i took this motor apart and was shocked at the port work....

i will not say whos work it is on this thread, but think twice about "shops" in so. cal.


if this was a noob--his first time porting or something, i wouldn't have anything to say...but this engine cost $3k!!!!!!!

 

how can someone scribe lines from a template, and not even match them????

 

Wow, I was ruff cutting a junk housing and I think it was better than that. Oh and I am using a dremel and have only done 2 engines before in my entire life.

 

I say expose the person who did that crap to save others. It's doing everyone a favor.

Besides the fact that the person who did that can't port worth a damn, the shapes aren't even close to optimal. I'm willing to bet that engine actually flows worse than stock. It is possible to make ports larger but have them flow less. The exhaust port is done completely backwards. The top edge should be the flat one and the bottom should be the rounded one. Not the opposite. That is absolutely horrible for airflow and it probably lost at least 50 cfm that way. I'm not even going to touch the intake ports.

As I'm fond of saying, do you want your engine builder airflow testing or airflow guessing? It's amazing how many people still choose the wrong one!

 

Looks like they sort of had a plan, but did it in a hurry.

 

speaking of testing vs. guessing... you ever gonna send me that flow-bench writeup? i got my dj fog machine and i'm bending some lexan around to make a clear rotor housing, so i'll not only be able to test the flow of my ports, but i'll be able to visualise the airflow patterns with the rotor in different positions a little better and try to get them to swirl.

for fear of someone paying a visit to my house with a gun (or pickup truck), i'm not going to say who did this work here, but anyone can pm me and i'll tell you with the understanding that you keep your mouth SHUT!

 

So the shop is obviously from California. It doesn't look at all like a Racing Beat or Mazdatrix port shape pattern. Hmmmmm.

 

just fo the hell of it....someone give me a rat-tail file and imma try to do better. LOL

 

Who the **** put Mazdabond / RTV on the water jacket o-rings???


-Ted

 

^ was waiting for someone to notice.

 

I thought it was JB Weld.

 

I thought it was white household latex paint.

 

alright...everyone stop pm'ing me!!!!! i figured maybe one or two guys would, but i didn't expect to have to reply to half the forum LOL

 

It is clear, from the surface rust flashing all over the secondary ports, that these plates have been sitting for awhile (several months in the least). That port job is not very well done, in my opinion. I believe it could have been done much better. Also, there is too much attention paid to the closing edge of the intake port and none on the opening.

B

 

Attention paid? Look at that large radius at the shoulder of port pic # 2. I guarantee you the side seals get nearly parallel to that when closing. Bad! Curves like that ate my own motor #1's side seals.

But yeah, bump^

 

teh emphasis was on the quality of the ports...not the rust buildup over time. the front and rear irons cracked at the dowel pins. the builder used gsl-se rotors with s5 counterweights.

these have been saved as evidence for the law suit. (not for the port work, but a bunch of other stuff)

 

That's the funny part, NOT the ports. (The ports don't seem THAT bad... I have seen MUCH worse, like a monkey with ADD and a rat-tail file had done them)

 

those ports aren't good enough to charge money for.

 

Even though I personally agree, if what you've said is true, then in my opinion they shouldn't have been purchased.

B

 

also unfortunately, the person who bought them never got to see them...until it was too late.

 

People usually don't get to see them, so many people send their cars off to have motors built. But their shouldn't be a reason for the person to have to inspect them anyway, it is the shops job to make sure the ports (as well as everything else) are correct.

 

exactly. i don't take pics of every single port i do, but i basically have a small streetport and a large one...each one is pretty consistant from one motor to the next.

 

WTF . man that is some serious **** porting . im glad whoever built that crap is gettin sued . you should give out the name and save many s. cal 7 guys the headaches in the near future. WOW

 

i'd love to help the community more, but the guy who did that is into some bad ****... i'm afraid of him pulling up to my garage with a pickup truck when i'm not home...

 

I personally like that they attempted to make a stencil and came nowhere close to following it. Oh yea the sealant is classic!