I know this todd. Nothing was directed your way on my post i'm just trying to see if people know the right from the wrong. Also Todd you should know that open scroll is better for power unless your running a very big a/r. Hmmm makes me think maybe thats why Tial housings on a 42r are doing better than a basic 42r with the twin scroll....

 

This is a Time Attack, maybe some W2W road racing later on, car and I want a broad powerband, not worried or care about big numbers on the top end where I will spend little time. It will make plenty of WHP up on top for my needs but will also have a lot of grunt coming out of the corners, less shifting so I can keep the car balanced better into and out of the turns, etc......

If for any reason I do not like the twin scroll it is quite easy to modify things and go with a different turbo that would take little if any mods to make fit.

In all honesty I will probably have more WHP than I really need.

Rick

 

I like that saying....lol

 

YEP, to much power can happen though few seem to understand what that means.

A properly setup car is about balance, in all things, just like how life works best, when in balance.

A balance of handling, brakes, power, feedback, reliability, etc..........

Even drag racers, the real ones, understand balance, just the right setup to get the traction, not to much, not to little, so the car will launch properly and be stable down the track.

Over the years I have beaten many cars that cost 2-3 times as much as what I was running because I looked at every aspect, understood what I needed to accomplish and took the time to make each part do the best it could. Those with bigger wallets tended to just throw on whatever new bit came along and expected to be fast, some of that was marketing hype, some just plain ignorance of what true performance is about, balance;)

Rick

 

^^Amen to that.

 

LMFAO

 

bump for turbo specs....

 

Rick-

I have some questions regarding your wg placement. I do not want to come off the wrong way as I am always curious as to what others are "thinking".

If your ok with questions, let me know and I will post(others might learn some more as well) or otherwise if not I can shoot you a PM.

Not to get off topic...

Regards-

Todd

 

I do appreciate asking first, very cool of you

After reading this if you have more questions fire away, I am hardly the expert on any of this and have gone down a few wrong roads in my life, not ashamed to admit it.

---------------------------
The WG gets input from both sides of the split (twin scroll) manifold.

Why one WG? Less cost, less weight, less bling if really not needed. Since it is not open at initial boost ramp up then the hot exhaust flow is going to follow the path of least resistance, some of which may blow back and forth through the port.

Once the wheel starts spinning I imagine it won't be a real issue.

It may have a bit more very low end lag than a dual WG setup, not hard to see that happening.

With a 2.4 engine and a BB turbo, road race car, I am not to worried about a bit more lag than I might have with a dual WG setup.

I did think about splitting the output pipe and welding in a divider all the way to the valve, which I may still do once I see how it reacts.

I can also switch to a single scroll turbo quite easily as well, either honing out or just slimming down, etc the divider in the collector.

I did a bit of looking into this before going with this setup and found nothing saying it was a bad idea, was told it should be just fine, etc, by those that should know.

AND, I just wanted to try it to see what happens

Now go ahead and say whatever you want buddy, no worries, if I am wrong then I am wrong
Rick

 

i was just doing a search to see how the car was coming along since i didn't post for a little while here. looks a lot better than the matrix.

 

I think this turned out pretty decent for my first turbo build



Besides a magazine car they could not keep in the US and they blew it up, this was the first publicly sold Matrix with a Turbo. It was bought the first day, in the AM they sold the Matrix car and the next day it was under the knife for a turbo build, amongst other things;)

Unfortunately I sold the car right before a scheduled photo shoot for a major publication to help a "buddy" that was seriously injured. You know how things can go. the car, major money, etc, later he screwed me over but life goes on, get up and start again (I am so damn glad I turned out to be a glass half full type, life would suck if the other way around!)

Rick

 

Are you rick from RAAMmat?

 

yes

 

oh man - this shows how long ive been on this forum. I haven't seen a post from rick in years (not to say he hasnt posted but I havent seen any posts). I remember when I bought my car and gutted it out to put 40lbs of matting that rick sold me.

Anyway - good job on the build rick. things look nice.

 

Thanks, I took a break from the tC for a couple of years, great to be playing with it again

I have everything finished except theIC mounting and piping, which is pretty easy on the layout I decided to go with, short piping to boot, just not quite as short as Ptuning's race car though.

I will post more pics when I get a chance to clean it all up, etc....

Rick

 

My question has to do with your wg positioning....

but after what you posted you know you are in for a learning curve etc.

If your wanting any input though....

it would be a hard change but you will want to change how the wg is mounted. you need to almost build a separate collector for the wg. (Bring in each side of the collector out then into one where the wg flange would mount) The two sides need to be seperated for a longer period when using one wg(when trying to take advantage of a divided setup). Hope that makes sense.

In any application other than high hp ones(boost control), running a single wg in a divided setup makes allot more sense than duals.

Where duals come into play is the "cost" factor...

1. costs of wg's...2 38's costs as much as a single 44.
2. making 2 seperate wg mounting positions takes allot less time to weld than a single placement welded correctly.

Anyways...good luck and look forward to more updates.

I wish their where more guys like you and hopefully you have inspired a few of them.

Regards-

Todd

 

looks sweet!!

 

Thanks Todd, I appreciate your time and advice

When I was building it I was going to split the WG pipe and put a divider in it, it got late, I was tired, forgot all about it.

Let me know how you like that idea as I can still do it now, not really a huge amount of effort, couple of hours at the most.

I could make it go into the Vband mounts, right up close to the valve.

--------

Thanks Jsingh for the nice comment

Rick

 

Good idea....

eventually though the 2 ports need to come together before the valve(flange) but you want to split them for as long as you can. 1 1/2 to 2 inches if you have room.

As you have it mounted now the 2 sides of the collector are open to each other (in the wg elbow) thus creating a similar effect as a standard open collector. Thus defeating the whole purpose of the divided setup.

You know what you are doing

Regards-

Todd

 

or just make it dual with the new 38mm v-bands which are compact for projects just like this hmmm. Looks sweet still oh yea... Bump for turbo specs....