Supercharging a stock 4.6L
 

I was wondering your guys inputs on supercharging a stock 4.6L with 90,000kms on it. It is a eaton m112 supercharger and The intake manifold and belt drive is from tork tech.

I would think you should be fine as long as you don't get crazy with the boost

Keep the boost down, and you will be good. Plenty of guys run a blower/supercharger of some sort without issues on a stock 4.6L.

Thanks guys.

^^ x 3 .. you'll be fine.

It's just broken in Man..LOL You will be fine !!!

Hey GT E UPP, how many klicks did you have on yours when you got Whippled? How many now? I want to get a 440 whipple or roush 470 kit once I'm paid up on the car and I dont seem to get to many answers as far as mileage goes. I'd still drive the car around 2000-5000 klicks per year.

GT rods will hold 450 HP. I'm doing an eaton swap on my Mach 1 powered fox.

I'm not asking how much power my motor can handle I'm asking how long has it lasted at that power level, but it seems all supercharged 4.6's are garage queens.

Hey Def...I got "Whippled" around 55,000 km's and I'm currently at 115,000 km's without any problems what so ever. It's my summer daily driver at 125 Km's per day and all is still well !! I'm looking for a little more WHP, so to be safe, I'm upgrading my Short Block
to a Brenspeed B326 Stroker and Heads to Ford Racing CNC Ported over the winter months. You will be fine and have fun !! :tup

^ You are honestly one of the first people that has given me a kilometer number, I've searched tons of threads ( and am doing so now LOL) and most people running your kind of power on the stock block have had them for a long time but don't put the hammer down on a regular basis, or don't drive them regularly, I don't want or need that kind of power but the M90 seems maybe a little on the tame side.
I hope my post isn't taken as flamey cause it wasn't meant to be, 440 hp is around what I want which should be pretty safe with a good tune.
Also could you answer one more question for me? What is it about not shifting to 5th (in a standard) or OD in an auto, while in boost?

You are so right Def.. the Tune on our cars is so extremly important whether you are at 440 whp or 540 whp. I have been running a little on the edge with my current set-up and stock botton end for about four years now. However, I religously get everything checked on the dyno each Spring and always maintain 94 octane, 10-11 lbs boost, and shift no higher then 6200 rpms (stay off the rev limiter). Some say that if you are FI going WOT in an overdrive gear (5th) for an extended time with stock bottom end, this will cause a "Kaboom" Apparently, it comes down to too much load for too long. Personally, this has not been a problem for me so far.... :wink:

Thanks! Is there a Canadian Brenspeed or are you ordering out of the States?

Ordered from Brenspeed, USA......
Chandler there was a big help :wink:

You have that amount of kilometers at 538 RWHP ? How often you beat on it??

Yep, she went away for the Winter at 538 rwhp with 115,000 km's.
It's not a strip car, nor do I constantly beat on it daily....However, she gets her fair share of action that's for sure, if you know what i mean ..lol !!
I owe a lot to my friends Paul and Pat at Steeda.Ca who take real good care of me . It's Dyno tested each Spring just to make sure everthing is spot on, running safe tune , run 94 octane, 11 psi, don't shift over 6200 rpm's and stay off rev limiter. :tup

Yes, Pat tuned mine at 497 rwhp on 91 octane....I shift at 6000 rpm, and when Im at the track I run the Ultra 94 octane just to be sure.

yea i was hoping to put out 380 to 400rwhp

Hi new guy here! My father`s 05 4.6 is stock with a Roush super charger at 8 psi ,with 75000km`s on it with no problems. Tuned by Roush.

^ which charge, m90 or r2300?

Hey, he has M-90 .Rated at 435 hp at 6psi stock. He has the 8psi pulley ,my guess is 475ish . Thinking of taking it to performance dyno in Loudon N.H. in the spring for a tune. My car is stock Coyote 2012 for now but thinking hard on a V-3 Vortech.

cool thanks,

Have you had issues with your insurance company? A fellow worker was interested in supercharging his 6 cyl convertible but when he checked with his insurance company, they told him his insurance would be voided and he should seek another company. so far he has not been able to find an insurance company that would allow this. seems strange since they will cover a supercharged shelby. any comments or suggestions would be helpful.

No problems at all. As a matter of fact i showed my broker the car when bought it.

Shelby's are built supercharged off the assembley line, so they come that way and the insurance company has to suck it. If you supercharge a regular car, the insurance company thinks the only reason you're doing it is to race, and that means you'll wreck on the street while racing, and when the propane tanker truck you hit catches fire, it blows up and kills dozens of innocent bystanders, which they have to pay for because it was your fault. All because you wanted to supercharge your car. Easier to just say "no coverage" and keep the streets safe for our kids and keep everyones insurance premiums lower. :D

:lol:lol:lol:lol Man thats way too funny. Yet sadly has alot of truth to it likely:bleh:

My first stock motor was at 110,000 438 RWhp Auto. With a whipple H.O. 10lbs of boost. Probably at least 20 Dyno runs numerous different E-mail tunes and lots of play with the throttle. I had a stroker on order so I beat this stock motor and trans was bouncing off the rev limiter one night doing donuts in the rain. Bang broke a rod in half and put pieces thru the block.This was definately the weak link in the chain. Had I not been bouncing off the limiter and fooling around this probably would not have happened. As I had just done some full pulls on the Dyno the week before. I now have a stock motor with about 150,xxx K I'm not too sure about the mileage exactly. I have a TVS2300 3.5 in pulley With auto trans. Can't seem to tune it past this limit or it starts to ping with 404 RWHP and 395 RWTQ With about 8- 10 pulls on the dyno. AFR 11:3-11:8. As I am still building the JDM short block I will be a little safer this time. I will be putting out the question about gas soon and why I cant seem to pull off better numbers. Just did a 5 hour remote tuning dyno session with two guys from a company in Indiana.Excellent tuners who have been around for a long time. Trying a lot of different stuff. Not my field so I don't know what all they did.Have made fooling around with this car a hobby but what an expensive one.If your wondering why the stroker is taking so long. That would be a private conversation.Hope this helped a little with your mileage question. I personally think fatigue would come into play around 150,000 if your up around 10 lbs. But there is so many variables around safe tunes and heat etc. It just makes for good reading i would hope.And maybe save someone some bucks along the way.

To the original poster. I am using a non forged 4V motor in my car with an eaton swap. It has the same rods as our gt. Blower is set to 9 PSI and it make 459 whp and 440 TQ. It has seen about 25 passes at the track and lots of street duty. Dead reliable thus far.