AMS made 605whp on a 4wd dynojet with the gt-35r (on c16 of course) but they use stanless steel headers and BB turbo

 

Smogrunner,

Al said that this was a conservative street tune running C16 fuel though. 11.8:1 is fine for a pump gas tune, just have to be conservative with the timing.

David Buschur
www.buschurracing.com

BTW, great job Al!!!! You are the re-flash master.

 

When modifying cars patience is the key to good results. This is especially the case when you are being the 1st one to test out a new product - or in this case - turbo. Often when pushing one component you find that other systems are then maxed out and need to be upgraded.

As one of my mentors in the import performance world used to tell me when I became frustrated with my WRX progress and was blowing up transmissions and having nothing but problems - - "Welcome to Motrorsports"

Frankly - if you can not deal with the need to make some adjustments and corrections and if you can't deal with that in a calm manner without starting an internet pissing match then you should be considering an alternative hobby and just leave your evo stock and enjoy it the way it is. If you want to start adding larger turbos and going for serious whp - ALL the parts need to be working together as a balanced set up - as in this case - the total Buschur Stage 4 kit which has been shown to work well together.

By selecting parts at random such as the HKS intake and the Forge bov both of which did not lend themsleves to the larger higher boosting turbo that is where problems start and frustration develops.

I am hoping that his car will be running to his satisfaction - however - I will tell you right now there is NO WAY that any other reflash is going to make this kind of power on this set up with such a smooth dyno sheet. These kind of results can only be obtained with the Buschur Flash which has proprietary settings and technology developed in colaberation between Buschur Racing and Dyno Flash.

 

The main things they used were a built motor and a built head which allow you to turn up the wick significantly !


I am hoping to come across a customer with a built motor and the BR turbo kit to shoot for a 500 whp dyno sheet on race fuel with the reflash.

However - the reality is the flash is good for casual users looking for plug and play easy instal solutions and up to 450 whp. If you want to approach 500 whp you are better off going with the AEM set up from Buschur as it gives you a lot more adjustability and you loose the MAF sensor which starts to become a real nuisance the more power you make.

The main point here is that Bushur offers the SAFC settings for those on a lower budget or who like to adjust things themselves - they offer the reflash which works very well and is not that expensive and they offer the AEM for those who want the best you can buy. Each product has its pros and cons - advantages and disatvantages and will appeal to differnt kind of end users.

I think the main thing we showed with this dyno result is that the BR 500 kit works well and it can work very well with the Buschur Flash and produce serious numbers on the dyno.

 

I wanted to campare with him bc we basically have the same mods... I also have a Buschur Stage 4 but with an AMS GT35R kit... thats it(as of right now at least)

 

Al or Dave, If the car was tuned on 118octane (for "safety"), how do you know that it will produce those numbers with 93 oct pump? That's an awfully big octane differential to just ignore and conclude that everything is fine, no?

Shiv

 

Shiv - why do you feel compelled to enter into my area of the forums? I thought it was agreed that all vendors would stay out of other vendors forums?

And to answer your question - on pump gas I would recomend this turbo to run lower boost for even more saftey

I would suspect that in most cases 20 - 21 psi would produce about 360 - 370 whp on this turbo on the stock motor

The point of this exercise was to see what this turbo could safely make on a fully stock motor.

 

Obviously - if you have the nerve to take chances either one of these turbos would make well over 500 whp on the totally stock bottom end. As you know in your case and in this case we elected noyt to go over 450 whp becuase we have reservations about going over that muich whp with stock bottom ends

It will be interesting after we run across a customer with a built motor to see what kind of power the BR580 or the AMS kit can make through the reflash

Heck - after these results I may even convert my car back to staight reflash on the stock ecu and see how far it can go

 

Here is a nice easy 20 psi - 11.0 / 1 a/f base map for through the mail tuning with this turbo with 93 octane
Obviously - somewhere between these two figures is where any particular car will be based upon the particular fuel used and the detonation resistance of that particular fuel and car.

Some cars will be able to run more boost and make closer to 444 whp and others will be running lower boost and making more towards 370 (particularly those on 91 octane cali gas)

 

Bigger base map on low boost - street settings - 93 octane mail flash version

 

Its interesting that right now - 12:45 pm eastern most of the 12 people viewing my vendor section are vishnu employees, instalation centers or customers. if you guys want one of these turbos I am sure Buschur will sell you one !

 

Oh so all this power was made on C-16?? that explain whats going on?? I made about 380~390 on 97 far from C-16 gas. I am sorry AL but can you explain to me how he got full boost by 3800 rpm (Isee no power at that RPM and no jump in HP as well) I might be wrong?? oh and I am stock car not stages no cams again

 

Actually - there was a lot more power to be had. It could prob make at least 400 whp on 93 octane fuel. On 97 octane it could make this same power figure - our ignition timing was low.

This sheet is on a dyno which loads differntly than the road in 3rd gear

It makes 20 psi of boost by 3800 rpms ON THE ROAD in 4th gear

I hope that clarifies matters for you

Remember these figures are all with the stock knock sensor active and functional - NOT as in your car with the knock sesnor detuned as is the case with your chosen tuning product

 

Az3ar,

I'd like to jump in here if I may. I don't know what is going on exactly with the cars on the dyno but to be honest the spool up sucks. Pulling the car from a low rpm in 4th gear it doesn't spool on the dyno. Maybe it is the load, not sure. On the street with this BR500 and the BR580 kit if you put the car into 1-4th gear and hit the throttle at say....2500 rpm by 3,000 rpm they make right at 10 psi and by 3800 the boost gauge is at 20 psi and climbing so fast at that point that 30 psi will be there at 4,000.

That is what he meant.

Also, Al made it clear in his first post the car was tuned on C16 and he used his mild pump gas tune in the car, just turned up the boost. In other words he feels that if he had gotten aggressive on the timing and AFR maps then he could have made more power. Instead he ran high boost with a "pump gas" map in the car and this is what it made.

Take it easy on the guy, he did a great job tuning the car, look at the graph.

We only made 505 whp with that turbo on a 2wd dyno, with the AEM EMS and using our ported cylinder head on 118 octane. Doing 444 with C16, stock head, stock bottom end, stock MAS, no stand alone and on an AWD dyno is pretty damn amazing to me.

David Buschur
www.buschurracing.com

 

David, Al, good work guys!! I'm glad you guys are here doing this for our community! These results are extremely impressive; especially considering dollars spent.

Keep up the good work gentlemen!!