Arun@Dasilvamotorsports

Anything with a Army Green paint job-means MOVE THE **** OVER!!!!!!!

bradenW

lol Marine Corps! What I was getting at is the turbo kit on my car could be removed and put in an otherwise stock C5 and turned down to be a nice little cruiser. Do that with ONE blower.

Turbo-Geist

What's wrong with Mexico? Oh, wait you want us to come to Canada, eh?

roadrage06

True, by adding the above, I am close to the cost of a TT it. But all above factors are in unison. Discussing one without the others is like taking a quote out of context.

I can do most of the above before I even get a supercharger and don't have to take them off when I do so the cost is spread out. I'm impatient and like to have a project each year, which is why this route is more practical than saving twice as long for a TT kit.

Also, if I were to go to 700hp, both the TT kit and Supercharger kit would need some other parts replaced adding money to BOTH bottom lines -- meaning, again, the supercharger would still either break even or be cheaper than the TT kit.

Then again, if I found myself financially able to upgrade to more than a stock block, I think I would be shooting for far more than 700 and the price difference by that point would be negligible, ie - when you spend 10 dollars, a difference of 5 bucks is great. But when you're spending 10,000, even 3,000 is marginal, especially if there's financing involved.

Turbo-Geist

I'm not quite following the need for changing the stock block. I started out at 500 rwhp with the TTiX kit. I'm now at 750+rwhp and still using the same turbos and stock block.

roadrage06

Sorry, wrong terminology I suppose. You've probably changed out some of the internals, though, no?

If not, that's impressive. Everything I've read says after 600, bottom-end should be changed.

Kind of off topic, though, because, as I conceded earlier, this is my pre-purchased opinion. I do not have either at this point -- all cubes here (stock 346 at that).

I was merely stating my opinion on how to go about deciding using myself as an example along with the conclusions I came to while making that decision. So, yes, some of my facts may be off. But taking all of my itemized criteria into consideration as a whole, not individually out of context, I think I described pretty well why that was the best choice for me.

Adapting my criteria and answering the questions for yourself and inputting your own research is what will vary the results. I was just trying to show the type of mundane considerations that are required because of how similar both roads are.

inspector12

Mexico is the only place that counts lol! Come on Arun I'm not knocking Centri's they work. But your trying to generalize every turbo setup by saying they peak early and thats not true at all. Sure there are some guys that put mismatched parts on cars and they peak early, but I can show you graph's of centri cars that do the same thing. And trust me when I tell you that I have hurt a few Centri's feeling in this TT car of mine.

Its Bruce

Shhhh, TG hasn't read that yet.

bradenW

Yep. I remember a time not but a few years ago when almost everyone (on here) that had a centri had some baby cam and it peaked between 5-6K. I think Arun showed CF members the light on that deal.

Arun@Dasilvamotorsports

The peaking at 6k was a joke-honestly. But the blower cars that are peaking at 6k are wasting useable power by overspinning them.

I think they were trying to copy the earlier TTix graphs

But then again-all that torque-but why? Spinning ain't winning!

And for everyone who think's I am anti-turbo, I actually got quotes to get a TTix kit for my car-when they said I couldn't copy the power curve of the centri-I gave up.

roadrage06

Haha, wow, that is impressive. I thought I had seen there were a few on here still pushing the stock internals.

I think when the time comes I am going to chalk that up as the exception, not the rule, though.

I've read enough literature by guys who build racecars that make me leary of testing that threshold.

topdown01

Wow, this is outstanding! Thank you do much for this...the points are well thought out and will help me. I contacted A&A to learn more about their offerings. Like you, I have limitations on funding so I would like to make a wise choice that will get me somewhere around 600 hp.

roadrage06

No problem. As I said to the more experienced posters above, my research is by no means conclusive, but I think the questions/criteria is universal. The kits really are 6 of one; half-dozen of another. So, you're going to have to get picky, perhaps even trivial (like the sound it makes).

Another thing that helped in the mundane details was YouTube videos. Watch vids of different setups. The one that brings the biggest smile to your face should ultimately be your decision -- smile factor is even more important than HP and $ figures. I think that's something anyone on here will tell you.

0CK@UPPCOS

We'll that would have to depend on the tune! I can tune 8psi conservatively and create 500 hp, or 8psi on the ragged edge with meth ~650hp.

Here on earth the laws of physics are in place, and the laws of physics state that it takes energy to create motion! SC's steel 17-19% on average, where as turbos are 2-3% parasitic loss due to the added back pressure. To put it in perspective, it takes ~900hp just to spin the SC on a top fuel drag car....

So pretty much no matter how you do the math:
(HP from boost)-(HP lost driving SC) < (HP from Boost)

I understand you sell SC's and I understand you want to make a sale....but if you're going to bash TT, at least do it honestly! Like "TT's have LAG!!" .....



CK

Arun@Dasilvamotorsports

Dude, I'm not here trying to sell anything-infact we sell Turbo kits too-we may have Viper coming here shortly for a turbo install.

So blower rob's power from the crank and the turbo doesn't rob anything by sticking it in the exhaust?

Show me a 8psi graph and i'll show you one-no meth-then we can compare.

bradenW

Anyone tried brake boosting a blower car? lol Solves the lag problem in Mexico. The spinning isn't winning/turbos make un-useable torque is kind of a silly concept to me. If your suspension and tire isn't set up to handle the power you are making regardless of what you are making it with, your car is NOT COMPLETE. Instead of recommending someone make less power, recommend they properly set up their car to handle the power made. The car is safer that way as well..

Turbo-Geist

I know you're not anti-turbo, but I wish you would have mentioned this before. We can make a turbo deliver a power curve just like a supercharger if that's all that is holding you back. And it makes much more sense to do it this way than trying to wastegate a blower to make it have a graph like a turbo.





Thanks. Yes, it's a stock longblock except for the ls6 intake and aftermarket cam. The 750 was with the stock cam. Can you post any links to the literature from racecar builders that makes you worry about pushing one this hard?

user_name

Like this? Normally turbos aren't spooled until 4300 or so on my little 347.



Also notice less boost at 60 than those higher speeds. I needed that to keep traction. I'm also making way more power per psi(about 26) on the TT than when I had a blower(17-19). They are simply more efficient. Not sure how anybody thinks they can argue that. Look at the paxton vipers vs the TT. Look at the fact you can make more power on any given injector with turbos than a blower. Less parasitic loss. More power for any given fuel as well.

The only downside is packaging and the available kits out there on these cars. You end up having to sacrifice a lot to fit good components. The blower mostly just takes up empty space. Other cars there is no question which is better. The higher hp vettes are spending within 20% of the cost of a custom kit from a good fabricator I would say.

Z06-TT

yeah. i was getting at you will have to push more boost to get power out of supercharger comparied to turbo.

we made 816/843 on 8.5 PSI on a our twin kit.

looking at most 5-7K supercharger kits. you are dead by 700-800 horse. unless you upgrade to a bigger blower

Z06-TT

i know of 3 kits for the vettes that will support 1000 WHEEL and nothing in the kit needs replaced. and one kit that supports 1200 WHEEL.



that count.

show me an 8psi blower kit that is using an orginal kit supercharger that can do that??