502502

(for all that are not members of TDR)

Little update here:

I got the cast factory elbow from Dave @ dieselpowerproducts for $20, and the dowpipe from my parts dept for $60 or so...

in to the install:
1) Removed the old exhaust from the cast elbow back, removeed cast 03 elbow and, not too bad, reuseable clamp was a bit stuck, but came off
2) Went to install 05 cast elbow, but had to grind off the lower "locating pin" on the elbow, the one that i guess makes sure the elbow is degree'ed correct
3) install re-useable clamp between cast elbow and turbo

4) cast elbow is all on and secured, on to the downpipe, slid the downpipe up into place and "tried" to fit the hanger in the stock position, NO GO, hanger is off by 1/2 inch, I had to remove red rubber plug to get a flush fit of flange to cast elbow...

At this time all seems ok, (except the ill-fitting hanger), BUT as I am installing the clamp to secure the downpipe I find that it is too small - they ordered me a clamp for a 3.5inch flanged pipe... I need of course the 4inch flange clamp !
After I get that clamp, all should be good

BY THE WAY, to limp to work I used the old clamp and a coat hanger to hold the new downpipe on, and I drove to work with just the downpipe -- , Like a darn school bus (fooled a few kids, )

BUT, egts would not even touch 1000 on a 90mph run on TSTlvl 6/5 with that (of course this was only a 3 foot long exhaust system, )

Parts list -
4.5-05 cast elbow - $20 from ??
Correct clamp - 52121285aa
Dowpipe - 52121600aa

So now I have a full 4inch start of an exhaust system, and the egts are looking to be worth it

I will post an update of egts with full pipe on, cya

nickleinonen

cool... so that means a 04.5 exhaust brake will work if an 04.5 downpipe is used on pre 04.5 models... nice..

Breakin Loose

Any update on the system?

502502

well, I would like to say that it helped EGT, but I don't have hard facts to back it up....

I can say thought I dyno'ed this weekend and I did:

Stock - 196hp 381torq
TST level 6-5 --- 318HP , 746torq

And i had the egt limiter on 1400* - and never hit it, so maybe the downpipe helped, I know it didn't hurt

cquestad

Tomeygun,

What dyno where you on? When I did my truck stock fueling w/ intake and exhaust on a load Mustang Dyno...it pulled 200/400. You must have to be on a Dynojet or another inertia based dyno to pull down those 260+ stock HP numbers.

But...either way...it all serves as a reference point anyways.

502502

yes, it was a DYNOJET, but i never said i pulled down 260+ stock hp

I only had 196hp for stock, tst off
With tst on, 122hp gain

cquestad

I was saying others claim the 260 numbers all the time. I was just pondering the differences. It is amazing that you can more than double the hp on these engines and maintain drivability. I bet you are fuel and egt limited at 122 gain. A turbo and a pusher pump should get you up to +200hp gain.

Your clutch will hate that though...

502502

FWIW:

A guy that had a truck just like mine - SO, 5-spd... He had the guts to turn the tst on 9-9, and he pulled 395hp with no turbo and no pusher pump

I bet that i could pull the same number , at least I hope, I will try next dyno day

PS- I'm all good in the clutch area, con ofe w/ 13inch conversion went in about 6 months ago, all is good

cquestad

Now that I see you have a SO...then my thoughts stand true. My HO only did 200/400 on a Mustand Load Dyno. I have seen posts of other people's HO's posting around 265/500 on a Dynojet Inertia Dyno. Nvermind...sorry for high jacking the thread.

cquestad

And...what does it matter if you can spike a dyno for a second to put down those kind of numbers? There is no way that combo is driveable and there is no telling how long till engine/turbo/lift pump grenades. Just thinking outloud.

502502

As far as the the Mustang (load) dyno VS. the Dynojet (Inertia) Dyno.... I have no idea, that is why I baselined on the same day though

And the spike tells me alot - in fact, on a non-load type dyno, can you ever have a flat torq curve??? I mean after the first jolt, the wheel is already moving, not like a load dyno where you can build and hold boost, again, I am not fimilair with the dyno and thier differences

BUT, i can tell you my truck as drivable as stock, and I have no early indications of the engine/turbo/lift pump grenading, as least i hope not

PS - i think i have alot more headroom for HP then people with HO's, because of course we have the same fuel system (and turbo), but i make so less HP

cquestad

Really...you can pull a big load (10k or so) over 12,000 foot pass with your set at 6-5? Fast?

Maybe just our difference in opinion on what is drivable???

If you had a fuel pressure gauge, you would probably see almost a vacume.

I not trying to be arguementative, but 318 hp is 318 horsepower. HO or SO.
Stock turbo/intake/etc maybe cools 318 hp ok down low, but it does not up here.

That is all I mean...

These trucks sure are fun...we will agree on that I am sure.

502502

I have not tried, so i have no answer, but on my daily routine, i have no drivalbility issues
I agree, of course as a point of reference, I think my 10.20 challenger is streetable (i do "drive" it on the street, that counts right?)
I have no idea about what HP is hard to control at what elevation, nor about the fuel pressure - i have no dips in my dyno graph, so I think the fuel pressure may not be an issue yet... again, without the guage i have no idea except that the trucks runs pretty good

and about these trucks being fun, right on, i have more fun with this truck then my challenger - because nothing ever breaks and the money is quite a bit less for the fun