The difference is basically $50. Bang for the buck, which is the better setup? This will be going on a 2.93/4# lower or 2.76/2# lower. Haven't completely decided on the pulley set up.
Stage IV +ported plenum/tb vs. Stage V
- Thread starter TrickStang37
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When my tires get here, been waiting a month on backorder 
, we will have some damn track numbers. :lol:
but I think it's do what you want, they're both badass, I did only stg V + supporting mods(at once) and it was a HUGE seat of the pants kick. I also picked up 68rwhp and 35rwtq on the dyno so i can't complain about that either.
Now i just need to get to the track!
My brakes showed up at least, it eased my pain a little... just a little though.
, we will have some damn track numbers. :lol:but I think it's do what you want, they're both badass, I did only stg V + supporting mods(at once) and it was a HUGE seat of the pants kick. I also picked up 68rwhp and 35rwtq on the dyno so i can't complain about that either.
Now i just need to get to the track!
My brakes showed up at least, it eased my pain a little... just a little though.
If you already have a port job then, I would say it ain't worth it, but if you don't why not get a stage 5. The only thing is your probaly going to need injectors and fuel pumps anyways, not to make it sound cheap, but whats a couple grand more for a twin screw with all the benefits.
a couple grand i wont have for a couple more years. this is as far as i'm gonna take this motor and then begin to save for another longblock.
Find a used Kenne Bell or whipple for a little more. Everyone ends up going that route after a port it seems like. But out of the 2, I would get the Stage IV, seems more consistent. I've only seen a few Stage V's putting down more power but thats with a lot of other mods :shrug:
So far it seems the stage v really hasn't show anything impressive over the previous stages. For your pulley combo go with a 2.93/6lb or 2.76/4lb!
You are smart man, I would build a long block too first. I just fiqure your looking at a grand for fuel upgrades, another 1500 or so for port, so many people on here have said a twin screw is much more worth it. Atleat thats what I'm thinking.
$1500 for port? i have it priced pretty much at $800-$900. The fuel mod (BAP) i need regardless, my fuel pump duty cycle is maxed at 5000 rpm. its down to 96% by 6000-6200, but that isnt much room still. So the fuel mod/bap isnt necessarily part of this upgrade im planning. And i will most likely than not be fine with the stock injectors on a port.
If any of you guys find someone selling a whipple or kb for a little more than a port (say, $1200 - $1400) by all means, send them my way!!
IMO, I always like bigger so stage V. I think you have more room to grow. Why not get a used KB if you can.
too much $$ for me at this point. i can sell it afterward for ~$650 probably, which makes it about a $400 rental (stock blower ~$250). Either that, or I stay at this power level for about four years and then upgrade to a kb/whipple.
i know, most i've seen used go for ~$2500.
at this point i see it as $2500 ( + injectors) vs. $800-$900.
Do what you think is best man, I put down 503/502 on a mustang dyno w/ stgVport/2.8upper/exhaust/intake . No lower.
On a dynojet (at ~10%) I would have made around 553/552 on the same pull with same conditions...
I really want to put a 4# on just to see what numbers I can yank out of her...
On a dynojet (at ~10%) I would have made around 553/552 on the same pull with same conditions...
I really want to put a 4# on just to see what numbers I can yank out of her...
On the stgVport did you have any work done to your PL and did you add fuel mods?
dynobobstieg
New Member
There are difference's between the Stage 4 and 5 and 5+.
Stage 5 and 5+ IAT2s are lower than our stage 4, the RWHP and RWTQ is higher.
If you are not running a Lower pulley the Stage 5+ will show the TQ as if you had a 2# lower. We have done the testing: Our Cobra test car has started with no mods all the way up to Our newest stage 5+, Check it out.
We do have information on the Stage 4 and 5 and 5+ results.
http://www.websitetoolbox.com/tool/mb/dynobob
Stage 5 and 5+ IAT2s are lower than our stage 4, the RWHP and RWTQ is higher.
If you are not running a Lower pulley the Stage 5+ will show the TQ as if you had a 2# lower. We have done the testing: Our Cobra test car has started with no mods all the way up to Our newest stage 5+, Check it out.
We do have information on the Stage 4 and 5 and 5+ results.
http://www.websitetoolbox.com/tool/mb/dynobob
I got the Stg V w/ welded OEM TB/PL.
And I added KB BAP w/ wiring upgrade, MAFia, and 60# injs.
Some people may argue the Stg V isn't worth it etc. etc. but I can tell you, I want the most out of my setup without changing the blower, when it comes to that, stieg is the man to talk to.
And again, I did a dyno pull before port, and after port, with the only things being different of: Stg V port, 60# injs, MAFia and KB BAP (So the only go-fast mod is the port, all the rest is supporting mods).
The difference on my shootout tune was 68rwhp and 35 rwtq.
For UNDER a 1000 dollars, INCLUDING new gaskets AND Bob drilling out a few intercooler bolts that I broke off. The job was done 100% and i couldn't of asked for a better job, or service.
For all the mods you can do to your Cobra, and everyone is trying to maximize HP/TQ gains PER mod, I think it's a no-brainer. He has your blower anyway, he's doing the work anyway, you have to reinstall the blower ANYWAY, so why not chip in some extra $$$ and get it back with more kick?
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And for the people saying the "Stage IV is the end of the road" etc. etc. and "Stg V is the same numbers as IV" etc.
Well I've been here for awhile, and although my numbers are nothing crazy, I can't really recall seeing many people hitting 500+ to the wheels on a MD with no lower...
Well I've been here for awhile, and although my numbers are nothing crazy, I can't really recall seeing many people hitting 500+ to the wheels on a MD with no lower...
MustangThief take that thing to the track and lets see what she runs! That will answer a lot of questions for everyone. You should trap in the mid 120's to upper 120's with your power level.
Agreed, a twin screw is a whole another level financially. Easily $2K more than the port route.
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