My new bits

[tidy protege]

got some nice looking goodies there rob, if your cruising up to the jamobree you can cruise up with your fellow NSW members if you want.

[boostedbatman]

Originally Posted by ROB-80E

Took it for a spin last night and Whoa! You can notice that lsd. Putting the power down out of roundabouts and exiting in the same lane in which you entered in awesome! :lol: I still have to set up the AVCR propperly, but yeah, have to let everything settle in before i go giving it too much....and the fact that I'm using a **** CV means i have to go easy until I get my custom one.

Just wait till you get the chance to really give the 90 degree turns a good shot, thats my favourite part,...Hard left--->Hard right WOOHOO

[ROB-80E]

Yeah I haven't done any hard corners, but the ones i have done are heaps good.


Just to make some of you or maybe even a little more....this arrived today

[Rupewrecht]

that looks like a lettuce chopper to me

[ROB-80E]

Just some progress pics for ya's of my latest mods. Please take note of the word PROGRESS...things are not cleaned polished or final stage complete in any way.


I have a feeling this baby won't have any problems flowing.






Can't be bothered doing much more die grinding here...I don't think the little knobs are gunna restrict this one!




This is the 3" to 2" intake for the turbo. Due to an engine mount...wasn't able to fit much more in there.




Here's the upgrade. VF10 v's VJ23.




I've also painted another cam cover. I got over the blue as there was no other blue on the car....so I've gone with a shade of red.

[323_mazdabator]

hey rob i have heard your running the new turbo at jamboree, what the reason for getting rid of the vf10? is it buggered of you just want something bigger? if your interested in getting rid of the vf10 how much would you bee looking at for it?

[twilightprotege]

one question. since it's a custom (hand) job, just wondering why you have the wastegate "pipe" merging straight into the dump pipe? i assume it was a space issue, but there's heaps of power to be gained by having the wastegate gases not merging back into the system until a lot further down. this is why CES make the most power from their systems (for the 200sx for eg) compared to every other system available.

[chicaboo]

Do CES basically design their's to merge before the flange ahead of the cat?

[twilightprotege]

essentially yeah. depends on the car model

[chicaboo]

I remember seeing a design like that for a Subaru (I think?) at Mercury.

[twilightprotege]

tis a pic of the wrx dump pipe :



200sx :

[ROB-80E]

Originally Posted by 323_mazdabator

hey rob i have heard your running the new turbo at jamboree, what the reason for getting rid of the vf10? is it buggered of you just want something bigger? if your interested in getting rid of the vf10 how much would you bee looking at for it?

Just wanted bigger mate. :evil: hehehe. As for the VF10, it's fine, but, you'd be about 13th in line to get it off me. I've had so many people ask me if they can buy it when I upgraded. Well, the first person that asked me still wants it, so it's already sold sorry dude.

Originally Posted by twilightprotege

one question. since it's a custom (hand) job, just wondering why you have the wastegate "pipe" merging straight into the dump pipe? i assume it was a space issue, but there's heaps of power to be gained by having the wastegate gases not merging back into the system until a lot further down.

I spoke to many people about this. I did originally want a split gate system like this one pictured below due to the flange system I already had in place.


All the people I spoke to who have been doing performance work had all said that the gains are minimal. Due to time and effort, and the shape of the flange, this was the best way at the time and as I said, no one difinitively said that there's alot to gain from doing it this way.

My whole system now from the turbo through to the end of the car is now 3" with the cat as the only restiction (staight through resinator and muffler used). If there is going to be any turbulance thus restiction created by the merge at the dump pipe, due to the flow charactoristics of the rest of the system, I'm sure it will be minimal anyway.

I'm more than open for discussion on this.

[twilightprotege]

i think the reason CES was having so much success is that when it's right at the top like yours it creates a swirl effect when the wastegate is shut and i think that's where they are getting the most power out of the system.

i guess that's why external wastegate systems are the way to go. no need to worry about that swirl or anything (just vent the gas into the air! hehehe)

[Dogo]

i agree if the pipes were smaller then it might be worth considering, but 3" is huge for these engines already.

[ROB-80E]

I would have thought that the swirl/turbulance is created when the wastegate is open. After all max power would be when boost is being maintained so the gate would be open. Otherwise it wouldn't effect the power or only effect off boost power.

[twilightprotege]

the worst part is when the wastegate is closed because there's that open area right there and the gases want to go into the open areas and that's where the swirl happens. so essentially you have gases going in a circle motion back up towards the WG. with the WG opens, then there is turbulance, but since the gases are all traveling in the same direction it's not as bad

the idea of the long WG pipe is to get up to max boost asap which is obviously best for the power curve.

well that's my understanding of it anyway

[ROB-80E]

Ok, I'm going to use baby pics of yours truely to give you an idea of how the process has gone. I think they do a good enough descriptive job

This was me fitting the turbo. Note, this is not a straight bolt on turbo for a gtx motor! :x


This was me when I saw all the pipework and everything fitted up.


This is me driving the car on 10psi (no boost controller) UNTUNED!




I'd love to post a pre-emptive pic of me once the car is tuned, but thankfully my parents didn't get any pics of me soiling myself. ops:

[goldsp]

hahaha i love the pics , they real show the emotion involved in this process. top stuff rob. are you going on the dyno at nas ?

[goldsp]

oh and spotted your blue beast at cardiff computers on tuesday. it looks sweet

[ROB-80E]

Nah I dont get it tuned till tomorrow morning, so i'll miss out.


ehehe Cheers dude. yeah I've been driving that while the astina has been off the road.