so has anyone blown an engine

WRXracer · Jan 18, 2004

Is there anyone here that has blown an engine on a Mustang GT after putting a Blower on with the chip that comes with the blower.. how can you tell if the car is pinging with the loud scream of the blower..

white99gt · Jan 18, 2004

WRXracer said:
Is there anyone here that has blown an engine on a Mustang GT after putting a Blower on with the chip that comes with the blower.. how can you tell if the car is pinging with the loud scream of the blower..

Never trust the factory chip.SOme have had good lucky.Others the cars wont run or it kills the motor.
Best thing is get the car tuned after the blower install.

99RedGTman · Jan 18, 2004

What kind of boost can you run on a stock bottom end with 70,000 miles?

white99gt · Jan 18, 2004

99RedGTman said:
What kind of boost can you run on a stock bottom end with 70,000 miles?

If the compression is good and the motor is well taken care of, up to around 10psi or so.
But with that many miles, id plan on a rebuild in the future just in case.
Because you never know what can happen.

99RedGTman · Jan 18, 2004

white99gt said:
If the compression is good and the motor is well taken care of, up to around 10psi or so.
But with that many miles, id plan on a rebuild in the future just in case.
Because you never know what can happen.

I'm planning on 7-8 PSI with PP heads from Fox Lake, some cams, LT's, h-pipe, exhaust, plenium intake and 75mm TB, what kinda power will that make?

white99gt · Jan 19, 2004

99RedGTman said:
I'm planning on 7-8 PSI with PP heads from Fox Lake, some cams, LT's, h-pipe, exhaust, plenium intake and 75mm TB, what kinda power will that make?

More than the stock bottomend will handle.
Roughly 450+rwhp depending on the tune.

DeadLurker · Jan 27, 2004

WRXracer said:
Is there anyone here that has blown an engine on a Mustang GT after putting a Blower on with the chip that comes with the blower.. how can you tell if the car is pinging with the loud scream of the blower..

Planning on buying the blower directly from the manufacture?

wjfawb0 · Jan 27, 2004

Take white99gt's advice and go to a dyno where they can either reburn your chip or reflash your computer. You need a good dyno tune to maximize power across the rpms and also to make sure you're not going to change the shape of your rods, pistons and maybe even crank. That's bad.

hognutz · Jan 27, 2004

I don't have a blower but I would buy some tool to monitor your air fuel if I did. I don't think you nessesarily need a "dyno" tune. you just need to verify your airfuel. without that you are asking for trouble in my opinion. I have read to many people post about sending the chip back and forth trying to get the tune right. I live in oregon and there is just no real good places I have found for this kind of thing. I think I am just going to buy the sct sofware and a tool to monitor my air fuel and try to do it myself.

Too make a short story long there is no way someone can optimize your car with out taking a look at what your car is doing. They can only take a "guess". now I am sure you could log your own data and email it to someone and they could hook you up. Like if you bought the cobra killer kit, or kenne bell and put it together. logged you air fuel under load. then sent that data to that tuner. they could proably nail it right on. I want to just do it myself so I no loger feel like a dumbass when it comes to tuning newer cars.

CTGrey02 · Jan 27, 2004

hognutz said:
I don't have a blower but I would buy some tool to monitor your air fuel if I did. I don't think you nessesarily need a "dyno" tune. you just need to verify your airfuel. without that you are asking for trouble in my opinion. I have read to many people post about sending the chip back and forth trying to get the tune right. I live in oregon and there is just no real good places I have found for this kind of thing. I think I am just going to buy the sct sofware and a tool to monitor my air fuel and try to do it myself.

Too make a short story long there is no way someone can optimize your car with out taking a look at what your car is doing. They can only take a "guess". now I am sure you could log your own data and email it to someone and they could hook you up. Like if you bought the cobra killer kit, or kenne bell and put it together. logged you air fuel under load. then sent that data to that tuner. they could proably nail it right on. I want to just do it myself so I no loger feel like a dumbass when it comes to tuning newer cars.

Theres more to it than that, you also having timing tables, idle tables, along with the fuel management. Several products including SCT and EFI will be out shortly for doing it yourself.

tontot77 · Jan 27, 2004

I've blown the ringlands off piston #7 in my cobra. Don't boost unless you can afford a rebuild with some lower compression pistons and some non-hypercrap rods...

Bullitt 2496 · Jan 27, 2004

Just buy the blower from Tim. He'll take care of you.

skywarp · Jan 27, 2004

Not to hijack the thread, I was going to post something similar. Has anybody blown a motor yet with a KB 2-valve kit? Or is this unit better at thwarting detonation than a centrifugal?

leitrim · Jan 27, 2004

skywarp said:
Not to hijack the thread, I was going to post something similar. Has anybody blown a motor yet with a KB 2-valve kit? Or is this unit better at thwarting detonation than a centrifugal?

That's the exact same question I wanted to ask. I know that the KB kit has only been out for a short time, but has anybody lost a motor yet with the KB?

wjfawb0 · Jan 27, 2004

I don't know if the thermal efficiency of the KB blower is up to par with that of the better centrifugals out there (how much heat the blower adds to the air when compressing it). I know I heard Tim mentioning high inlet temps on some KB cars. I know for certain that roots cars like my own make all sorts of intake heat in the high rpms. The air to water coolers also tend to heat soak after extended hard runs. It is not so easy to get the heat out of the water into the atmospheric air after it was taken out of the intake air charge.

With any forced induction, when you compress air the temp goes up. The air to air and air to water coolers take some of the heat back out before the air enters the cylinders, though. Usually you'll hear people refer to pulleying down their blower after installing an air to air cooler on a centrifugal car, to get back boost lost in the cooler. Cooling the air will drop the pressure, but the cooler will also restrict airflow more. You need to turn the blower faster to make up the airflow loss, but the cooler air allows more timing and shorter cool downs between track runs. Also on a hot day, the cooler will help to prevent engine damaging detonation or preignition. Many 03 Cobra owners are changing the heat exchanger for the blower cooler under the front bumper to a larger unit. This allows their air cooling system to hold more fluid and dissipate the heat more rapidly.

-Jason

GT2000JAY · Jan 27, 2004

I would agree with the statement above that it's not a good idea to add a blower or make major modifications unless you can afford a rebuild. Just makes sense. I just recently asked Tim about how I could back off the power in my car after adding a blower - I will have my cams done in February and I've got all the other basic bolt-ons (headers, midpipe, plenum, etc. etc.). The answer I got from him is that the car can be tuned to make it "safe" (being a relative term, of course) by taking out timing, etc.

Until I forge the bottom end I'm comfortable with the thought of making just under 400 RWHP. Now if the damn government would hurry up with that check.......

skywarp · Jan 28, 2004

So lets say you want 400RWHP. Would it be safer to get by using a 6# kit and changing either the cams or heads? This way you would'nt have as much boost in the motor . Or would the 9# kit be the way to go. Is 400 the hypothetical number before trouble?

hognutz · Jan 28, 2004

CTGrey02 said:
Theres more to it than that, you also having timing tables, idle tables, along with the fuel management. Several products including SCT and EFI will be out shortly for doing it yourself.

I though the sct sofware gave you control of all that?? From what I read it sounded vary complete. I guess I don't understand what you are saying. If you have a data logger and tuning sofware what else do you need? I guess maybe I was not clear when I said air fuel. I meant data log. that would include everthing. the air fuel is for the wot tunning.

so has anyone blown an engine

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