Digi7ech

iTrader: (1)

I just read about the super chargers. I would like to get one but right now they are expensive and under developed.

I don't want to switch to carb and so far the Atkins one is Carb only. The other one with paxton seems to be under developed. I read that the pulleys over drive the s/c after something like 5k RPM.

I would like to see a well built kit for fuel injected 13b's that isn't too expensive.

The one advantage that they have over turbo's is that you don't have to wait for it to spool like you do on turbos. It may not have the potential but it is still a way to get a good 50-60 hp.

If anyone knows of a good s/c system which is tested and put together well pls msg me with a link or info.

von

SC sounds risky and expensive...In my opinion I think buying a stock t11 turbo and slaping it on a 6 port is the BEST HP/Doller you can get and theirs awsome write ups by Mazdaspeed7 and Aron Cake. Of course its a project and you either have to have mechanical knowledge or have at least taken your entire intake manfold off before. This will be the way im going.

von

oh and I dont think mazdaspeed7 was the one who did the conversion it was bambam7. Sorry

88 vert

I recently purchased the nelson/paxton kit (used),its pricey and still alot of work to do it right and safe i opted for the s/c because i have a vert and everyone knows how slow that can be,I was going turbo i had a spare 87TII i was going to use for the swap,but lack of knowledge of the turbo and the reliability,it didnt happen.Im installing the s/c on my vert with 146,000 will it last???(i doubt it) but dont just think a s/c kit is just a bolt on process it takes lots of $$$$,tuning,FPR,injectors,fuel pump,and in my case probably a new motor+the price of the s/c kit...

gen2ForCe

TUrbO power:-D

Nimisys

if i were to S/C my vert i would go roots style and not centrifical. centrifical has exponintial boost curves like a turbo and also has spool time as well, (as long as, if not more than a turbo), but with the parasetic HP loss of being belt driven. they really are the worst of both worlds. their saving grace is the fact they are easier to intercool and relativly easier to install than a roots style blower.

a roots blower however will provide boost downlow in a linear fashion but are more difficult to intercool, but not impossible. they also weigh more and require more power to run. along with the fact that the throttle body and MAF have to come before the blower requiring a relocation of them as well.

1987RX7guy

iTrader: (3)

no!!!!!!!!!!!!!!!!!!!!!!!!

unless I buy a TII hehe

Detriuch

iTrader: (1)

whipple charges. hmm dont that just sound nice. i would be down for one!!

Rotormax_4169

HELL YEAH

sunshine

iTrader: (3)

I'd buy one - just to be different...ummm....also.

mrmasda

I started with a carb so the Atkins was the most bang for the buck I've done for my ride. Yes turbo makes more horses but also you have to know what you are doing and it is alot more expensive at least for me. We all suffer from low torque and the s/c really helps down low. Atkins will have a booth at Rotorfest in Gainesville and I for one will look him up and thank him if for nothing else than giving us rotorheads another choice in the aftermarket. Not an ad I have never met the man. Gordon

TM7DIME

I've always been a force-fed induction guy myself, but recently went NA/Carb'd. Supercharger......hmmm....I might if the price was right and it wasn't a "Roots or screw" type blower.

Psychoblue23

I do but with a totally diff car. I want one of each.

- James

nillahcaz

iTrader: (2)

I think its funny most of you are saying how turbos are better. THERE IS NO BETTER. to convert a na to turbo it would cost 2 to 3 times more than gitting a sc. and here is some food for thought 90% of all topfuel drag rails that run in the 6 zone are twin screw

Drifter101

I would for sure buy one, no doubt about it but in my opinion on the whole "fast car" thing its more about the torque than the ponies you put to the ground

rx7 adict

anyone ever think of trying a turbo + s/c

PPC-Racing

the power curve of a SC is better suited to a street ported NA, the right setup will give you the low end power that is lost by intake porting and street porting.. However a twinscrew, 3 lobe, is the least effcient SC to use , the charge air efficientcy is @ 65% where a modern impeller is @ 75% or higher so at 8 psi you may have a charge air temp difference of +50 degrees F on the twin screw, a vortec style in place of the air pump leaves you with the same losses you had OEM but you can run an IC to gain some more volumetric efficientcy.

I like the idea of a good SC over a turbo, the power curves for both the rotary NA and the SC compliment each other.

RX7_ZRO

hmmm....would vote if I actually knew anything on the subject, lol

Phu5ion

Is anything ever going to come of this thread? If not, please just let it die.

skydivr73

OK---here's the thing. First, from what i see on here, the "average" 7 owner isn't in the position to compare financially to a RACE TEAM that can spend OVER $30K on each engine....not to mention that your average top fuel rail puts out over 7000 hp!! In simple terms, we all want our 7s to be fast, tight, AND affordable. For what most of us are going to use the cars for, does it really make much sense to spend $3-4K to get a hp increase when you can get a similar or better increase for less with turbos?? Besides, I have done all kinds of engine swaps using 350 V8s...Fieros, Monte Carlos, etc. Not sure if I can see spending that kinda dough for a mod that by its own nature limits its effectiveness, cuz I can spend a few K and put in a new engine for most cars!!

The Atkins people tell me that their sc is ONLY for carbs, so unless you wanna toss out your EFI, not possible. They are working on one for EFI, but the earliest they say it will be available is 6 months from now. As for costing 2 to 3 times as much to go turbo, I would like to hear from all the people out there who have done the swap so they can tell us all how they just spent $9k to get it done! I find turbos all day long on eBay for a few hundred bucks.
I think we all could use an increase down low, but my money is on the high revs...after all, we all can safely go where no one else can on the tach, so why not use it?? Everyone says that 7s run better when you excercise them anyway....

nillahcaz

iTrader: (2)

ok... get the turbo from ebay and weld it to the stock manafold and tell me how well it works . you need a lot more than just a turbo to do a swap, and the price would be over the $2195 for a 5" or $2395 for the 7" or $1975 for the centrifugal setup. plus $425 for a new fule pump and regulater but you would need that for the turbo swap as wel. for every advantige a turbo has there is one for a SC so just let it die...

Mykl

Superchargers are too expensive to be cost effective on n/a FC's anymore.

You're better off sourcing the parts to do a 13BT swap, it takes no more work.

Roy James

amen.

silverFC

plus mazda made it turbo charged why change a great thing,just think if you have a t2 why would you want a n/a rx7 to supercharge.... get a t2 motor think most s/c kits are $1500 - 2500 how much is a j spec engine or a o.k. t2 i dont know im crazy

nillahcaz

iTrader: (2)

you also need the ECU and need to rewire some parts, its not bolt in and drive. plus its something different. why do most people like the rx7??? its different.