Kenne Bell or Twin Turbo

harrij081266

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I am at a loss :??: with all of the reading I am doing here. The KB system will run me about $6,300 fully installed, but I read a post where a guy changed from his KB within four months to upgrade to a Twin Turbo System. This isn't something I want to do. Can anyone provide me with pros and cons of the KB vs. a TT system (maintenance problems, durability, etc). And who would you recommend for the TT if that is your recommendation? I have recently come across Hellion's website, but don't know of any other. Additionally, if you have a TT would you give me some idea of the expense to get the system...

Thanks for the advice in advance!
 

slo-GT

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Its the basic S/C vs. Turbo debate.....KB=instant power great for out of the hole and less maintenance than the TT system from what I've heard. TT takes time to build up but in most cases makes more horsepower. I've seen many KB's in the 650rwhp range.....but very few with more. On the other hand you see lots of TT cobras making 700 or 800+ rwhp.
 
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03punisher

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If i could do it all over again I'd go TT, saving up to go TT right now. KB is awesome dont get me wrong but once you max your KB its almost inposssible to go further, on the underhand you could always go with a bigger turbo, if you get tired of what your running at the time.
 

fastmustang70

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Well i had a kenn bell 2.4 made 680 to the wheels with 26psi car went 10.20 at full weight now am putting on a protrubokit single kit with a 78gts trubo so we will have to see if the car picks up so i can only tell you that a kenne bell does go fast thanks Ron
 

harrij081266

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Again, I really appreciate the feedback. I had my heart set on the KB, but when I saw some of the races between a KB and TT on YouTube, there was no doubt which system was the strongest.
 

y2k2gt

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fastmustang70 said:
Well i had a kenn bell 2.4 made 680 to the wheels with 26psi car went 10.20 at full weight now am putting on a protrubokit single kit with a 78gts trubo so we will have to see if the car picks up so i can only tell you that a kenne bell does go fast thanks Ron
What was your mph?
 

rsnyder

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Well, I have also looked into both twin screw and turbo. The conclusion I came to is this: It would cost approx. 12-14k to do a turbo kit with install and tune, supporting mods...etc. It would cost around 6-7k for the twin screw with supporting mods and install. I know the turbo kit comes with k-member etc., and the twin screw kit does not.....but still, that's a HUGE price difference. Do you want to exceed 650 rwhp? If not, go twin screw. If you do, and you want to keep the car for a long time, invest in the turbo kit. Either way, you will not be sorry. .....Oh, and by the way, my Whipple 2.3 is going on as we speak. :thumbsup:
 

speedofsound

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harrij081266 said:
but when I saw some of the races between a KB and TT on YouTube, there was no doubt which system was the strongest.

that same race is what made me go TT. I have mixed feelings right now because there are still issues that I need to clear up to make it strong and up the boost (oil blow-by for example). I have the HP 57mm kit and nothing beats the sleeper-factor. NO ONE at car shows/drive-ins know what I have. I painted the blow-off valves and intercooler black so they blend in with the radiator and all my stock tubing for the shaker is still there. I am currently at the $15k mark for the build (built motor, turbo kit, other crap). If and when I ever get tired of this, I'm going Whipple.

I hope that jumbo I just typed helped you a little :beer:
 

Sonic605hp

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harrij081266 said:
I am at a loss :??: with all of the reading I am doing here. The KB system will run me about $6,300 fully installed, but I read a post where a guy changed from his KB within four months to upgrade to a Twin Turbo System. This isn't something I want to do. Can anyone provide me with pros and cons of the KB vs. a TT system (maintenance problems, durability, etc). And who would you recommend for the TT if that is your recommendation? I have recently come across Hellion's website, but don't know of any other. Additionally, if you have a TT would you give me some idea of the expense to get the system...

Thanks for the advice in advance!

If you want big #'s go big twin screw.....the whipple 3.4 or kb 2.8 make HUGE numbers for much cheaper then turbos.......no doubt turbos are badass and if if you have the money go that way BUT if money is a concern i say BIG twin screw......my 2cents
 

hotrodstang

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speedofsound said:
that same race is what made me go TT. I have mixed feelings right now because there are still issues that I need to clear up to make it strong and up the boost (oil blow-by for example). I have the HP 57mm kit and nothing beats the sleeper-factor. NO ONE at car shows/drive-ins know what I have. I painted the blow-off valves and intercooler black so they blend in with the radiator and all my stock tubing for the shaker is still there. I am currently at the $15k mark for the build (built motor, turbo kit, other crap). If and when I ever get tired of this, I'm going Whipple.

I hope that jumbo I just typed helped you a little :beer:

I have done both! THe TT makes the most HP for sure but I had to spray it to got rid of turbo lag ! More maintance with turbos. I have tha big whipple 3.3 on my new Shelby and I like it the best. If you do thr twins I recommend a electronic boost controller for sure-Greddy makes a nice one!:burnout:
 

bchris289

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speedofsound said:
that same race is what made me go TT. I have mixed feelings right now because there are still issues that I need to clear up to make it strong and up the boost (oil blow-by for example). I have the HP 57mm kit and nothing beats the sleeper-factor. NO ONE at car shows/drive-ins know what I have. I painted the blow-off valves and intercooler black so they blend in with the radiator and all my stock tubing for the shaker is still there. I am currently at the $15k mark for the build (built motor, turbo kit, other crap). If and when I ever get tired of this, I'm going Whipple.

I hope that jumbo I just typed helped you a little :beer:

Link?
 

GodStang

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Ok first off do you want to keep the stock engine? With aftermarket Twin screws many people are over 700rwhp and I am hoping to get near 800rwhp with my setup. My blower was $4K and it is polished. I thought about going with HPP twin turbo kit to get into the 1000rwhp stage but it would be around $15K-$20K for the setup. Really how much do you want to spend? Another reason I chose TS over T/TT was I HATE LAG!!
 

speedofsound

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2001SVTsnake

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well a kb for my car is 6,800

a tt for my car is 6,800

right off the bat i will need built engine for the tt. but with smaller pullies also need it with the kb

so i mise well go tt
 

speedofsound

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2001SVTsnake said:
well a kb for my car is 6,800

a tt for my car is 6,800

right off the bat i will need built engine for the tt. but with smaller pullies also need it with the kb

so i mise well go tt

don't forget labor for the TT if you aren't installing it yourself. I'm guessing they'd charge more for a TT kit than a twinscrew.
 

y2k2gt

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GodStang said:
Really how much do you want to spend? Another reason I chose TS over T/TT was I HATE LAG!!
This is a video showing how much lag my little 2v has trying to spool up two 60mm turbos with .63 exhaust housings. I have a C4 transmission with a really nice Neal Chance converter. The car has made 623rwhp with only 18psi.
th_May25_0001.jpg
 

yan88gt

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You didn't say what was your HP goal, and what you want to do with your car. If you want max HP turbo all the way and don't bother with spool up. Most KB cobra's i know cannot have traction under 50 mph so you should not worry with spool up. The turbo set up will not need big cam and ported heads to make big HP. Most KB cobra's over 700 rwhp have ported heads and/or cams so figure that in the total cost. It also depend on your budget, there's so many little parts needed for a turbo setup. My 5.0 turbo car was a PITA to built and there's like 2X more space with a 5.0 compare to a modular. But damn i missed that open downpipe turbo sound.
 

blownaltered

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do the 3.4 whipple, that will put you over 700 hp and be more reliable, there is more than one guy in my area with turbos and they never come out because they are always broke. The supercharged guys come out every weekend.
 

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