SonicRaT

iTrader: (6)

Isn't the camden centrifugal?

Liquid Anarchy

iTrader: (2)

Nope, it's roots.

RETed

No A/C.
No emissions.
No interior.
No audio system.
Yes, it had power windows.
It also has power steering.

With everything put back in and driver, it should be within 100 - 150 lbs. if your weight.

My point is that I dunno why some people think a (Kouki) FC turbo is a pig.
Unless you think 100 - 200 lbs. a significant weight difference on an almost 3000 lbs. chassis, we're talking a 3% to 7% weight difference.
I don't call that a significant difference in weight.

So please, get off your high horse about your NA being so light...


-Ted

digitalsolo

iTrader: (2)

I'd like to see what that kit could do with a real blower on it (Lysholm screw type). That might actually give the performance to merit the cost (assuming it was still 4K, which it wouldn't be with a Lysholm).

edit: And once again, 88IntegraLS shows he knows his stuff. Rarely do I hear it properly referred to as "aftercooled".

RETed

Sorry, the car was wrecked, and the chassis was junked.
So I can't get a pic of that particular car on the scales.


AC is like 35#.
PS is still installed - no excuse about it wasn't installed.
ALL Turbo II ran the aluminum spare, and with the tire the combo weighed around 30#.
That **** isn't that heavy.
I have most of those weights posted on my website.
Full interior and carpet cannot be more than 50# - 60#, unless you soaked the carpet with liquid prior to removal.
Sound deadening was not removed.
Exhaust is probably the most heaviest thing, but you're telling me you guys are running the original, stock exhaust system???


-Ted

Aaron Cake

iTrader: (1)

Not sure what you mean here...Most every supercharger (besides a turbosupercharger and a few of the legitimate electric units) run off of the engine.

A big V8 makes more power on equivelant boost (or less boost) because it's a BIG ENGINE. It simply has more displacement with which to work.

jon88se

I wonder how much my car weighs, here are the details of weight addition/removal:

-88 SE model-

-Removed all A/C
-Removed P/S
-Removed front bumper support
-Removed spare/jack
-Removed stock seats (replaced w/ 14lb Corbeau forzas)
-Removed air pump and ALL emissions
-Replaced stock exhaust w/ HKS downpipe, Apexi dual N1, custom racepipe
-Replaced stock flywheel w/ RB aluminum

-Added S4 TII motor w/ stock turbo
-Added GReddy FMIC
-Added mazdaspeed replica front lip
-Added S4 sport model rear spoiler
-Added Kamanari side skirts
-Added front/rear strut braces
-Added 17X7.5 rims w/ 215/45 front, 235/45 rear

I still have the four bolt hubs, NA tranny/rear and the SE model crank windows. I have the power sunroof as well...

Any ideas? The the 2400's would be nice hehe All I can say is the car is an ANIMAL @ 11psi w/ the walbro and rtek V1.5 on the stock turbo w/ ported wastegate.

j200pruf

iTrader: (4)

I would really like to see one of these SC kits with the webber style TB's like codeblue or codeblue2 has on their SC set-up, and add a intercooler to the mix, I think that could ofer a decent power gain over thier "stock"(couldn't think of a better word) kit.
Actually I just rememberd seeing a nifty water to air intercooler that was used in a miata SC kit, that would definatly be better than just running the SC into the engine.

snub disphenoid

Yeah, I know, that's exactly what I said. Because a supercharger derives its power from the engine, larger engines with more torque generally see higher gains at comparable boost levels.

snub disphenoid

I haven't seen many roots-type superchargers aftercooled, mainly because it's damn near impossible to work it into the system. Centrifugal superchargers are the ones that benefit more from aftercooling.

snub disphenoid

When was I on it? You said your TII weighed as little as it did, and I wanted to know why. Jesus, you just want to argue or something? Are you that bored?

digitalsolo

iTrader: (2)

Here are a couple of reference shots of my aftercooler setup on my other car (~400 HP Pontiac GTP). It really wouldn't be hard to fab up on an RX7, as you're already doing custom fabbing anyway. If you seriously wanted one, let me know, and I can give you some help.

snub disphenoid

That's awesome, maybe I'll contact you in a few month if I get bored or frustrated with a lack of power.

SonicRaT

iTrader: (6)

Are you using braided lines with AN fittings for your IC plumbing?

RETed

Do you have a problem remembering what you wrote?

Post #8...

You car isn't a "lot" lighter than a TII.
That's why I told you to get off your high horse, cause you have this misconception that your car is significantly lighter than a TII, which it is not.
I don't consider something that is not even 10% lighter to be a "lot lighter".


-Ted

ddub

This thread is so stupid.

And snub, I agree with Ted, you were the one bringing up the fact that your n/a was "a lot lighter" and he was just trying to show you how you were overexagerating. You seem to be getting way to bent out of shape about this crap. It's your money, your car, your decision, so why ******* care if other people thing you're stupid or you shouldn't do it? Do whatever the **** you want...

JonEQuest

A SC is a great way to overspend on power on an old car, for $4000 you could BUY a whole turbo car then sell your NA and buy enough goodies to kill anything on the street.

rotaryracer1

iTrader: (1)

i also agree that the price is a big thing to deal with. i my self am also interested in the S/C kit for N/A. i say go for it and you will be happy with it.

88IntegraLS

Now you're talking. Screw compressors can use air/air intercoolers like turbos. The Kenne Bell kit for the Miata uses an fmic I believe, and makes those little roadsters faster than if a V8 were dropped in . . I wonder what it would do for an FC NA.

If Aaron Cake didn't break his na driveline with his turbo project, that's good news.

88IntegraLS

My NA weighs under 2400 lbs and it still has its interior, booya! Ur all portly, who's ur daddy!

j/k

Lighten up everyone.

SonicRaT

iTrader: (6)

Which is what I'll be doing if this M90 doesn't get me to 300hp. Whipple 2300AX. That should take care of it.

88IntegraLS

If ur talking 300 bhp on stock ports, theoretically it would take two atmospheres (15 psi) of pressure at 0 intake temp rise to double the bhp of a stock S4 NA (150). If ur talking a good streetport making 200 bhp, then it should only take 1.5 atmospheres (7.5psi) assuming no temp rise. However, even with aftercooling there will be a few tens of degrees of intake temp rise, which dampens the boost effect so I'd bank on 9 psi on a well ported / exhausted NA if ur going to use some form of aftercooling. If no aftercooling will be used, be prepared to be as underwhelmed with ur power output as the buyers of certain $4k blower kits may soon become . .

As far as the whipple (my avatar) you can run a large fmic and get the charge density much higher than if u were using just a blower shoving hot air into an intake manifold, bwahaha.

digitalsolo

iTrader: (2)

No, heater hose. That's an air/water intercooler (aftercooler really). Similiar to what the Sy/Ty used.

Oh, and 88, don't forget, the ouput temperatures on the screw blowers will run massively cooler per given boost compared to a roots. Adiabatic efficiencies run massively higher across the board, and rival/exceed turbos when lag is factored in. Screwchargers rock. My uncle and I were discussing thier merits on his motorcycle (yes, on his motorcyle).

88IntegraLS

Oops I forgot the effects of compression ratio rise when inserting compressed air into an engine. Boost causes the effective compression ratio to rise and creates more efficient combustion, so I'll change my psi estimate to 8 psi with aftercooling on a good street ported NA engine with header, etc. if u want 300bhp, aka the power that TII ownerz get from maxing their stock compressor . .

RETed

That sounds expensive?



-Ted