Here is the write up that my shop did on both kits. There are pictures with both kits side by side.

Click on the link to see the white up.

Greddy 350Z TT Kit VS. APS 350Z TT Kit

 

nice comparison

 

Nice comparison, thanks for posting....

 

Good write up . . .

 

Very Nice to comparison

 

very nice.

whats the cost on both? they do not mention that and I could not find it on their website...

 

I was happy to find that APS did enough engineering on their fuel system to realize that the return fuel needed to be plumbed thru the factory assembly into the factory regulator dump in order for the siphon jet to draw fuel from the drivers side of the tank.

I still would have prefered a regulator up in the engine bay... but I would bet that they figured it wasnt worth reducing the cost effectiveness of the kit for parts that most people buying the kit will never need.

Anyone going for huge HP is gonna run all custom fuel management anyway, and what they did is gonna work great for their advertised HP levels and probably beyond.

With their 1:1 regulation, injectors, and a MAP based piggyback tune... the car should have a very solid tune to it. This is where I feel the APS kit starts to kick in and be worth its money.

Turbos, manifolds, piping, intercooler... bah... it may be more well thought out but its not gonna make more power than the greddy cars... but what it IS gonna do is take a 350z to HP levels that most greddy guys will blow up their engines with bad tuning trying to achieve.

Its my **unproven** opinion that the HP potential of the greddy system to be slightly higher... i have yet to see any 350z make the same HP at 9 psi as my greddy car... but I had to do a lot of my own engineering and tuning to get it there.

greddy gives you turbos. APS gives you turbos and a lot more. Give me a greddy car and the extra 2 grand for the APS kit and ill make the same power... but thats only after hands on experience and knowledge that the average consumer does not yield... and time could have been saved by just using the APS kit to begin with. you WILL SPEND at least the $2000 difference to get a Greddy kit up to par with an APS kit (safe to run 9psi)... if you think not... than I will be looking out for your post "another one bites the dust".

APS is a set it and forget it... its gonna take you to where most owners should not have a faster car cause they potentially have a family or something... but for those of us with the massive bug for major HP... you will not be content with either system. you will continue to look for more and end up replacing so much more that it really doesnt matter which one you begun with.

APS is the better kit... but for those of you like me... all the things that make the APS kit special over the greddy would have been long gone.

If your goal is to make power on a stock engine, not use a standalone engine management, and make somewhere in the 400's HP with your best shot at reliability... there is no question, you get the ****in APS kit. If your looking for 600+hp, you have much better questions to ask then to worry about which kit you should start with.

on another note, maybe i should ask my friends/customers to post links to my shop since if i do it myself i would get banned for not being a sponsor

-Charles

 

good write up .

 

And thanx for adding in phunk.

 

APS says their kit can produce 600 flywheel HP and when the APS tall-boy plenum is released there will be a 900hp fuel system upgrade with dual injectors.

Would you still need standalone engine management with that fuel system upgrade?

 

probably not according to APS.

Personally, the idea of 900hp without complete control of my engine doesnt appeal to me... but to most, the control is exactly what they DONT need (even if they dont realize that)... so it might be the perfect solution for many.

I trust that APS engineering will make it so that it works as prescribed.

 

can't wait till they add the PE kit to that for the 3 way comparison.

 

can you use the Fuel timing conterol unit and injector harness from the APS on the Greddy turbo kit kinda like mixmatch certain things if i wanted too

 

I doubt it and even if you could APS would not sell the "Fuel timing conterol unit and injector harness" seperately.

 

stick with the Emanage on the greddy. it's easier to tune since getting the unichip tuning software can be kinda difficult, if you don't know the right people.

 

Good point phunk I personally believe a well tuned greddy will put down just as much if not more power than the aps psi to psi for more info on charles car and more visit @
www.cj-motorsports.com

 

Does anyone have pics of the turbo downpipes that APS used. I'd like to see if the waste gas from the integral wastegate was routed in a seperate pipe and then gradually merged...

Kind of like this....

 

They do not have divorced wastegates

 

they have some good pics on their site www.aps.com

 

Yes I know they do not have divorced wastegates and the piping I linked to is for a turbo that has an internal wastegate as well. You can still seperate the flow from an intergral wastegate by doing what the fabricators of thge pipes I linked did.

Here:

This is the outlet of turbo for the piping I linked to



Here is the pic of the piping again... See how it seperates the wastegase flow from the exhaust gas flow.


This helps alot in keeping the temp down in that area and ensuring good steady flow from the trubo. If they are discharged in the same area it can disrupt the airflow when the wastegate opens. Here is a link to the whole article from SCC...

http://www.sportcompactcarweb.com/pr...0409scc_focus/