Feel the difference - 3" SS SuperSplit DP & 3"/2.5" SS TP

Vuk at AMS finally got his first batch of shipment of his new SS 3" SuperSplit DP's and 3" to 2.5" TP's. Last Saturday we got to installing them.


New DP's;





New TP's;





Old 2.5" DP's with new DP's;





Old and new TP's;






All of the old and new;





Vuk and Kevin after removal of old TP's and removing the old DP's;




Old DP's being removed;




New DP's being installed;





New DP installed. Driver's side (RHD). This was one of the design concerns as far as clearance issues with the steering shaft and the bulkhead. Happy to say there are no clearance issues of concern for the RHD community.






Passenger Side (left Side)DP;





DP's Installed and TP's attached to DP's;






TP's with resonators. 3" prior to resonator, then 2.5" til the flange. All the welds are top drawer for all perspectives.



Perfect fit of the TP hanger arms;





Built-in resonator - top quality welds everywhere;




Install complete;




Short term feedback;
The 100 mile drive home was a good chance to see how these perform. I do feel the spool start sooner than before. But what's really noticeable is the linear pull I have now. Before it was kind of a BANG - Holy shit hold on. Now it's kind of HOOOOOOLLLLLLLYYYYYYY SMOKE and it doesn't quit. Of course to get the real evidence one has to get it dyno'd. And that is planned for and hopefully soon.
Sound difference? - I can't really say there's any appreciable change to the exhaust note. Which for me is a good thing. I think by removing the cat out of the equation, the flow is obviously better which also translated to how the throttle response felt. It felt smoother and easier, if that makes any sense at all. But that's what the 2 hour drive home after felt like.

Vuk and AMS seem to have come up with a top drawer piece of engineering. And I suspect the dyno numbers will reflect the hands-on experienced difference, which should be truly impressive.

 

Is that so?

 

^^ giggles

 

Looks like they breed them soft up in Canada



Pansy gloves... :lame:

Dumps look nice and shinny :thumbup:



Stop wingeing Steve, there is only a couple of different ways of making some pipe off a turbo connect to another pipe when you are restricted by space.

 

They look good. I'd love to see them compared to my Specialty Z Expansion 3" Dumps

 

So all the was replaced was the dumps? Be interesting to see the difference and hopefull ynot just a "seat of the pants" dyno increase.

Should have dynoed before install then straight after Cause I'm honestly not sure how much improvement you'd see in that area for such a large outlay of money. As in replacing stock yeah, but replacing aftermarket with other aftermarket??? $ for $ I'm just not so sure.

 

haha dude how much proof do you need. its been tested again and again over in the US.. search twinturbo.net !!!! the proof is allready there

 

Thanks for that.
I don't think he read it in it's entirity, else he wouldn't have asked.

 

Rofl. Normally I'd agree with that kind of analogy, but, this is a case in which it doesn't apply. If you don't know why, then I'm not gonna be able to explain it to you in a way that you will comprehend...

Lol.

 

so now u have 3inch dump pipes and twin 3inch exhausts
so each turbo has its own full 3inch exhaust from dump pipe back ?

what turbos do you have stock ?

 

he has the Z1 GT675RS (disco potatoes)

 

I think you missed a few key things.

3" Dump Pipes
3" to 2.5" Test Pipes (step down occurs right at the end of the resonator and just before the flange)
Catback is 2.5"
Turbo's = Z1 GT675's on MSP Manifolds

The step down from 3" to 2.5" satisfies to aims;
1. Helps to maintain exhaust flow (speed) which is good performance-wise.
2. Suits a broader base of 2.5" catback users.

 

step down is supposivly good for most road cars, big Hp applications use all through 3"........is it legal to drive in canada with no cats, or does the snow take care of that

i want to know what steve is trying to imply, but isnt the split at the dumps kind of useless.....in theory its better(just like communism) but if im not wrong UNIQUEZED found that the normal bell mouth gave more out(i think this was put against his dyno graphs of r33 etc).....

 

Nice system

you have their mate! Plenty here would like it, including the bedwetting semi trained giggling pea brains, who seem intent on sniping you, for who knows what reason.
Stock turbos WTF.

 

dont think there stockers. dumps pictured are 5 bolt !

 

very nice, and similar setup to what i'm building
except mine won't be contracting to 2.5"

 

yeah a lot of people would like to see dyno graphs of the bell mouth design outflowing the split design we're still waiting on the splits tho from the GB so that they can do a back to back dyno

 

I have a way with dealing with my bi-annual emmissions tests

I'm not sure about the dynamics, only to say that Greg Dupree amassed some great dyno readings with the 3" dumps - even with oem turbo's.

Thanks for that. This is really quite tame in comparison to the flames recieved on tt.net for making the exact same post. You missed some great drama there yesterday. So great, they removed the whole thread and everyone's posts. Their protection of their vendors integrity have remained intact ....LOL. Never speak ill of them when you're there.

I believe I've already posted some time ago my dyno readings based on my set-up prior to this mod. The numbers are in my sig.
I'm hoping to do another dyno soon just to verify (and justify) the improvement and money spent.

 

ZDUCTIV was not making fun of

jschrauwen. More having a go at AMS... and their "engineering". Have a search of TT.net for the full story, lots and lots of posts about it.

Or PM me for a brief run down, posting it here would most likely only cause problems.