Yeah, steve is a good guy... vortech will take care of you

 

This is weird how I was just fixing one of my customer's Wastegate gasket leak today and then found this thread.
The manifold isn't drilled through on the one i'm working on. But, It didn't need to be drilled through because the kit came with studs and nuts to bolt the wastegate onto the manifold. Then two allen head bolt to bolt the wastegate onto the downpipe. I'm talking about the passenger side of the turbo.
Yes, it's a ***** to fix. And I will take the wastegate off to drill the hole larger so it can be more flexible. Greddy send me four new updated wastegate gaskets which has metal o-ring in the middle to prevent blow outs.
Just letting everyone know what I had to do for the fix.

 

Since Greddy told me there wasn't any problems with their kit and added that there is no leak in the wastegate, I can only conclude that shaving the 'Greddy' emblems from your car will chase off evil and give you mad power.

Boys, start shaving off those emblems!!!!

 

My buddy SLAY2K had similar issues and is taking the Greddy off his car...

 

m3powerrr, do you have an A/F reading from your dyno run? Curious to see how the A/F curve looks. TIA

 

Ask and you shall recieve.



This is untuned. We should pickup ~20-30 after tuning.

 

OK, either I am reading that graph wrong, or that is a very scary chart.....ok....please tell me I am reading it wrong.

It lookes like AF is starts at 15, then dips to about 9, then up to about 13?? Even untuned, that looks frightening at only 7psi. Is something wrong? Any timing adjustments?

 

I suggest you do not turn your car back on and run to the nearest tech and have him fix your A/F!! That is a frightening chart!

 

Hahahaha! Darn, Sharif! You beat me to it!

 

Please post a tuned version when you have them. This A/F looks very dangerous from 4K up where it starts to creep to around 13.

 

the argument that the kit is STILL new and all the bugs haven't been worked out is very poor. PE is even a newer kit than greddy and not a damn thing had to be "dremeled"or even messed with. There were some fitment issues with the bumper (and IT had to be trimmed), but that's because the kit was designed for the coupe bumper, not the sedan's Nismo optional bumper.

Out of the box, the kit is NOT seriously workable IMO. And to think that you can get the PE for about 1K more (which is somewhat close to what you would need to spend on the fuel system upgrades) and soon for about the same price as greddy, i don't see why anyone would want to go this route (unless you will be boosting over 17psi).

G

 

Gurgenb01, another possibility is the PE kit is not easily available. Is PE still doing for every 5 JDM tt kit 1 USDM is built?

The fuel system upgrade should not cost 1K. You will need a fuel pump, fuel pressure regulator and some lines which would be around $300 or so, but definitely ignition should be address before boosting more which PE does with the ecu flash.

I have the Greddy TT and I do agree that there are some quirks with this kit that can be quite frustrating, but all kit will have some quirks in one form or another.

Also depending on what the owners preference. The Greddy E-manage provides a lot of flexibility whereas to boost more on the PE kit you will need to ensure your ECU has been flashed for that boost level.

So far with the 2 TT kit out the PE kit seem to be better built in terms of manifolds and parts supplied, but I like the ability to tune the Greddy kit. You can think of PE kit as set once and leave alone and Greddy for those that likes to mess and tune the car.

 

Both of you guys are completely correct.

I repeat for those of you considering the purchase of the kit:

The kit is not the problem. All bolt ons are really not bolt ons. If they were, there wouldn't be performance/mechanic shops. I have no problem making adjustments. The problem I had was the after service/support. It's so frustrating that a problem that I had was solved in less than a minute if I had some support. I tell you, I had absolutely no support whatsoever. All they did was deny the problem.

If you want good power with potential to do more power, I hate to promote it but, it's a good choice. Thanks to boards like this, people can learn from others experiences. Just don't count on Greddy and remember, shave off the "Greddy" emblems. Hey, if you modify the kit, cna't you call it your own custom kit that you made using Greddy parts????

 

m3powerrr, sorry to hear of your problems

Can you tell me excatly which bolts you are referring to ?

Just changed the wastegate gaskets (they were toast) with the Turbonetic metal ones, and I could not see what you were referring to. All bolts went all the way through...

And this kit batch was the 1st (install back in December)

 

On the passenger side, it's the 2 bolts that holds the wastegate on to the manifold/headers. I'm telling you I thought it was tight too. The bolts bottom out because the hole in the manifold is not drilled/tapped all the way through. Check it.

 

Gurgen, this A/F chart is not typical at all. Every out of the box, every Greddy kit with stock boost (5.5psi) and tuning are running safely rich across the board at under 11.5:1. The reason this chart looks strange, as M3 mentioned, is becuase he turned up the boost, but hasnt adding fuel system or tuning to the mix...so of course..it will look kinda yucky.

 

I wouldn't say every Greddy kit. My base line run was decent up to 6k, then A/F goes above 12, and at redline it was almost 13.

 

It will depend on lots of things. All of us have different intakes, exhaust, fuel, air temp, ect. No matter what, if your A/F is off, you just need to tune it. No company can pretune a piggyback for every car. All tehy can do is make a rich as hell and cross their fingers.

 

Just finished changing out the gasket yesterday and no more leak!!!

You suppose to use studs supplied with the kit to mount the wastegate to the manifold on the passenger side. Studs + Nuts = no more problem.

 

m3ppowerr, next time take the car to Z1Motorsports www.300zx.com in Temple, GA. I know they recently fixed the same problem for a customer and then dyno tuned him to 410rwhp / 397rwtq. They used to use Dynolab also but they have their own dyno now.

Good luck!