Bolt on turbo kit (9 Viewers)

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Stock pulley size. It was on Joey's truck which is 4.6L and had a little bit of cleanup work to the head and a ported throttle body. No EGT info, not really as important as AFR.

Cruzilla said:
What size pulley was on the SC truck? and any info on EGT's?
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scottryana said:
The intake air temps on 3 back to back pulls did not change the HP/Torque numbers. The only time you are going to see higher numbers with an intercooler is when the temps are hot. So they wouldn't change in this situation, if it is 105 degree summer day you likely won't see these numbers and an intercooler at that point would get you back closer to them.
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I kind of have to disagree with that statement. The intake air temp will change depending on how hard the turbo is working to compress the air. The more air its compressing-ie up a steep mountain pass, the more heat is created. Especially after heat soak happens the IAT will be much hotter going straight into the engine. An intercooler would help cool the air back down and make it more dense before entering the engine, hence more power. Who knows how much, but I think it would be measurable by the end user with a "seat of the pants" dyno.

alia176 said:
So, at my elevation of 7,000', using 3% power loss per 1000' = 21% loss. So that equates to 25 hp loss at elevation, which means I'm using up a whopping 96 hp to move my 7k phat arse around. :bang:
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I believe that 3% is based on naturally aspirated gas engines. With a turbo the loss is much lower.
 
Go ahead and disagree with it. What I said is correct. In most driving situations you will not make more power than what was put down today with an intercooler. You will loose power when it gets hot and you will get closer to the power figures listed with one.

Jason Andrews said:
I kind of have to disagree with that statement. The intake air temp will change depending on how hard the turbo is working to compress the air. The more air its compressing-ie up a steep mountain pass, the more heat is created. Especially after heat soak happens the IAT will be much hotter going straight into the engine. An intercooler would help cool the air back down and make it more dense before entering the engine, hence more power. Who knows how much, but I think it would be measurable by the end user with a "seat of the pants" dyno.



I believe that 3% is based on naturally aspirated gas engines. With a turbo the loss is much lower.
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White Stripe said:
Nice. That will be a great power increase over stock. Nice to see legit numbers and time taken to get them. Only bad thing is that now were going to see lots of 80s pulled over on the side of the road...getting speeding tickets.
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That's why I can't have one......... I've had two speeding tickets in two days......and only one of those was on a city street...... The other was a main highway.

Same reason I have never owned a crotch rocket. I'd never have a driver's license!
 
Jason Andrews said:
I believe that 3% is based on naturally aspirated gas engines. With a turbo the loss is much lower.
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That is correct and that is why I made my statement. I have a NA vehicle.
 
scottryana said:
Go ahead and disagree with it. What I said is correct. In most driving situations you will not make more power than what was put down today with an intercooler. You will loose power when it gets hot and you will get closer to the power figures listed with one.
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Okay, I'll take your word for it. Care to explain? Lost me at the end of that.

alia176 said:
That is correct and that is why I made my statement. I have a NA vehicle.
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Oh my bad I see what you were saying.
 
Heat of compression for ambient air is roughly 15°F per PSI. So, if we're compressing the air to 6 PSI, then there will be a temp increase of roughly 90°F. It doesn't matter whether you're at elevation or not. What matters is what temperature you are starting at (ambient).
 
An intercooler does not make power, all it does is restore power lost. You will not make more power by adding an intercooler. The highest amount of power you will make with this kit, give or take is 220awhp and 274ft/lbs all wheel torque. Yes you can lose power when the temps are hot and yes you can get close to getting that loss back by cooling the air charge but you will not make more power over cool temps just by adding an intercooler.


Jason Andrews said:
Okay, I'll take your word for it. Care to explain? Lost me at the end of that.


Oh my bad I see what you were saying.
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scottryana said:
An intercooler does not make power, all it does is restore power lost. You will not make more power by adding an intercooler. The highest amount of power you will make with this kit, give or take is 220awhp and 274ft/lbs all wheel torque. Yes you can lose power when the temps are hot and yes you can get close to getting that loss back by cooling the air charge but you will not make more power over cool temps just by adding an intercooler.
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Agreed. I guess I didn't read exactly what you were saying. I was referring to the average user here under what could be considered a normal drive, not the dyno. All I was saying is that if you want to feel like you have the same power when you leave your house and get on the highway as you do when you've been in boost for 10 minutes straight going up a steep highway you would benefit from an intercooler.

Adding an intercooler to a truck and putting it back on the dyno would not increase the output. Definitely agree with that!
 
scottryana said:
That is something Joey will have to work on. I have screenshots of pictures of the pulls, but nothing that is very good. I guess they told Joey they would get him data so he could have good visuals, but I know sometimes shops just want you to get your 3 pulls and move on.

Like this is the first pull SC vs Stock, but the max power number wasn't right because the trans shifted right at the end of the run that I cut off.
View attachment 1955604
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First dyno run was in “2nd start” I believe, so no shifting & 1 to 1 drive.
 
Congratulations Joey, you certainly can make magic happen !!
 
In case it wasn’t clear before...

B8B4EA34-1954-4129-8C69-C6334F7200EE.png
 
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