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just back from finer tuning,nice numbers

Discussion pertaining to positive pressure E28s.
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red535t
Posts: 204
Joined: Jun 03, 2007 4:53 PM
Location: auckland,new zealand

just back from finer tuning,nice numbers

Post by red535t »

Jays535is
Posts: 1193
Joined: Mar 20, 2007 5:28 PM
Location: Spokane

Post by Jays535is »

370hp to the wheels nice!
Brent in NZ Hartge 535i
Posts: 250
Joined: Feb 12, 2006 12:00 PM
Location: Auckland New Zealand
Contact:

tis good!!

Post by Brent in NZ Hartge 535i »

when do i get a test fleight
pics put up to see ..
Image

Image
SilverBullet
Posts: 120
Joined: Feb 12, 2006 12:00 PM
Location: brisbane, australia

Post by SilverBullet »

That is awesome! Congrats on a job well done :alright:
A list on mods etc?
red535t
Posts: 204
Joined: Jun 03, 2007 4:53 PM
Location: auckland,new zealand

Post by red535t »

http://www.mye28.com/viewtopic.php?t=34032

that should give most of the details of engine mods etc.
have changed afew things as things progressed.not the motor as such,but the bits around it.cooling wise-it's good, no dramas.heats alittle in traffic.biggest problem is the plastic tanks are bulging so need to change back to standard radiator before it blows. usually happens when your furtherest from anywhere,or so i've heard.

It does run alittle hairy on light throttle/cruise speed.feels like the choke is on.engine burps and 'misses'. and still back fires costantly when its throat is closed.(a bit more tuning i'm guessing)
but thats all cool.it runs and pass all things i come accross.
gave a 335 a red face,a golf R32 who doesn't know what just happened and new 307 GTS holden who really needs to trade it back.

One Q, at 14.5psi how am i getting these numbers?
just comparing with sum of the other posted dyno sheets.
NOT gloating,just cant see why.

cheers all marty
Brent in NZ Hartge 535i
Posts: 250
Joined: Feb 12, 2006 12:00 PM
Location: Auckland New Zealand
Contact:

14.5psi how am i getting these numbers?

Post by Brent in NZ Hartge 535i »

One Q, at 14.5psi how am i getting these numbers?
just comparing with sum of the other posted dyno sheets.
NOT gloating,just cant see why.
thats becaused you used the old KIWI trick with number 8 wire
T_C_D
Posts: 7733
Joined: May 27, 2009 11:42 AM
Location: Twin Cities
Contact:

Re: 14.5psi how am i getting these numbers?

Post by T_C_D »

Brent in NZ Hartge 535i wrote:
One Q, at 14.5psi how am i getting these numbers?
just comparing with sum of the other posted dyno sheets.
NOT gloating,just cant see why.
thats becaused you used the old KIWI trick with number 8 wire
Honestly, those numbers seem correct for a b35 head and standalone. My 208k mile stock m30b34 made 348rwhp/395rwtq at the same boost level.

Todd
rundatrack
Posts: 454
Joined: Feb 12, 2006 12:00 PM

Post by rundatrack »

Very good numbers


Lovely car.....great products give you great results...
russc
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Location: SF Bay Area, CA
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Post by russc »

You'll get 10whp buy getting a real cold air intake. Nice set up though. The dyno #s are spectacular. So 370whp?

RussC
red535t
Posts: 204
Joined: Jun 03, 2007 4:53 PM
Location: auckland,new zealand

Post by red535t »

russc wrote:You'll get 10whp buy getting a real cold air intake. Nice set up though. The dyno #s are spectacular. So 370whp?

RussC
yeah your right about that cooler setup.not big enough.
these numbers were from the first run.second down by 8hp.
3rd 15hp,4th-dnt go there.this was with a minute or two break in between while the guy fiddled with the map etc
basically temp lifted from 17c to 35 in first run. 28 to 45 2nd run, 39 to 55 etc.

cooler looks go and i'm picking works well for road situations.track is going to be a whole different story.
ecu does have a timing retard map built in to its program that adjusts to intake temp.

now to fix the rear end of the car,(rear wheel steering and general suspention slop) and we'll give a few guys in the beemer club a good scare :lol:
M. Holtmeier
Posts: 3036
Joined: Mar 11, 2007 3:06 AM
Location: Josephine, Texas

Post by M. Holtmeier »

A simple water injection system in front of the turbo could help out. I thought this was interesting:

http://www.rbracing-rsr.com/waterinjection.html
http://www.turbomirage.com/water3.html

Nice setup BTW!
Duke
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Joined: Feb 12, 2006 12:00 PM
Location: Ormond Beach, FL

Post by Duke »

grsmonkey wrote:A simple water injection system in front of the turbo could help out.
I would not load up the turbine with water. Place the WI nozzle after the intercooler or turbo if you do not have and intercooler.

Remember, WI adds a new tuning factor.
M. Holtmeier
Posts: 3036
Joined: Mar 11, 2007 3:06 AM
Location: Josephine, Texas

Post by M. Holtmeier »

Yeah, I'd be a little nervous doing it, but it sounds so tempting. I found this thread in the aquamist forum that spans almost 3 1/2 years. They talk about how current turbine wheels are made from better materials and are more robust. The jets have to stay small and a certain micron level has to be maintained or damage can occur. Kind of like riding a motorcycle at 60mph in a heavy rain storm vs. a heavy fog. Rain hurts! Apparently, the major advantages of WI before the turbo is you can actually manipulate the compressor map. When the compressor is relieved of the energy it takes to build heat, the result is more boost at the same exh gas input, or less energy needed to build boost.

I am no expert on this, I'm purely regurgitating what I have read, so take this info purely as food for thought.

I know I fought high ambient temps with my car. I was running upwards of 130F on pulls, killing power. My IAT sensor is mounted just behind the plenum-a straight shot from the t.b. I built a cold air box using your idea Duke but kept the same HE's. Shrouded both of them and ran 2 fans ducted front to back pulling fresh air only and dropped the IAT's to around 100F. It was much better! But I want more...
turbodan
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Joined: Jan 09, 2007 10:19 PM

Post by turbodan »

If I did that, I'd inject water into the hot side of the intercooler. With an air/air cooler, the core could act like a swamp cooler pad. I dont know if the possible corrosion damage would be worth any gain though.
turbodan
Posts: 9246
Joined: Jan 09, 2007 10:19 PM

Post by turbodan »

grsmonkey wrote:A simple water injection system in front of the turbo could help out. I thought this was interesting:

http://www.rbracing-rsr.com/waterinjection.html
http://www.turbomirage.com/water3.html

Nice setup BTW!
You might note that the rbracing link is not quite safe for work near the bottom....
russc
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Joined: Feb 12, 2006 12:00 PM
Location: SF Bay Area, CA
Contact:

Post by russc »

8)

RussC
turbodan wrote:
grsmonkey wrote:A simple water injection system in front of the turbo could help out. I thought this was interesting:

http://www.rbracing-rsr.com/waterinjection.html
http://www.turbomirage.com/water3.html

Nice setup BTW!
You might note that the rbracing link is not quite safe for work near the bottom....
red535t
Posts: 204
Joined: Jun 03, 2007 4:53 PM
Location: auckland,new zealand

Post by red535t »

yes, WI does look interesting.

I think I'll first spend the money on better suspension setup in the rear though.
When i get some more tuning orginized, working on getting the AFR a bit closer to 12.5-1.maybe get the torgue numbers up from the 800nm at present.if the quote from the info that 13.1-1 is optimal that is.(if that 800nm is actualy accurate is whole other matter)

the real problem is however
1) how often do we get to drive 15lb+ boost??
2)the straighttish roads round here are just too short

cheers marty
M. Holtmeier
Posts: 3036
Joined: Mar 11, 2007 3:06 AM
Location: Josephine, Texas

Post by M. Holtmeier »

1) how often do we get to drive 15lb+ boost??
Whenever the engine is running.
the straighttish roads round here are just too short
Straighten the curves, flatten the hills.

8)

Oh yeah, that second link may contain material that is not work safe...
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