93 octane
21psi
Custom street tuned Dynoflash.

PM me for more info rather than highjacking this thread any further.

Nice numbers...

 

How can you measure boost leak?? with what?? I think I have boost leak but I am not sure.

 

You've got to pressurize the intake tract and listen for leaks or swab down all your joints with soapy water and look for bubbles. It's on my to-do list too.

 

ABOUT THE BR440

A few points - first - I would suspect that your numbers are in line for the BR400 at that boost level. The BR440 is not exactly like the stock turbo - it has less back pressure and you can run more boost without detonation with the right tune. In order to achive high 300 numbers - its needs more than 21 psi. Remember the MAX whp rating is 440 at about 30 psi with a AEM and 420 with a flash maxed out on race fuel. 9 psi less would and on pump gas ign timing would be at least 90 whp less than the theoretical max.

The big advantage of the BR440 is that it has the poteantial to make significantly more whp than the stock turbo when you use race fuel and turn up the boost.


DYNO TUNE vs. STREET TUNE

Remember always - and very importantly - dyno tuning is a great way to make dyno numbers. Only through very serious and long term testing over dozens and dozens of cars and comparing the results on the steet and the dyno can you begin to learn the methods for proper dyno testing which closely simulates the actual real life conditions of the road.

At Pruven, I use the dyno as a convieinince and also to help show people the kind of numbers which can be obtained. Since we always use the same exact dyno - under the same EXACT conditions we can compare one result to another and see how it stacks up.

As has been set forth here before many times - it is silly to compare the results on one dyno to another dyno unless you have all the information on exactly HOW the car was dynoed.

MANY dyno operators I have observed do not have any clue how to properly dyno tune a Evo 8.

Fan location, coollant temprature and boost level are all critical to repliacte real world conditions.

 

Here is my dyno designed BR440 reflash on the Buschur Stage 4

This was done with near ideal conditions and perfect fuel

This was at just under 21 psi

Again - this was our first BR440 on the dyno and we spent long hours to max it out at each boost level

Your BR 440 seems to be within 10 whp os this result so I think it is within spec at that boost level




Here we are turning the boost to the sweet spot - 23 psi where this turbo starts to become a real road menace. The BR440 just need some boost to get into its sweet spot

This was with 100 octane for saftey - but still on 93 octane type a/f and timing setings blue is the BR and red is a HKS 3037 - notice how quickly the BR440 spins to boost



Here is the max deal 27 psi - about as hard as I would push this on a customer's car with half 100 octane and half pump gas

Still a pump gas style tune but the xtra furl for saftey

 

Al, Dont his tq levels seem low..

 

Generally the BR 440 seems to make a bit lower max trq than a stock turbo which shoots up the trq fast and then drops

The BR440 really makes its power up higher in the power band - it pulls hard to red line

I will post up a dyno sheet of the trq curve in a few of the 350 whp 20 psi pull

 

Great job Al...........

 

Well, I have to apologize for stirring up a beeshive and displaying unfounded bitterness. I should have checked my **** before mouthing off.

I just went out to the garage and pressure tested my system. I found a huge, huge friggin' leak in my intercooler core. The damage was not apparent until I pressurized the system. I'll have to either have it welded or purchase a replacement. The good news is my 1G BPV holds...

 

Notice guys - on the BR440 the power comes up good - but does not slam hard at first, it builds like a smooth wave to the end of the power band

The stock turbo slams in hard and boosts up the trq immediately = but then it falls down to the red line fairly hard

On the street the BR440 will walk the stock turbo car with same power likes its standing still as the Br440 pulls a lot harder up top

Remember - I did not build or design the BR440 - I just tune them

I personally happen to like its power band and the way it drives on the road

However the trq is a bit low for the boost levels - IF you compare it to the stock turbo

Finally - please relaize that this maniac customer with this dyno sheet was attempting to get ready for a race next week and we pushed his stock turbo to the edge that was humanly possible - his results are NOT typical on a stock turbo with stock fmic

 

Repairing that leak will boost your output into the same mid to high 350 whp range as the sheet I just posted - - ASSUMING that all other conditions are equal

By the way your car was driving - when I drove it it was making easily over 350 whp with no doubt

 

Whats up guys. Thanks to Al and Shaun from Pruven performance we were able to find all my boost leaks AND find out that my boost controller was not working properly. I had the joy of driving this car home afterwards, and oh my god is this thing FAST!! Thanks to Al and his great customer support. I thought my car was quick before, now this thing is throw you back in your seats fast! Holy cow! All this on stock FMIC, stock turbo, stock throttle body and stock intake manifold.

 

nice numbers!

AL btw thanks for the trailer.crazy trip.

 

After listening to evos for over a year almost every day being tuned - I can hear boost leak clear as day. You can tell by ear when you hear the pitch of the turbo under boost.

You can locate the boost leak by pressurizing the charging system with an air hose from a compressor - member bishiboy has posted an interesting thread about the process in another section of the forums - do a search

 

haha, maniac customer. Yeah thats me. I'll let you all know how the car runs this weekend and I'll post my times. Thanks for everything Al.