Killer 91 NA
#26
Driveline Killer
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Originally Posted by dDuB
I'm getting sick of people thinking carb is going to give you more HP than FI... FI is superior to carb when both are tuned properly, always, period.
It's not that it's better it's just cheaper and quicker to do. No computer to mess with for the entry level guy.
#27
Driveline Killer
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Originally Posted by dDuB
He's talking about the balance of weight from front to back. Stock we have almost 50/50 weight distribution, a 20B would throw that off INCREDIBLY.
#28
Driveline Killer
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dan I had dual exhaust on my 88 GTU. It was RB road race headers, hand made duals feeding two Trust/greddy straight through racing mufflers, anyway that's what they said on them, and it all only cost about $650
#29
Rotary Enthusiast
Originally Posted by 1987RX7guy
actually it doesn't work like that boys. The 20B is 3 rotors not 2 like any 13B. That is a completly different weight you need to use.
Santiago
ps- and the weight distro is also going to change.
Santiago
ps- and the weight distro is also going to change.
Santiago, you need to do study up on your 20B's. The rotors from 1989 to 2002 are the same weight. 9.54 lbs. You could run any rotors you want in a 20B. They just have to all be the same.
#30
Eat Rice Don't Drive it.
iTrader: (3)
Originally Posted by wozzoom
Bullsh!t.
Santiago, you need to do study up on your 20B's. The rotors from 1989 to 2002 are the same weight. 9.54 lbs. You could run any rotors you want in a 20B. They just have to all be the same.
Santiago, you need to do study up on your 20B's. The rotors from 1989 to 2002 are the same weight. 9.54 lbs. You could run any rotors you want in a 20B. They just have to all be the same.
I could have sworn REted told me otherwise. And it makes perfect sense. 3 rotors and a 20B e-shaft will not have the same weight as 2 rotors and a 13b e-shaft.
EDIT not to mention their rotating forces need to be ballanced differently as they don't have the same positioning as two rotors/e-shaft.
#31
I wish I was driving!
Originally Posted by 1987RX7guy
I could have sworn REted told me otherwise. And it makes perfect sense. 3 rotors and a 20B e-shaft will not have the same weight as 2 rotors and a 13b e-shaft.
EDIT not to mention their rotating forces need to be ballanced differently as they don't have the same positioning as two rotors/e-shaft.
EDIT not to mention their rotating forces need to be ballanced differently as they don't have the same positioning as two rotors/e-shaft.
If you replaced the 9.0:1 compression rotors with 9.7:1 rotors, which had the same weight, the total reciprocating balance would be the same.
Of course you could not use the counterweights from a 2 rotor on a 3 rotor.
I have an idea: Instead of parrotting information from Ted, how about you only post information that you actually understand?
#32
Eat Rice Don't Drive it.
iTrader: (3)
Well since we(me and Ted) had an actual discussion about some of these things from one person to another not just me quoting him like a mindless moron( I know some people thing I am anyways...) I don't think i'm parroting it. I actually thought the 9.7 cr rotors were a different weight from 9.0's anyways i'll check all that crap out later.
Santiago
Santiago
#33
I wish I was driving!
Originally Posted by 1987RX7guy
ps- and the weight distro is also going to change.
Does removing the power steering and air conditioning from a car, which also has a mass of 80 lbs, significantly affect the overall feeling of the car with regards to balance?
No.
Have you ever even seen a 20B in person, let alone worked/driven a vehicle equipped with one?
#34
Eat Rice Don't Drive it.
iTrader: (3)
Originally Posted by scathcart
The difference in weight between a 20B engine and a TII engine is 80 lbs.
Does removing the power steering and air conditioning from a car, which also has a mass of 80 lbs, significantly affect the overall feeling of the car with regards to balance?
No.
Have you ever even seen a 20B in person, let alone worked/driven a vehicle equipped with one?
Does removing the power steering and air conditioning from a car, which also has a mass of 80 lbs, significantly affect the overall feeling of the car with regards to balance?
No.
Have you ever even seen a 20B in person, let alone worked/driven a vehicle equipped with one?
I didn't say what other said about it being drastic. And yes removing other crap obviously changes the distro of weight. Who pissed in your cheere-o's? Wait.. was it my nuke canada post in DoO?
#35
I wish I was driving!
Originally Posted by 1987RX7guy
Well since we(me and Ted) had an actual discussion about some of these things from one person to another not just me quoting him like a mindless moron( I know some people thing I am anyways...) I don't think i'm parroting it. I actually thought the 9.7 cr rotors were a different weight from 9.0's anyways i'll check all that crap out later.
Santiago
Santiago
Again, you're repeating what you were told, not what you understand.
#36
I wish I was driving!
Originally Posted by 1987RX7guy
I didn't say what other said about it being drastic. And yes removing other crap obviously changes the distro of weight. Who pissed in your cheere-o's? Wait.. was it my nuke canada post in DoO?
I'm tired of your arguments based out of nescience.
A perfect example is your true dual argument. You have no idea what you're talking about. Anyone with any education whatsoever knows why.
#37
Eat Rice Don't Drive it.
iTrader: (3)
Originally Posted by scathcart
I'm tired of your arguments based out of nescience.
A perfect example is your true dual argument. You have no idea what you're talking about. Anyone with any education whatsoever knows why.
A perfect example is your true dual argument. You have no idea what you're talking about. Anyone with any education whatsoever knows why.
Come on that is seriously over exagerating.
And I think I conceded to MS7 a while back given it is a properly built and designed exhaust it would be supperior but how many aftermarket "bolt-on" exhausts are made like that? Honestly.....
#38
I wish I was driving!
Originally Posted by 1987RX7guy
Any education??
Come on that is seriously over exagerating.
And I think I conceded to MS7 a while back given it is a properly built and designed exhaust it would be supperior but how many aftermarket "bolt-on" exhausts are made like that? Honestly.....
Come on that is seriously over exagerating.
And I think I conceded to MS7 a while back given it is a properly built and designed exhaust it would be supperior but how many aftermarket "bolt-on" exhausts are made like that? Honestly.....
#39
Jesus is the Messiah
You can move other stuff around (Spare tire, Battery, washer bottles, remove stuff, add stuff, whatever) to regain your weight ratio. If you've got 20B $ you certainly have enough $ to recover your ratio with CF/Aluminum parts
#43
Letting the Smoke Out!
Join Date: Jul 2004
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The phiscal 20b rotor is the same as the S5+ turbo rotors. They might even be the same part number for the 13b turbo's and the 20b. You would reuse the 20b counter weights. I think the s5 n/a rotors are heavier though then the turbo rotors. As they have higher compression ala more metal. But, if you can use tII counter weights with N/a rotors I don't see why the n/a rotors can't be used with a 20b. Unless when you change to N/A rotors you have to use the n/a e-shaft. Then my plan would be blow to hell. Because you would have to rebalance the e-shaft for the 20b.
Adam
Adam
Originally Posted by 1987RX7guy
I could have sworn REted told me otherwise. And it makes perfect sense. 3 rotors and a 20B e-shaft will not have the same weight as 2 rotors and a 13b e-shaft.
EDIT not to mention their rotating forces need to be ballanced differently as they don't have the same positioning as two rotors/e-shaft.
EDIT not to mention their rotating forces need to be ballanced differently as they don't have the same positioning as two rotors/e-shaft.
#44
I wish I was driving!
Originally Posted by Kingofl337
The phiscal 20b rotor is the same as the S5+ turbo rotors. They might even be the same part number for the 13b turbo's and the 20b. You would reuse the 20b counter weights. I think the s5 n/a rotors are heavier though then the turbo rotors. As they have higher compression ala more metal. But, if you can use tII counter weights with N/a rotors I don't see why the n/a rotors can't be used with a 20b. Unless when you change to N/A rotors you have to use the n/a e-shaft. Then my plan would be blow to hell. Because you would have to rebalance the e-shaft for the 20b.
Adam
Adam
The e-shaft was pretty muchy identical among the 13B's, so it would not have to be changed or rebalanced either.
#45
Senior Member
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Originally Posted by KarmaWeasel
You can make a N/A just as fast as a TurboII, if not faster, it just takes a lot of time, money, and patience which are things most people don't have or are short on. Browse around the 2nd gen specific section of the forum, I'm sure you can find some information on what you're looking for.
BTW, I hate you for having that true dual exaust, I want one so bad.
BTW, I hate you for having that true dual exaust, I want one so bad.
um i love my n/a's i've had 4, and i am currently biulding one up.
that being said look at my sig.
nearly stock with no weight reduction.
#48
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Thanks for the ideas. I want to keep it streetable (in the sense that I don't get caught!) and not quite ready to do a motor swap. I would like to have about 200 rwhp and I basically willing to throw quite a bit of money and time at her.
I've heard good things about E6X from Haltech and Microtech systems. Any other ems's out there for 7's? Which one is the best for an NA?
I've heard good things about E6X from Haltech and Microtech systems. Any other ems's out there for 7's? Which one is the best for an NA?
#49
Letting the Smoke Out!
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Really thats funny because my link here says you don't know what your talking about! I also don't think it would need to be balanced. But, you should do your homework before you open your trap!
Rotor Weights
Now shut the hell UP!
Rotor Weights
Now shut the hell UP!
Originally Posted by scathcart
S5 N/A rotors weigh the same as S5 TII rotors. If you read the above posts, you would know that.
The e-shaft was pretty muchy identical among the 13B's, so it would not have to be changed or rebalanced either.
The e-shaft was pretty muchy identical among the 13B's, so it would not have to be changed or rebalanced either.
#50
Lives on the Forum
Originally Posted by scathcart
Does removing the power steering and air conditioning from a car, which also has a mass of 80 lbs, significantly affect the overall feeling of the car with regards to balance?
No.
Have you ever even seen a 20B in person, let alone worked/driven a vehicle equipped with one?
No.
Have you ever even seen a 20B in person, let alone worked/driven a vehicle equipped with one?
We're trying to balance out our 20B FC track car, and it oversteers like a bitch with a 29mm front bar.
We're in the process of stepping up to the next size up - 31.5mm - just to get the cornering balance right.
Now, this is just a 20B with no turbos.
Having another 50 lbs. + if turbos, turbo exhaust manifold, and plumbing will make the oversteer even worse.
As for rotor weights...
Kouki FC3S non-turbo 9.7:1
Kouki FC3S turbo 9.0:1
Cosmo 13B and 20B turbo 9.0:1
FD3S turbo 9.0:1
...are all the same rotor weights.
Technically, you can swap them without worrying about the counterweights.
Sorry 1987RX7guy if I had told you something else, but the above should be accurate.
We made 232hp at the wheels on a DynoJet.
Haltech E6K + trio of stock leadings firing L and T at the same time for each rotor.
Engine is bone stock from TB to exhaust port.
Custom tube header
With a rebuild, I would be confident the engine would easily break 250hp.
With the 9.7:1 rotors, power would bump up another 10-20hp.
So with a big port + 9.7 rotors, it's a combo closing in on 300hp.
-Ted