sorry to hear that, Frank...

Although I have not done an immediate before and after dyno for only my ported/coated stock exhaust mani, I can say that SOTP-wise it made absolutely no difference in power OR spool up... although I did not have it gasket-matched.

 

Everything was port matched
Both my boat mechanic/tuner & my car mechanic/tuner have told me the same things about much of these mods

 

huh, interesting results Frank. Do you think, as you briefly stated before, it was due to your maxed out turbo or all this porting really does not do much?

 

Thank you very much for posting your results!

Many people on this board think they will gain considerable HP from ported parts and the amount of gains will increase with power output. Your car is an excellent example as it makes more power then 99% of the bolt on cars on this board.

I have yet to see any dyno sheets that show positive results on ported manifolds and your results confirm this.

 

Unless Buschur has raised their prices a lot, the port work is well under $200. They ported my exhaust manifold and turbine housing both for $100 (I declined their coating) a year or so ago. Really fast turnaround too and the stuff came back looking like new (no surface rust).

 

That doesnt mean anything really. You went on a completely different day with the parts. So many factors affect the power on the dyno its just silly. The truth is, the mods do add power. Period. The kick I felt after installing the 02/TH was incredibly noticeable.

 

Soon2BEvo-Don't both the O2 & the TB help w/ throttle response & spool resulting in a better "kick"
Maybe helps average hp, might change the curve slightly,Not necessarily peak hp

 

The 02 should definitely add power everywhere...

The ported TB on the other hand will more or less be slight gains " here and there" which may result in a peak gain, may not. I personally dont think the ported TB/intake mani is worth the trouble but it is inexpensive and certainly cannot hurt.

I have heard rumors the TB adds throttle response, which is awesome and if I here it from more people

 

As hinted on above, I would expect area under the curve and the zone where the turbo has maximum efficiency to benefit the most from porting. Peak power would probbly remain similar to what it was before as stated earlier. Also, every port job is not created equal. I could onlly imagine what would happen if too much material were removed from the exhaust mainifold.

 

There was very little removed from all of my stuff-This is getting down to looking for the last 2% (maybe 10whp) with all of these things.
I will be posting the 3 different curves (baseline-on here now, mods before tuning,mods after tuning) when the tuning is done today

 

Why would anyone want to use a manifold that is not equal length?

 

What are the exact mods you did. Ported manifold, 02, ported TB?

 

Fast Frank, I know you tried both the Invidia and the SS/Ebay O2 housing with poor results, but the Invidia was not shown to make good gains in the first place, so no surprise there... Also, recently, there have been "imposter" Ebay O2 housings that were poorly designed and made no power.

I just hope that you got a good/real Ebay one, but that is the ONE mod you listed that usually makes decent (~10whp) power...

 

blueevo, you gained nothing from those three parts, my question is, what downpipe, cat and catback do you have?

Making power is quite simple, just look at the threads we have been posting lately.

I was just telling someone the other day I can just about look at an EVO now and tell you if it is going to make good power or not.

Here is the combination: IN THE ORDER IT HAS TO BE DONE.

FREE flowing catback, no resonator, no reducers, completely 3" through the mufflers, no baffles and last no extreme bends

OFFROAD pipe, 3"

3" downpipe, least bends possible, no reducers, no flex joint.

Now if you have that the engine can get it's exhaust gases out. Next parts needed:

SS 02 housing. I have tested NUMEROUS housings now. Ported stock housings, W housing, I housing and the SS housing we buy and sell. The one we buy and sell has performed the best and has proven itself on every car it has gone on that I can remember.

10.5 housing. There are two versions of this housing. Both have their own benefits to making power and controlling boost. Both outflow the 9.8 housing. Port match it to the 02 housing and the manifold gasket.

Last thing that needs to be addressed in the exhaust is the exhaust manifold. Best performing part available is the Full Race header for the stock turbo. It will make about 5-7 more whp than our ported stock manifold. Next choice is a PROPERLY ported stock manifold. No other header I have tested will outperform a PROPERLY ported stock manifold. I have seen some pretty funny things when it comes to porting your manifold. Some would for sure loose power. No I am not giving porting classes or advise.

IF you do not have a downpipe/offroad pipe/catback that is EXTREMELY HIGH FLOWING, then don't waste your money buying an 02 housing, 10.5 and porting your manifold, if it can't flow out of the exhaust system putting those parts on will not gain power.

Most guys who add those three parts that don't gain power have a crap turbo back exhaust, easy to explain.

Frankly, this information isn't out there for discussion, I've proven it so many times at this point I can tell you the above is fact and the end of discussion.

I have offered numerous customers the "bet". I say, "The problem with your car is "this". If I put "this" part on and it doesn't gain power like I say it will you can have the part, tuning and dyno time free." They say go ahead and install the part. I haven't had to give away many parts. I can think of one guy who we just could not make more power on, Evolutionary, he is on these boards.

The intake/tb also make great power. On average 15 whp. Tested it over and over. If you aren't making those gains chances are you have a restriction elsewhere just like the exhaust system. Like maybe the stock MAF, a poor FMIC, crappy I/C pipes, a boost leak, a BOV leaking, a poor stock cylinder head (some are better than others).

You may find that your boost drops doing some of these mods as now the engine is breathing better it is harder to keep full of air.

If the ported intake/TB didn't help I wouldn't be using them on these 550+whp builds we are turning out constantly.

As of right now the 4 quickest/fastest Green turbo cars all have these mods above on them. Curt's, mine, Bobby's and Trevors. In the next few weeks more are coming and a few of these will bust into the 10's.

You have to get air into and out of the engine FREELY. Any restriction will kill the power, plain and simple.

Look at these 450+ (even 525) whp numbers on pump gas, big turbos with big non restrictive turbine wheels, big FMIC, well designed i/c pipes, ported stock intakes and 65mm TB's.

It works. You just have to get it right. One crap part can ruin a car, multiple crap parts are sure to ruin it.

 

FastFrank, your car is making huge numbers on the green, it must be Dynojet numbers. Have you run the car yet? Who did all this porting for you, which 02 housing did you run and who did the TB?