My Simons CPR Attak on dyno, WOW

[ken_climb]

Blah blah blah....you've shown on your boondocker thread that you don't have a clue!

 

[KnappAttack]

Thanks lakercr, Reminds me of all the times I have spent on the dyno. Many days and nights, lots of sacrifices were made. I remember one New Years eve. Sitting in Wild Rose WI, porting a set of cylinders to test the following day on the dyno. 10 HP gain was worth it though. lakercr is right, I am not easly impressed. I also have to see things for myself. I do not belive anything anyone tells me. I will say though, that I have never been steered wrong by Jeff at CPR. I have a new favorite machine, and it is this Turbo package in my Attak. My second favorite was a CPR turbo Warrior I had. mulot, I am afraid I cant help you on that side discharge thing you have. Sorry to say, but it will never make that type of power at that boost level, that is a fact. You'll have to be happy turning it up to about 15 pounds to make those numbers. If you don't like it, don't read it, or don't listen to me, I don't care. Just don't come here spewing garbage out your mouth. Cause that is what it is, and I'll call you on it. Will report back after getting back from UP guys. I am so confident in this sled, I am not even going to bring a spare. How many would do that for a 4 day outing with a new machine and only 30 miles on the odo? espicially when the wifes Attak is sitting here with fresh oil and all polished up as well as the Rage I have sitting waiting to be sold or turboed. My only reservation is kicking out a track, which my CPR turbo Warrior did in the first 50 miles of its life two years ago. Luckly the dealer had a track and the damage to the chassis minimal. I was able to finish the week albiet without studs, and that sucked. Mike Knapp#17

 

[lakercr]

But lets not forget... the turbo in the exhaust path... its creating a restriction which cost HP.



Just imagine that:

Take a stock apex motor, <snip> which will reduce hp a bit again....

Do you think I missed something here?

Mulot30h - yes, I do think you missed something here, the point of Mike's post. I went back and re-read it. 18 lines of text, 3 that mention HP, and 15 that talk about fit, install, and performance in the field. I'm not saying you are out to lunch on your numbers, and your dyno might give up different (lower #'s) that whatever Mike is using. Again though, I don't think the point of the post is about dyno #'s nearly as much as it is impressions on the overall performance of the kit. On a related note, I think you've been around fast sleds long enough to know that the trailers are full of 'big HP' sleds on Sunday - lots more to going fast than just the numbers.

 

[lakercr]

Blah blah blah....you've shown on your boondocker thread that you don't have a clue!

Everything was OK save 8 leaking exhaust valves...

How could I knew that before removing the head? Can you tell me so if this happen again I'll save a lot of head scratching and testing only to find leaking valves.

thank you!

Leakdown test and listening for where the air is going on weak cylinders.

 

[Simons CPR]

all boost is not created equal, 12 psi on one kit is not necessarily the same on another. look at the size of the intercooler on my kit, now look at the high flow fan forcing air thru it and further improving its ability to cool the charge, now look at the shared header volume technology that makes the turbo spool quicker without being restrictive, and the free flowing exhaust can that has a high pressure drop across the turbine wheel to also increase spool responsiveness and efficentcy. we spent alot of time on this kit and the results speak for themselves. i give a MONEY BACK GUARANTEE on my hp claims. does anyone else??? put up your money and buy one, if its not what i say, you get your money back!!! it just that simple... i can't help you anymore than that. jeff

 

[Need for Speed 2]

bet they cant guarantee anything if you put it together and bend 8valves daaa

 

[Fred Flinstone]

all boost is not created equal, 12 psi on one kit is not necessarily the same on another. look at the size of the intercooler on my kit, now look at the high flow fan forcing air thru it and further improving its ability to cool the charge, now look at the shared header volume technology that makes the turbo spool quicker without being restrictive, and the free flowing exhaust can that has a high pressure drop across the turbine wheel to also increase spool responsiveness and efficentcy. we spent alot of time on this kit and the results speak for themselves. i give a MONEY BACK GUARANTEE on my hp claims. does anyone else??? put up your money and buy one, if its not what i say, you get your money back!!! it just that simple... i can't help you anymore than that. jeff

Wich turbo do you use?

 

[Need for Speed 2]

mike how do you like that valve. i give you respect mike years and years ago you beat us out in a final round you were an inspiration to me at that time true gentleman to race against. weeks later youre guys let me hang in your pit area and watch and learn. thanks buddy im only glad to help share what ive learned about boosted apexes. as far as moluth as long as someone responds hell keep spitting out the garbage. you have to remember i think alot of us here tried to help this guy. wheres the love moluth.

 

[lakercr]

But lets not forget... the turbo in the exhaust path... its creating a restriction which cost HP.



Just imagine that:

Take a stock apex motor, <snip> which will reduce hp a bit again....

Do you think I missed something here?

Mulot30h - yes, I do think you missed something here, the point of Mike's post. I went back and re-read it. 18 lines of text, 3 that mention HP, and 15 that talk about fit, install, and performance in the field. I'm not saying you are out to lunch on your numbers, and your dyno might give up different (lower #'s) that whatever Mike is using. Again though, I don't think the point of the post is about dyno #'s nearly as much as it is impressions on the overall performance of the kit. On a related note, I think you've been around fast sleds long enough to know that the trailers are full of 'big HP' sleds on Sunday - lots more to going fast than just the numbers.

You have a point in the fact I should have started another post instead of polluting this post... My error sorry!

Yeah, maybe... I'm not trying to give you a hard time on this post. I just spend a lot of time working on stuff that (I hope) make your sleds work a little better, or look a little nicer, and I know that Jeff spends more time on this than I do. So, when I see someone posting about how well a vendor's design/fabrication efforts have paid off for them (and then watching that core message get lost in a debate on a point I think is at best secondary) I just thought I should say something.

 

[Fred Flinstone]

Simons CPR or Mike Knapp, can you tell me wich turbo (exact model) do you use?

Thanks!

 

[lakercr]

all boost is not created equal, 12 psi on one kit is not necessarily the same on another. look at the size of the intercooler on my kit, now look at the high flow fan forcing air thru it and further improving its ability to cool the charge, now look at the shared header volume technology that makes the turbo spool quicker without being restrictive, and the free flowing exhaust can that has a high pressure drop across the turbine wheel to also increase spool responsiveness and efficentcy. we spent alot of time on this kit and the results speak for themselves. i give a MONEY BACK GUARANTEE on my hp claims. does anyone else??? put up your money and buy one, if its not what i say, you get your money back!!! it just that simple... i can't help you anymore than that. jeff

Do you also guarantee trailabilty and longevity at the same hp/boost levels (11# - 260hp) on pump gas?



Also point is pressure drop in turbine means there is restriction, right?!

Then if you try to compare exhaust backpressure against stock exhaust, you won't find anywhere near the same backpressure, and backpressure means.... lost hp.... you really can't get me wrong on this one!

Increased turbine inlet pressure is the one undesireable product of ANY turbo system. I don't think anyone is debating that a restriction in the exhaust (turbo) will increase 'back pressure'. I think we can all agree that the world is round.

I'm struggling to figure out exactly what you're trying to debate here? Comparisons of TIP, IC efficiency, etc. are all icing on the cake. And, from what I have read in your previous posts, you don't have a cake yet.

 

[dirkdiggler]

I do have one question

How come the Simons RX-1 turbo was only capable of 190hp on 7.5 pounds of boost. But Apex is making 260 with only 3.5 pounds more. that's a 70hp gain with 3.5 pounds.

I understand your running a bigger cooler. Is is a combination of the bigger cooler, Fuel injection and a better motor config on the apex? How much Power does the apex make on 7.5 pounds?

 

[summitking]

sled

mulot30th to see 265 at 11 lbs of boost you should either buy this kit or a mcx your not going to see it with your sled

 

[Auskins]

Alright, Jeff would not put his credibility on the line on this site by making up stuff, if he says he can make X number of boost on X number PSI, he is! Also Mike is backing it up with his own dyno results!
It just shows ya how much better engineered his product is. He spent a long time putting this together and making sure it worked right and would be reliable instead of rushing it through that first summer in 2005 when the Apex first came out. Plus the same boost can make different CFM on different set ups. (If you got 10 pounds on a 2" pipe and 10 pounds on a 4" pipe, guess which one will pump more air into the engine)

Sounds like its a great kit, you sure are lucky to own one Mike!

 

[hlmrx1]

I see we found Bin Laden only now he is wearing a Hitler disguise, lol,,,,
Fun, fun, fun