it'd be a fun little experiment

 

whats being proved by running the stock unit until it breaks? just to show how much HP is achievable? with all that time being spent on tuning wouldnt it be cheaper to just upgrade the turbo?

or is it for professional racing to stay in a certain class?

 

The stock turbo is a very very good part. Too many guys are in a hurry to change it out for something larger in my opinion.

As time goes the guys that stick with the stock turbo are going to make more and more power with it and run faster times.

I have stuck with the stock turbo on my RS myself. On 94 octane the car has made 393 whp, as I have said.

I don't think any of this is an experiment to make the stock turbo fail and if my guess is right the stock turbo is going to live longer than any aftermarket turbo available. Not to mention if it does break there are enough guys taking them off that you can buy them cheap to replace it.

The only class that requires a turbo to be "stock" is the DSM/EVO shootout that we hold, we have a class that the turbo has to remain stock APPEARING.

I think messing with the stock turbo for a lot of us is just to get some bragging rights and show just how good it really is.

David Buschur
www.buschurracing.com

 

thanks for the info

 

Here are the dyno Sheets!

1) Dyno Sheet was in 3rd gear , holding 22-23psi to redline
2)Dyno Sheet was in 4th gear, Holding 24-26psi!

 

I'm guessing that's the same Aerocomp Mustang dyno where Miguel magically got 357awhp with basic bolt-ons, not including cams, and just a flash with AFRs in the 10s all because he went from dynoing in 3rd gear (307awhp) to dynoing in 4th gear (357awhp). Something is awry in Orlando, because there should not be such drastic changes between gears...

Jose, from your sig, you are a great driver, so settle this Aerocomp dyno issue by going out and running 10.8@126 on your current setup. Even if you don't quite get the ET, if you can get close to 125-126mph, we'll know the Aerocomp readings are good (in Dynojet mode, that is).

 

he did 307whp in 3rd gear then like 342 whp in 4th , Then he removed the stock air box cover and did 357whp!

Pd- Remember that in 4th it holds 2psi more! also if he will had removed the airbox in 3rd gear it will have been more like 322whp!

Pd- Last time i weighted my car was 3400 with 1/4 of gas and no roll bar
Curt Brown Weighted 3150 With driver

 

My car doesn't run that much higher boost in 4th than 3rd...it's about the same. Others who have taken the air box cover off have LOST hp...there's no reason to gain hp by removing the top of the box. On regular dynos, most people have no more than a 3-5whp difference between 3rd and 4th, but somehow the numbers on this Aerocomp Mustang dyno (adjusted to mimic a Dynojet) are SIGNIFICANTLY higher when switching to 4th, and no, it's not just raised boost.

You know enough about Evos to know that his mods can't get anywhere NEAR 357awhp on 93oct...hell, not even with C16, because he has a regular flash! He wasn't even tuning the thing on the dyno, and it had rich AFRs. The 307awhp was EXACTLY where you would expect him to be, and is why no one believes these dyno claims in 4th gear that are so much higher.

I'm not worried about Curt Brown...I'm talking about your numbers. If you ran 11.67@117.5 with 373whp, then you should be able to run 10.8@125-126 on this new setup with 466whp. Since you may have clutch limitations, I left room for you not to hit the ET as long as you hit the mph, because that is the true indicator of HP.

 

No Clutch Limitations here! 373whp in 3rd now 432whp in 3rd . with 57whp gain u think 8- 9 mph gain! TDon't Think so more like 4-5mph!

 

Well, you said it's really 466whp and that the 3rd gear reading isn't legit. My 4th gear makes the same power as my 3rd gear, and I hit mph consistent with my dyno readings. Your 117.5mph was dead-on with your 373whp, so if you end up running 121-122, then we know your whp is really only 430, not 465, especially since you spend most of your time and distance in 4th gear where you are supposedly making this massive 465whp. If you get closer to 125-126, then you know you really are making 465whp.

 

Couple things. #1, you drive an MR with close ratio 6sp. Your 4th gear is closer to his 3rd gear. The shorter gears create a smaller load on the motor, hence lower change in boost. Try a dyno in 5th and you should see a difference.

The airbox lid off raises WHP 10-14hp. I have seen this work on 2 different dynos as well as different Evo's also. I run lid off and have for a while now as I did on the dyno Sat.

I have hours of datalogs that would back up BoostedJoe's claims. Just by looking at the graphs you can see that the only difference is the boost does not drop off and keeps pulling due to the higher load of the higher gear.

 

i didn't read the entire thread....but if this is the same dyno that was "recalibrated" that you(thread starter) made so much power on....its total BS

 

Thank You! Enough said lol!

 

I understand the gearing difference between the 6spd and 5spd, but I wasn't just referring to my car. It would make no sense for me to dyno in 5th since that is less than a 1:1 ratio. Any reading would be inflated for dramatization, as it seems these 4th gear pulls are...

Not sure why the lid off would work better only in Orlando, but it's definitely not the way to go for most people. People don't gain that much hp with ANY intake, much less just from causing the air to be hot and turbulent by removing the lid. Scott, you know that doesn't make any sense...

Your hours of datalogs show that he is making 469whp that will propel him to 125mph in the 1/4? According to your mph on 93oct, you are only making 325whp, which is 32whp less than Miguel, but I'm guessing you dyno higher than 325 at Aerocomp (in 4th gear).

 

Some people pay way too much attention to dyno numbers. A dyno is a tuning tool that is all. The asphalt dyno is the only one that matters. He has gone faster than most stock turbo cars. Now he is making over 50whp more. His car will be very fast. Notice he was not the one that started this tread. He is all about the track numbers which he will have as soon as some issues are taken care of.


Also his old time it may sound as an excuse but to go fast in Florida summer weather you really have to be fast.