/air IC, how are the IATs? I was always under the assuption that for road racing the water to air wouldn't be as efficient as a air to air but from what i've read with a properly sized heat exchanger it can work pretty well, not to mention the shorter piping advantage too.

As of now i'm thinking maybe an water to air wouldn't be so bad but I want to make sure before I splurge on getting everything together as I think it solves both of my issues.

Car is hardly a DD. I haven't even driven it about a year. When I do drive it I drive the piss out of it. Currently running somewhere around 18psi. Too much shit going on in my life to bring it to the east coast and give it the build it deserves.

Anyway, even after really hard running, I don't see over 20 from ambient. On average I'm 10-15 over ambient. I've also modified the stock system though. I first ran two of the stock TCD pumps (I think they were from a MBZ, but can't remember). Then I switched over to a Bosch Cobra pump and increased the volume of the system with a larger reservoir and significantly larger heat exchangers. I'm considering actually using an all aluminum radiator built for a Honda Civic just to cool the water in the I/C system. I'm also considering installing water misting jets that activate when the temps in the HX system reach a certain pump.

I'm all for W/M. I've installed and tuned quite a few on my own. If you use the windsheild washer fluid reservoir, you have a built in low system warning. I honestly believe that your chances of clogging the nozzle are no greater than and a fuel injector becoming clogged. I'd say keep your current tune where its at and start with a small nozzle and monitor the results.

I also wouldn't go with anything other than Aquamist. I've messed with the progressive stage 2 systems from both AEM and Snow. Aquamist is superior in every way.

[e30-m30_kid89]

Ok, Things have taken a slight change of direction...

A good buddy of mine who has a beautiftul mint 635 shark decided he wants to go big, turbo s38 big. He at the moment has a rebuilt b34 with maybe ~20000kms on it since the rebuild and asked if i wanted it...Of course i said yes! The price was one "I couldn't refuse." Still have to pick up the motor from the shop but as soon as I do i plan to yank the head, get some ARPs and install the m5 HG. Now for my questions

I want to "upgrade" from the b34 stock cam, I've spent the past 2 days reading through old threads to soak up any info i can so I can't get the reply "search through the old threads"

I want a "turbo" cam but it looks like N/A performance cams work well too.

I've narrowed it down to 3 choices:

-Miller performance's turbo cam:
http://www.millerperformancecars.com/ca ... lypage.tpl

-Stock B35 cam

-Paul burke's turbo cam???
http://www.bimmerpro.com/m30-turbo-perf ... 30-t31-011

I like the fact that help improve power and lower cyl temps so with my plan to only run 14-16psi max for the street and a modest 7psi for the track I want to do simple things to get a bit more out of the turbo setup. Was looking at regrinds originally but then found out they are crap.

As for the intercooling I've decided to try fitting possibly 2 more sizes, It will take some work to fit espically with my e-fan in the way but I want to try 2 sizes that i think will fit|(core size):

-21"x9"x2.75" (has good easiest chance of fitting)

-11"x12"x3" (Will take work and swearing but could fit)

Could these be big enough and support 400+hp? I wont be pushing that much but extra head room is nice. The size i'm currently using now is the EXACT same as the precision 350hp intercooler...21 x 6. x 3.5

Why the motor change you ask???

It's a deal of the century! I planed on rebuilding one anyway since my donor car's ODO stopped at 498xxxKMs
The motor is still purring(err ticking) away as usual and smooth as normal.

The eta of the motor prep/install into the car will be a month for now, still gotta enjoy the zomg TQ for a while longer

Comments/suggestions are welcome as usual!

D.

[George]

Some random I thoughs bouncing around my head:


Current IC is way too small. Frontal area is a good indicator of HP rating.

I'd go with the 21x9 unit as I hate cutting shit up and I even have a plasma cutter.

Paul Burke cam all the way. Biggest mistake of my build was using a (new) b35 cam. Too mild for my taste. I really wish my power built to 6.5-7k rpm.

Not sure I agree with your motor choices but to each his own.

[e30-m30_kid89]

Not sure I agree with your motor choices but to each his own.

What would you suggest? a B35?

[George]

Not sure I agree with your motor choices but to each his own.

What would you suggest? a B35?

Ja

[QBANG]

e30-m30_kid89,
Nice build, not sure how I missed this one. Have you thought about going with meth injection or better yet E85 if you have it in your area?

[bornagain]

I think he is stuck Like me with e10 94 octane.

[paul burke]

Please post how the Miller cam works out.

Paul

[T_C_D]

Please post how the Miller cam works out.

Paul

Tell us how you really feel Paul.

[e30-m30_kid89]

Wow...THE paul burke posted in my thread!!!


After tons of deliberation and going back and forth, tommrow morning I'm going to pay for a mint B35 with 137000kms and warranty:D ..Figured with the higher compression VS the B34, bigger ports and mild cam it'll all benefit me since I only want to run 7-14psi. Also no need to swap to the e34 pan which is needed to fit in my e30.

Still kinda a PITA however as i'll need the Koala mount adapters but in the end It'll still be worth it!

ETA If everything goes well is anytime before July 22nd, there is lapping day i'd like to attend!

Only thing i plan to do prior to install is tap the block or pan, get the head cleaned/decked and install a OE M5 headgasket with my ARPs from my current motor.

Still also deciding on what im going to do about the intercooling..

[e30-m30_kid89]

Done done and done! a truck willl be dropping off the b35 at my place tommrow! I ordered the right side mount as well this evening, I doubt it'll make it here this week but this gives me time to "prep" the b35 before dropping it in. Still gotta pull the block/trans out..may do that later this wk if i get a buddy's cherrypicker.

[bornagain]

nice work good stuff. looking forward to new dyno sheets.

[Shadow]

Please post how the Miller cam works out.

Paul

Tell us how you really feel Paul.

Must be a really kick ass good cam if paul burke wants
to know how it runs.

[George]

Please post how the Miller cam works out.

Paul

Tell us how you really feel Paul.

Must be a really kick ass good cam if paul burke wants
to know how it runs.

[paul burke]

Please post how the Miller cam works out.

Paul

Tell us how you really feel Paul.

Must be a really kick ass good cam if paul burke wants
to know how it runs.

Helps me sell more stuff !!

Paul

[e30-m30_kid89]

Heh..got some cell phone pics.




Shes here!



And the teardown has begun. as i took it apart i very happy with what i was seeing...I really belive the mileage of the motor now

Tommrow is a holiday so i'll be dropping off the head at the machine shop friday which should only be a resufacing since everything looks to be in great shape.



Also got 35% tints all around shortly before parking the car.

[Nebraska_e28]

Got a pic from the rear? Thinking about 35% tint myself.

[e30-m30_kid89]

Sorry didn't get any pics from the rear.

I did a lot of work the past 2 days in the hot ~40degC weather with the humidex:b
-Pull motor from car
-swapped accessories to the b35
-installed flywheel on the b35
-installed the KMS adapter(fits like OEM) and bolted up my motor mounts.
-started on splicing/re-wiring the e34 injector/harness box into my modded m20 harness since it looks so damn good and should clean things up a bit.

Still waiting on the cyl head from the machine shop..they still haven't even touched it due to all the backlogging from the long weekend Paitiently waiting on it so i can TQ it down then finally get the motor into the car.

Also pulled the oil pan off the b34 i was using to see why i could never get a proper reading on the dipstick. Turns out the tube was ever-so slighty bent and the red handle dipstick was hitting the e34 oil pump also find some broken pieces of my guide rail in the pan as well

I cleaned it all out and got another fitting while i was in there to address my old oil drain re/re thread.



That is a 1/2npt to a -10an 45deg fitting. I angled the pan to see the real angle of it once its installed.


thoughts? good bad? Worst case i still have a -10an weld-on bung but that i'm thinking that should be fine..

[bornagain]

did you take a look at where you drilled the hole and if it lines up with the crank journal or con journal? This can cause issues ass swell for oil backing up.

[Shadow]

A better place to tap is on the front of the pan.
Oil will pool in that whole elbow deal. Not a problem if the line
is long enough, but just saying.

[e30-m30_kid89]

A better place to tap is on the front of the pan.
Oil will pool in that whole elbow deal. Not a problem if the line
is long enough, but just saying.

The hose is long so hopefully the oil has enough momentum to make its way over the elbow. I dont think i could have tapped the front, remember the turbo is all the way back at about the subframe. that woulda been a super long drain!

I did some more work today and yesterday, I swapped oil pans and was happy to find no spare parts in the pan, it was really clean in there and not sludgy.



I also finished splicing in the b35 harness box into my harness...a very straight foward process. Im happy with the way it turned out so far and cant wait to see how it makes things look when everything is back in.

If i have time this weekend i'd like to rent a powerwasher and clean the bay "while i'm in there"

Still no word from the machine shop...

[e30-m30_kid89]

After tons of going back and forth I picked up another intercooler this weekend.

It's a eBay bolt-on Intercooler for the mitsu Evo 8..the dimensions are 20"x12.5"x3.5"....It took some work to fit but i mocked/mounted it all up this weekend, just need to do some final trimming on the valance and order one of those super slim spal electric fans which i have already done this week is do or die week, I'd really like to get the motor into the car by the weekend the LATEST but i have to call the machine shop and see if they even did anything to the head yet

Here's a pic from the eBay ad: