Turboing a 2v

[Tbuck07]

So..how hard is it? I know if you build your own kit, and can do your own piping (which I have a guy who does fab turbo kits)..I know you can do a turbo build for about a grand.

If I were to do a 99-04 Mustang GT, are the gains worth it? How much am I looking at...about a thousand? How much boost can a stock PI block take?

 

[vermilion]

its all in the tune as to what it will take.

 

[Dairy King]

But there has to be a rough figure. Like Ive always heard a 302 can take roughly 500hp.

 

[Tbuck07]

Part of me just wants to buy a hideous foxbody and turbo that...cheaper..but ugh.

 

[switch96]

I always have this thought in the back of my mind to sell the Cobe, buy a '94 GT and Kenne Bell it.

 

[dafizuck]

Part of me just wants to buy a hideous foxbody and turbo that...cheaper..but ugh.

94-95s have a 5.0 too...

 

[Tbuck07]

Yeah I know..blahhhhhhhhhhhhhhhhhhhhhhhhh. I dont know. Now Im looking at kits, and on 3 has a kit for 1700..but you have to basically spend another grand in parts not included..so its like 3k to turbo with a kit, without install.

 

[Pennywise2]

In my experience building and constructing (peicing together) turbo kits can
be difficult and you will experience what trail and error is all about depending
on what vehicle you are working on.It does take a good amount of mechanical
know-how.Sometimes it requires cutting of fenders or body panels to achieve
proper fitment.Also grinding on parts or body and exhaust parts may have to be modified too.
I highly subjest getting a complete turbo kit and not peicing together your kit.
Turbos make more heat than superchargers and they are alot harder to tune.
I honestly would say with a pi engine the horsepower and torque gains would
be well worth the time and money spent.I would not recommend maxing out
the stock shortblock.If you want reliability/dependability and your stock shortblock
to last I would limit boost to eight psi. until you install a forged shortblock in your
mustang.I would look into the HP performance and Hellion turbo kits but remember
that turbocharging any vehicle does not come cheap.I'd research and ask around
what turbo kits have the best fitment before you consider purchasing any turbo kit.

 

[mineralgrayonspray]

some web sites say 6.5 lbs with the right fuel is safe for about 410whp

 

[Tbuck07]

Im looking at a kit from On 3 motorsports..They specialize in a kit for the 4.6. At 5 lbs of boost the numbers are at 330 horse, 375 ft lbs of torque at the rear wheels. I've researched, and I wouldnt run boost anymore than 8 lbs. They say at 10 lbs, your motor hits 440 whp and 496 ft lbs. Pretty impressive. The kit is 1700 bucks, has all the tubing bent, the turbo, intercooler, etc. I need little things here and there, but can pick them up as I go..Im still looking into it. I would probably run 6-7 lbs of boost. Ive never owned a car with more than 300 whp..haha, so Itd take some gettin' used to.

 

[justinschmidt1]

Im looking at a kit from On 3 motorsports..They specialize in a kit for the 4.6. At 5 lbs of boost the numbers are at 330 horse, 375 ft lbs of torque at the rear wheels. I've researched, and I wouldnt run boost anymore than 8 lbs. They say at 10 lbs, your motor hits 440 whp and 496 ft lbs. Pretty impressive. The kit is 1700 bucks, has all the tubing bent, the turbo, intercooler, etc. I need little things here and there, but can pick them up as I go..Im still looking into it. I would probably run 6-7 lbs of boost. Ive never owned a car with more than 300 whp..haha, so Itd take some gettin' used to.

Do some more research dude...1700 bucks is the base, you will want to upgrade to the better turbo which will put you at 2k for the kit and you still will need injectors, fuel pump, spark plugs, MAF, and a sct tuner with a custom tune which will easily cost you another 1k, not to mention the fact that you will need to run a tubular k member and I thought you had to run tubular a arms and coil overs up front for it to fit.

So that "1700" kit jumps to something like 4k real quick.

Another thing you might want to know is that kit is made with weak metal and people have had it crack already.

At this point I wouldnt even bother turboing a 4.6 mustang unless you have like 6k to spend.

Just go with a vortech kit, cheap, easy, effective...on 8-9 psi with the cams and shit in your sig you could probably pull 400 rwhp.

For whatever reason it seems like the turbo 4.6 cars are blowing more often than the supercharged ones even though the blown cars are running more boost.

I would bet the tune is a lot more accurate with a blower car than a turbo car.

 

[lordgufi]

the on3 turbo kit uses 304 steel and will i repeat WILL fall apart after a while unless they are properly welding the metals together. 312 SS is more brittle but will last if properly done. then there is Mild steel which will rust unless coated.

These kits are a rough deal because your dealing with pipes and metals going in places that weren't designed to go there.

Problems ive found with most OTC (over the counter ) turbo kits for the SN95 4.6 is that most lack bracing or flex joints.

The metal Really has to be able to take a beating. the exhaust trapped between the heads and turbo are WELL enough to melt metals that are poorly merged or even made.

I have not seen any one with the 4.6 kit have more than 100 miles on the kit and be able to say anything about it yet.

Many of the 5.0 guys that have bought their kits have had the reverse facing headers break at the head flanges.

It may be a good kit or it may not. IMO... if its sold on ebay. its not worth buying.

if you want a good kit thats going to last and have a company that will back it up, go with hellion

 

[justinschmidt1]

lol...well you pretty much just repeated what I said, just a lot longer.

Basically, that cheap kit WILL fall apart, avoid it.

 

[Tbuck07]

Jesus..

UGHH.

 

[dafizuck]

why dont you supercharge your car... Im not understanding the need for all these drastic changes you want to make.

 

[AaRoN]

There was a company called Spyder Turbo Systems (or something like that) that made a kit for the 4.6 SOHC. They made somewhere around 350-370rwhp on an NPI with minimal mods. There's actually a thread on here somewhere about it.

 

[Tbuck07]

Guys Im not doing anything to my current car..I'm buying a newer GT..

Wheres the proof that this kit is crap? I've talked to numerous people who have had the kit on their car for thousands of miles..abused miles, and have had no issues with great power gains.

I want to turbo my newer car, and this kit is 3500, legit. Everything, including tune.

Superchargers are 5-6,000 new, probably more with tune. Turbos make more torque, and are more efficient, IMO.

After riding in a supercharged car and a turboed car, Im definantly sold on a turbo car.

 

[lordgufi]

i'll find more on the 5.0 kits when i get home. i know for a fact that those kits fall apart. the 4.6 sohc kits i haveyet to see any one say YAY or NAY about them. I just know from past experience tat the 302 stainless steel will not takethe heat a turbo systemcan produce. i have seen CAST manifolds glowing white that are near boiling the metal and 302 stainless WILL NOT withstand that type of heat with out proper mounting points to keep the weight of the kit/turbo from bending the pipes or straight up falling off the car.

 

[chaz]

Turbos make more torque, and are more efficient, IMO.

After riding in a supercharged car and a turboed car, Im definantly sold on a turbo car.

+1 ccasion14:

 

[Tbuck07]

I wish I could see proof of what youre talking about. I talked to Chad, the owner, and has no idea of any of these stories you guys speak of.
Plus, he said he'll stand by his product. He has warranties on the parts, and has had his car, the original turbo kit for almost two years, and hasnt had any issues.