Turbo Kit Preparation

[BigBlueWienke]

ok, so I'm gonna get the turbo kit when it becomes available (assuming money is available)
what can I do now that would make the turbo kit even better?

exhaust, Headers, SVT Upper/Lower/TB/MA/19# injectors etc...
but what about the Y-pipe, would changing that do much for me? or is that replaced turing turbo installation anyway?

[pgtatx]

Why not do some head work??
Transmission: lsd, bulldog box, clutch, flywheel
Bottom end: Pistons, rods, rings, etc
Suspension: Struts, springs, sway or strut bars
Brakes: big brake kit or crossdrilled/slotted rotors, pads, calipers

Always remember...if you can make the power, you need to handle it. Never neglect the engine, transmission, and suspension if you plan on some nice hp numbers.

If you have a return fuel system, you may be able to add an adjustible fuel pressure regulator (FPR), or a rising rate model aka an FMU...those will always help. Also get some gauges. An EGT (exhaust gas temperature) gauge will be the best for knowing if you are running rich or lean. Then get a boost/vacuum gauge, and even a engine oil temp gauge or something else to see how the engine is doing. install of that, then the turbo, and yopu'll have an amazing car...and no money.

Good luck...\

best thing I can tell you....if you cut corners, or leave things out...say bye bye to your car...and even your life. I've seen it happen before...and I hate to see it happen again...

[mcon99]

I do not think the MSDS headers will stand up in a Turbo setup and are not rated for it. I would stick with stock exhaust manifold, but gut the precats. Then attach a standard or custom exhaust with a hi-flo cat and your choice of high-flo muffler with at least 2.25" pipe (bigger is better for turbo)

I would get the SVT TB/UIM, a larger MAF, and probably an Apexi-SAFC

19 lbs injectors wouldn't hurt either.

then i think the turbo will fall into place...

[pgtatx]

If you get a custom exhaust for your car go for a 3" mandrel bent setup...will make a big difference in power...but don't put a 3" exhaust on a NA car.

[piyo319]

Hehe, then I would think 2.5 would be good? 2.5 on the NA Cougar is alright, and I'm sure it can't be THAT bad on the Turbo Exhaust, if worse comes to worse, when yer all done doing up yer car and its at where you want it to be, redo the piping, but I think 2.5 would be alright.

[mcon99]

well put it this way, YabbermanX with his custom turbo setup running at 5psi uses the stock exhaust, I believe

so 2.5" should be alright unless you have huge boost

[PuckPuck]

I want to run 25psi of boost... what do i need to do?







<j/k>

[LaserRedCougarV6]

I don't know much about the inner workings of a car, but why would a 3" exhaust setup on a stock Cougar hurt it? I have 3" pipes and I've had everything checked over by the dealership here and they said it's just fine and won't hurt a thing.

[exigent]

No... it wont hurt a thing... but you are killing your bottom and mid range performance. Bigger is not always better. You want the velocity of the exhaust to suck the next exhaust pulse out. As size of pipe increases velocity of air traveling through (assuming same volume) decreases. Think of it like.... you drink through a straw... normal size.... now it doesnt take much to suck the fliid up to your mouth right? Now find a tube or somthing about 2" wide and try to suck the fluid up.... WOOPS... ya cant. Very generalized but it should get you the idea... the bigger exaust makes it HARDER for the engine to breath after a certain point. There are calculations to arrive at the perfect pipe dia.... check a post i made a few months ago... i think it was called Borla how big is too big or somthing... i couldnt find it offhand. I worked the numbers in that thread.... basicly... a stock coug is perfect at 2" or so. found the thread.... here PIPE SIZE CALCS (http://www.fastcougar.com/forums/arcmessageview.cfm?catid=10&threadid=16748&highlight_key=y&keyword1=borla&keyword2=diameter) Basicly... to justify 3" pipe you would need a STAGERING cfm value... hell... to justify 2.5" pipe you need a staggering cfm value. Assuming 100% volumetric efficency (im being nice here... ) A 2.5L engine is capable of sucking down 309cfm at 7000rpm. SO... at that rate... with 3" exhaust... your exhaust gas velocity will be about 104ft/second.... compare that to a yodude at 137ft/sec with 2.5" pipe... and then a borla at 2" pipe at 213ft/sec. Exhaust comming out of your pipe is travleing HALF as fast as out of mine.... THAT is the diffrence.


On the other hand... a turbo car needs a larger pipe.... this is all N/a talk.

[LaserRedCougarV6]

I don't know how they did it, but I know my car has more power not only in higher rpms, but in lower as well. I'm positive he knew what he was doing with the exhaust being as it was assembled and installed by a guy that usually only works with Nascar cars. Like I mentioned above though I don't know much about engines. Do you think he could have found a different way to allow back pressure with the 3" pipes?

[qstorm]

you should also invest in a turbo timer, and maybe a fuel pump upgrade, seeing how our pumps suck. improve your spark plugs and wires, and i would say use a 2.5 in. exhaust. and buy some of my custom control arms.;) to stop some of that wheel hop. have your injecters re-maped and blueprinted to match your spec's . that and the stuff they said you'll be a happy camper.