Greddy TT kit dyno'd, some thoughts
 

Okay guys I dyno'd the TT kit with 6.5 PSI or so of boost. It layed down a respectable 369 whp and 338ish ft lbs of torque. This is all with the base Greddy map and E-01. Problem is the fuel pump is not keeping up and it is leaning out a little at the top end. I woudl recommend you folks pick up a fuel pump upgrade when installing this kit prior to tuning it out. If you want to just keep it at 6 PSI it is pretty safe but if you plan on taking boost up a smidgen and retuning the E-Manage, do the fuel pump beforehand. Other than that the kit ran darn well.

i will paypal you $10 if you PLEASE give me a copy of your dyno graph.

-Charles

Way to go Dan!
I just came back from my Dyno, and had to reschedule till Monday :(...

Not bad. Can you share the A/F ratio? Thanks.

It would be intresting to layout the Greddy TT dyno against the Procharger on the same graph.

Re: Greddy TT kit dyno'd, some thoughts
 

Correct me if I'm wrong but isn't the GReddy kit set to 5.5 psi. stock? If so, how did you get away with raising the boost to 6.5 psi. on the factory map? Could that explain some of the leaning out up top?

Re: Re: Greddy TT kit dyno'd, some thoughts
 

Read again.

You guys are going to run into some interesting finds even with an upgraded pump...so far from what we have seen, the Walbro 225 still dropped pressure up top as well....working on trying to figure out a better solution

Grrr, well PE has no problem with fuel pressure and I am trying their new 255 l/hr pump upgrade. I'll investigate further next week.

post dyno graph! i wanna see dem curves.

Dan - I have heard the PE is nothing more than a walbro in a fancy box....try and get me the part number off the PE, I'll confirm, and if need be, we have heaps of the Walbro in stock.

PE is also using 1420's...a far cry from the 18G of the Greddy kit, so that could account for some of it (though both kits run very low boost relative to the turbos used.

Also, what exact injectors is Greddy using (in terms of brand) - PE might have the edge if they are using one of their dual nozzle styles.

Greddy is using the rc lucas 440cc injectors. I also don't think the fuel pump is max out on 6.5psi of boost 10psi would be believable but not 6.5. just remap the e manage and you should be ok.

E-Manage is showing 100% duty cycle and I know the 440's are not maxed out so it leads me to believe fuel pressure is dropping. As for PE kit it uses Denso injectors and Denso pump. I sincerely doubt it is a Walbro but I'll know next week.

actually if greddy used the injector change feature and adjusted only the map chart and not the injector chart it would read max out because the emanage thinks that it only has 280cc injectors and adding the fuel pump won't change it. I would say you are going to have to reprogram the e manage. That is what I would do first before spending money on a fuel pump.

WHere did u mount the E-01? Were u able to place it where the DVD navigation screen goes?(assuming u dont have the dvd screen?

Yes it fits perfectly in the little nav slot. The three Greddy gauges replaced the factory ones on the dash.

Re: Re: Re: Greddy TT kit dyno'd, some thoughts
 

The statement in bold lead me to ask the question about running higher boost on the base map.

So I will assume some extra tuning was done with the E-01.

The Z and the TT kit looks great by the way. Here's my understanding regarding the 6.5 psi. The 5.6 base psi map is for the TT kit without the optional intercooler and there is a base 6.5 psi map for the TT kit with intercooler installed. I'm pretty sure when I asked Dan, (I'm not positive though) that he said there was no tuning with the e-01 yet because the stock pump was putting out all it could. Tuning will come after the install of the new fuel pump. The initial dyno produced some strong numbers, but showed a drastic change in the a/f ratio at higher rpm's. Can't do much with tuning if the stock pump is maxed. Hopefully, the new fuel pump can supply enough fuel/pressure to support the 6.5 psi and higher boost.

FWIW I've heard the same thing.

How do you know? How does the E-Manage detect duty cycle? The cheapest thing you could do would be to fit a temp fuel pressure gauge and check your theory.

totally agreed apsilon...Dan I think you'll find pressure is dropping off alot. Can the Emanage log injector pulsewidth (in ms)..if so, use that and back yourself into the duty cycle, just to verify how the EManage computes it..there are right and wrong ways (the wrong being much more typically found in my travels)

As for the injectors, the 440's should be fine for upwards of 400 hp.