The proto typing of a 2011 GT turbo kit

CPRsm

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I have Emailed and sent Kimmer some coin. You guys are stuck with me for a while. Figured I'll put my money where my mouth is.
There are a few here, but those of you who don't know I recently built a TT kit the GT500's which produced 849rwhp uncorrected on a stock engine with 91 octane. More testing is going to be done here pretty soon with a single intake fuel system on it. Probably going to let them convert it to E85 and break 1000rwhp with it. Here are two shitty pics and a decent one.


embarcadero008.jpg

embarcadero009.jpg

http://razzi.me/albums/4375-mustang...tangs-by-the-bay-san-diego-ca-2011/size/large

This is a copy paste from another forum to get you guys caught up.

Will get up some more pics later tomorrow. But just got back from Norcal picking it up. It's the gorgeous Kona blue. It has a Hellion kit on it right now but he's not happy. The O2's are welded in pre-turbine which is effecting how it drives horribly. Apply the slightest throttle and the back pressure causes all kinds of problems. Rattles a good bit on the k-member and rubs the tire. Unhappy with kit he took me up on my offer to build him one. This see what these things will do when a kit is properly built ! Test a few turbos on here from different brands and see where we end up

This sux to see. Hoped the one guy who had problems was isolated, or didn't know what he was doing. I looked and there is no adjustment to fix this.

hellionkitforsale003.jpg
 

CPRsm

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Any idea on the price target of the kit? Will you be using the 76mm precision?



No, I know for a fact as of right now it will not be PTE's 76mm. It's the wrong turbo. The turbine is a HUGE restriction. You can see it in the graphs of any turbo kit out there that uses it right now. It creates so much back pressure the valves are floating at 12-15 psi. The back pressure is over 2-1 at only 10psi. As a matter of fact, try to find a Hellion graph. Every vendor promoting it shows the dyno numbers and pans right by the actual graph to show the numbers.

One company is already trying Chinese a turbo with smaller turbines and starting to float at 6 psi. The O2's in this kit are pre turbo, which causes a real problem for closed loop drive ability. The excessive pressure is skewing the O2 reading, loading the car up and you can hear small back fires out the muffler. Even though the AFR's are in check while it's happening. They are reading differently than what is actually happening in the engine.

Right now I would put the kit around 6500-7000. Mine will be different than the others on the market as usual though. It will come with an intercooler that is built with a quality core. Not a Chinese intercooler like what comes in this kit. It will come with headers, k-member and a tubular radiator support as well with the kit.

I'm going to be lifting the skirt of the turbo industry. Some of the advertising and way folks are getting numbers is frustrating to say the least.

New cross flow IC core, where Hellion's is a vertical flow.
29357922707093734940013.jpg




A little header pro-typing from a few months ago. Made these while the stock exhaust was off a customers car for a Kooks install lol.
2011headers021.jpg
 
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JeremyH

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A PT7675 would work fine with the right size piping and wg placement. Proabably go for the t4 .96 ar.
 

CPRsm

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You would think so, but this kit with the 7675 is not the only one with back pressure problems. Others run larger tubing and still see high numbers.
I'll check, but I believe the 96 is on there. See if I can dyno tomorrow and then it all comes off.
 

JeremyH

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Yeah I mean thats a 1000hp capable turbo. Granted displacement cfm and rpm since these motor rev so high come into play but with 3" piping pre turbo and 3" after I dont see it being an issue. Im not sure how big you can get the piping even with the tubular k member though. I would think that would be a good base turbo for your kit. Def look foward to what you come up with though.

Are you going with a similiar mouting location or for a higher center mount for the turbo?
 
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CPRsm

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Ahhhhh, but the compressor is a 1000hp capable part. The 76 is a 1000 hp capable turbo on the right engine. Put it on a 454, and the turbine will be such a restriction, the shaft speed will limit the compressors ability to move air.
I'll see what I can find. but off the shelf nothing is tickling my fancy.
 

JeremyH

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Correct, but its a 75mm 84 trim turbine wheel with 3.5" vband outlet. That with a undivided t4 .96 housing will still allow plenty of flow on a 5.0 liter motor reving to 7k rpms for a 6-10psi base kit 600-700hp.

They have a pretty neat cfm calculator if you want to play with the numbers and compare to the compressort maps sometime to give you a rough idea.

http://lovehorsepower.com/joomla/index.php?option=com_content&view=article&id=4&Itemid=88

http://lovehorsepower.com/joomla/in...alculator&catid=8:mr2-helpful-stuff&Itemid=49


Then again the turbo size that works is going to be related to the size and orientation of the piping so it is hard to say. I would try for 3" from the header to the turbo and 3.5" down pipe that turns into 3" before it ties back into the exhaust. The better flow you have here will allow for a better range of turbo without the backpressure issues.

Would love to have the time/tools/facilities to build a kit. My good friend in nc builds custom tubo kits at his shop for a living and loves it.


Best of luck on the kit!
 
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Loudmouth1o

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Someone forgot to mention here it took a 125 shot of nitrous to achieve those numbers. I thought it was probably added to help with the inlet temps. But then saw a pic of the car and it's not even running the Hellion cooler anymore anyways. So who knows.
New cross flow IC core, where Hellion's is a vertical flow.
29357922707093734940013.jpg

Know the facts before you shoot down a shop, try calling BBR and getting the real info on their kit, it is like no others, they are my local shop and i stand by their work. Ive seen numerous cars they have built with the hellion kit and has convinced me to purchase the kit pretty soon. Im not trying to be harsh or anything, I just know what they used in their kit and out of respect to Chris and the BBR team not going to let anyone shoot them down that doesn't know the facts.
 

Bullitt357

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That looks like a Procharger intercooler. Didn't they have a Procharger on that car previously? That would explain why it has that intercooler. They probably deleted the one that comes from Hellion to save some coin.
 

BMR Tech

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Very cool! Welcome as an advertiser!

849 is pretty impressive! Do you know what the SAE # was?

800 seems to be a challenging # on pump gas, I cannot imagine 91 Octane.

Was the 849 on a spike, or clean?

Oh and, Grabber. Not Kona :crazy:
 
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SteveP

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That looks like a Procharger intercooler. Didn't they have a Procharger on that car previously? That would explain why it has that intercooler. They probably deleted the one that comes from Hellion to save some coin.


We used the procharger intercooler to save time on the instal seeing how it was already there. We do have all the faith in the world with the Hellion intercooler though
 

rford426

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Know the facts before you shoot down a shop, try calling BBR and getting the real info on their kit, it is like no others, they are my local shop and i stand by their work. Ive seen numerous cars they have built with the hellion kit and has convinced me to purchase the kit pretty soon. Im not trying to be harsh or anything, I just know what they used in their kit and out of respect to Chris and the BBR team not going to let anyone shoot them down that doesn't know the facts.
LOLZ BBR will TUCK TAIL anytime you try to discuss with them...:tdown:
 

CPRsm

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Cmon this is CPR's thread lets please try to keep it clean.
It's quite alright. I am going to be bringing facts in here which people aren't going to like. I am not afraid of it and more than willing to discuss it rather than hide behind the vendor role. Gimme a minute here.
 

Sky Render

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What brand of turbochargers are you looking at using? Quality pieces from Borg-Warner or TiAL perhaps?
 

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