Whipple 4.0L Dyno Results on the Lethal Performance 2010 GT500

[Jared@Lethal]

There are plenty of GT500's making the same power (maybe more) than what yours is at the same or lower boost numbers, not to mention on stock blocks. That's all my point was, don't get your panties in a wad. I know power numbers don't mean shit, but then why get the biggest blower, just to say you have the biggest blower, if it is not worth it?

I will reiterate it again, I love your guys build so don't think I am knocking on your work or anything, but I think the 4.0 whipple is junk, I am not impressed with it at all. 21.5 PSI with C16 fuel and making 779? My old neighbors GT500 is making somewhere around that on pump gas at lower boost.

First off you're debating dyno numbers which is retarded because they mean nothing especially when you don't even understand the type of dyno the car was tuned on. After you've answered the question below and figured out what out car would make on a Dynojet tell me how many 2.8L GT500's there are at 21psi or less making the same power we are on a Mustang Dyno.

Are you aware of the difference between a Mustang Dyno and Dynojet and that they produce different numbers?

 

[carbd86gt]

There are plenty of GT500's making the same power (maybe more) than what yours is at the same or lower boost numbers, not to mention on stock blocks. That's all my point was, don't get your panties in a wad. I know power numbers don't mean shit, but then why get the biggest blower, just to say you have the biggest blower, if it is not worth it?

I will reiterate it again, I love your guys build so don't think I am knocking on your work or anything, but I think the 4.0 whipple is junk, I am not impressed with it at all. 21.5 PSI with C16 fuel and making 779? My old neighbors GT500 is making somewhere around that on pump gas at lower boost.

You are contradicting your own statement. You are saying that you are not caught up in the numbers, but YOU ARE caught up in the dyno numbers. Here is an example of you getting caught up in thew dyno numbers...

I am not impressed with it at all. 21.5 PSI with C16 fuel and making 779?

You have ABSOLUTELY no data to back up any of your comments about the blower. Different cars, on different dynos, on different days will make much different numbers. When the car was bone stock on the same dyno, it made 421 rwhp where other cars on different dynos were making in the 480 rwhp range, some braking 500 rwhp!!! So, are you not impressed with the stock blower or car in stock form at all? Even though it ran mid 11's BONE STOCK? Stop with your babble. The car is going to the race track and THATS where we'll find out how the car will really perform. BTW, the only 8 second twin screw cars (Boost only) are running Whipples, the Ford Racing Cobra Jets

 

[SUHleen]

What my point was is that the 2.8L KB is much more efficient. I don't see the point in getting a 4.0L Whipple. Not impressed with the blower at all and like I said I love the build, just wouldn't have gone with the whipple if I knew it would take over 20 psi to make 779, or about 850 on a dynojet.

So anyways, no, nnumbers don't matter, but the efficiency of the 2.8 KB over the 4.0 Whipple is a huge difference

I know the difference between a Mustang dyno and a Dynojet, as I showed right here. The same car on a dynojet would be making about 850, as I stated.

What I'm trying to get at, is that for it being 4.0L, I would have expected it to make 779 with say 15-17 PSI instead, with all the supporting mods you guys put on. That is the ONLY point I am trying to make. If you swapped it with a 2.8 KB and run the same size pulley, I bet it will make as much or more power. That is all I am trying to get across.

For it being such a big blower, I would have expected it to get more rwhp/psi of boost.

 

[Jared@Lethal]

I know the difference between a Mustang dyno and a Dynojet, as I showed right here. The same car on a dynojet would be making about 850, as I stated.

What I'm trying to get at, is that for it being 4.0L, I would have expected it to make 779 with say 15-17 PSI instead, with all the supporting mods you guys put on. That is the ONLY point I am trying to make. If you swapped it with a 2.8 KB and run the same size pulley, I bet it will make as much or more power. That is all I am trying to get across.

For it being such a big blower, I would have expected it to get more rwhp/psi of boost.

You're still not making sense.

Swapping the 4.0L for a 2.8L with a 4.00" pulley on it would be no where near the same power level as we're making now.

It takes a 3" upper pulley and a 10% overdrive pulley to make the same boost on a 2.8L that we're making with 4" upper and 10% lower on the 4.0L.

 

[05yellowgt]

I would imagine that the 4.0 isn't in its best efficiency range with pulley combination that it has right now. Just as the H series of blowers from KB don't start to out perform their non-H counterparts till a certain amount of boost/pulley combo. Running 25+psi is where you will probably see the 4.0 pull ahead of the other blowers but that is just speculation on my part.

 

[Dex]

Would be kinda cool to see a comparison between the 4.0 whipple and the 2.8 KB. You may do it but you wouldn't let us know the numbers because you guys sell the most Whipple kits. the CJ's also weight a ton less than a normal stock GT500. So lets throw that out....

Not trying to pick a fight but I see where SUHleen is coming from.

 

[Jared@Lethal]

Would be kinda cool to see a comparison between the 4.0 whipple and the 2.8 KB. You may do it but you wouldn't let us know the numbers because you guys sell the most Whipple kits. the CJ's also weight a ton less than a normal stock GT500. So lets throw that out....

Not trying to pick a fight but I see where SUHleen is coming from.

Where SUHleen is coming from doesn't make sense. He has nothing to back up any of his statements.

If you swapped it with a 2.8 KB and run the same size pulley, I bet it will make as much or more power. That is all I am trying to get across. WRONG- As I said it takes a 3.00" upper and a 10% lower to create the same boost that we're making with a 4" upper and 10% lower. Go ahead and put a 4" upper and 10% lower on a 2.8L and tell me how it turns out.

There are plenty of GT500's making the same power (maybe more) than what yours is at the same or lower boost numbers, not to mention on stock blocks.

Wrong again- Show me one GT500 with a stock motor that runs a 2.8L at 21psi that makes over 800rwhp. There aren't any. Now I'll back up my statement with some REAL data. One of my good friends (Andy S.) has if not the fastest, one of the fastest GT500 drag radial cars. He runs 10.teens @139+mph. He has a 2.8L on his car with a 3.00" upper and 10% lower. He makes well under 800whp without nitrous. Heck even with a 75 shot he barely breaks into the 800's on a Dynojet. It really doesn't even matter what he makes on the dyno as he runs faster than most guys that make more power then him. My point again is not to get wrapped up with dyno numbers as a dyno is for tuning purposes and tracks are where the real tests are performed.

but I think the 4.0 whipple is junk, I am not impressed with it at all. 21.5 PSI with C16 fuel and making 779? My old neighbors GT500 is making somewhere around that on pump gas at lower boost.

Just another example. The statement about the 4.0L being junk is just a confirmation of SUHleen's character. He's uneducated when it comes to real technical data which makes him have to say stupid comments like that. If he had something concrete, maybe some actual data about his neighbors car and it's setup maybe, just maybe I'd have something to agree with him on. However his statements have no truth and facts to them. They are just opinions and ramblings about some strangers car.

 

[Dex]

I see where hes coming from as in I myself am not impressed. That is all

 

[jsawyer]

I know that Adam at ST has a stock GT500 with a whipple 3.4L on it that made around the same number. I think where you will see the difference is on the 3.5" pully! I would like to see a stock GT500 with the 4.0 on it. What was the reason for a complete build? I know the stock GT500's are pretty bullet proof.

 

[Dex]

Ok ok, I know you guys will freak about "numbers" but they do somewhat matter.

So on a stock motor with a 2.8H, 23lbs pounds of boost and C16 on a MUSTANG DYNO my dads car put down 750rwhp. Same tune up the street on a dynojet it put down 808rwhp. So a Blower with 1.2 more L, and 2 psi less did 779 with heads, cams, exhaust, upgraded heat exchanger, etc... on a mustang dyno.

Am I missing something here?

 

[SUHleen]

Thanks dex, this is what I'm trying to get across...

And sorry I was in a rush, maybe not the same pulley but the same amount of boost from the 2.8.

I just think if I was getting a bigger blower and more mods then I should be making a lot more power for being at the same psi.

I can get concrete data but some of us don't have all day to be surfing the net...

 

[carbd86gt]

Hey, can't please everyone. Dex, what does your Dads car run?

 

[carbd86gt]

I know that Adam at ST has a stock GT500 with a whipple 3.4L on it that made around the same number. I think where you will see the difference is on the 3.5" pully! I would like to see a stock GT500 with the 4.0 on it. What was the reason for a complete build? I know the stock GT500's are pretty bullet proof.

They are not bullet proof, thats why we had a motor built. With the 3.4L in our 08, the car made almost 800rwhp and blew up at the track. The motor in the 2010 was originally for the 08, but we ended up selling the 08 once we saw the new 2010 cars and color combos.

 

[jsawyer]

They are not bullet proof, thats why we had a motor built. With the 3.4L in our 08, the car made almost 800rwhp and blew up at the track. The motor in the 2010 was originally for the 08, but we ended up selling the 08 once we saw the new 2010 cars and color combos.

Good info!

 

[Dex]

Hey, can't please everyone. Dex, what does your Dads car run?

He wont throw slicks on it because with my Bogarts you need the 3" studs and he thinks its ugly lookin. But on Alcoa 20's he went 11.9 @ 125 in Utah. Lucky to have a DA short of 7000'. This was on his 100 octane tune.


Can we see a dyno sheet? Im not tryin to be an ass but just honestly saying take a look at your numbers and supporting mods. I would call Whipple and say, this is a 4.0? It needs work

 

[carbd86gt]

He wont throw slicks on it because with my Bogarts you need the 3" studs and he thinks its ugly lookin. But on Alcoa 20's he went 11.9 @ 125 in Utah. Lucky to have a DA short of 7000'. This was on his 100 octane tune.


Can we see a dyno sheet? Im not tryin to be an ass but just honestly saying take a look at your numbers and supporting mods. I would call Whipple and say, this is a 4.0? It needs work

Well, like I said, can't please everyone with DYNO numbers. Don't know why everyone is getting all caught up in it.

Using the proper correction factors, the MPH at sea level for your Dads car would be ~134 mph with an ET of 11.04, which a car making REAL 750 rwhp should be faster than that. Our 08 with 726 rwhp (VMP dynojet) went 10.65@137 mph not even with sea level air and PUMP GAS, and that was on its first trip out. Then, with 770rwhp (VMP dynojet) the car went 10.50@139. So, you guys can get caught up in dyno numbers, but we'll be hurting everyone's feelings on the street and at the drag strip

 

[Dex]

Well, like I said, can't please everyone with DYNO numbers. Don't know why everyone is getting all caught up in it.

Using the proper correction factors, the MPH at sea level for your Dads car would be ~134 mph with an ET of 11.04, which a car making REAL 750 rwhp should be faster than that. Our 08 with 726 rwhp went 10.65@137 mph not even with sea level air and PUMP GAS, and that was on its first trip out. So, we can get caught up in dyno numbers, but we'll be hurting everyone's feelings on the street and at the drag strip

hello? 100 Octane tune so he wasn't pushing 750rwhp at the time and with a 2.1 60'.

I ran your results by the local mustang group. No one was impressed. Sorry you couldnt have a discussion and you wanted a pissing match. Bottom line is the consumers aren't impressed.

You guys havent done any KB to Whipple comparisons at the track either so I could careless what your car does at the track. Im just supposed to believe you its gonna be better?

 

[Dex]

Adam at ST has a 2.8H on his 3v and it runs 9's all day long. Smaller motor, smaller blower. Weird

 

[SUHleen]

Thanks for the support Dex, I thought I was the only one going at this battle.

Bottom line, with that many mods, at that high of a psi, running c16 and a huge blower, it should take a lot less than 21.5 psi to get those rwhp numbers, just my thoughts.

 

[ALLOY GT]

hello? 100 Octane tune so he wasn't pushing 750rwhp at the time and with a 2.1 60'.

I ran your results by the local mustang group. No one was impressed. Sorry you couldnt have a discussion and you wanted a pissing match. Bottom line is the consumers aren't impressed.

You guys havent done any KB to Whipple comparisons at the track either so I could careless what your car does at the track. Im just supposed to believe you its gonna be better?

if your dads car would hook it would have been alot faster than 11.9 spinning through 1st gear dont help or breaking traction at the 1/8 mile dont help out either. im sure the 4.0 will be different story on higher boost when its not getting close to being maxed out kinda shitty it takes more boost to make the same power as a smaller blower but take a 2.8h to 25+psi and the whipple 4.0 to 25+ psi and see which one takes over