boost vs NA vs webber vs nikki
08-25-08, 10:47 PM
#1
Shinigami
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boost vs NA vs webber vs nikki
Ok, I've searched and read until I actually have a headache.
The types of of use for my car are drift days & Action X/touge type stuff. Nothing over 90mph and low rpm response is real important
I want those sweet looking vertical webbers but I'm also practial, maby a turbo nikki will do the trick.
1. any drifters using na or turbo webbers and what do you think of them?
2. is there a seperate motor/trans/diff for the 1st gens like there is for the 2nd gens?
3. has anybody turboed a 12a motor/trans/diff and what happend.
4. Pics of turbo webber setup?
5. point me to a thread that will clearly explain pass thru, blow thru, etc....
The types of of use for my car are drift days & Action X/touge type stuff. Nothing over 90mph and low rpm response is real important
I want those sweet looking vertical webbers but I'm also practial, maby a turbo nikki will do the trick.
1. any drifters using na or turbo webbers and what do you think of them?
2. is there a seperate motor/trans/diff for the 1st gens like there is for the 2nd gens?
3. has anybody turboed a 12a motor/trans/diff and what happend.
4. Pics of turbo webber setup?
5. point me to a thread that will clearly explain pass thru, blow thru, etc....
08-25-08, 11:01 PM
#3
I am a Weber man myself, so I am biased towards them. Never seen one in person turbo'd, but I have seen a nikki turbo'd with a S4 TII turbo. Real nice power and very streetable. With this, I will have to say:
1. Nikki all the way. Cost is cheaper than getting a new manifold and carburetor, and drivability will be better.
2. Not quite sure what you are meaning with this question. Stock first gens, there were the 12a's, 13b in the -SE, and non-north american 12aT's. As far as engine SWAPS go, Sky's the limit for what you put in. Generally there is a 2nd gen TII engine put in. Some have gone 3rd gen REW.
Transmissions: Not much in the 1st gens that you would call a "upgrade". 2nd gen transmissions are used here, the NA versions for the taller 5th for better gas mileage, and the TII transmission for the power hungry that want a trans that can handle power. A custom driveshaft is required here.
Rear ends: You only have LSD and Non LSD. You would want the LSD version, from an 84-85 GSL preferably, as they have bigger axles (compared to 81 to mid 83 cars) and wider teeth (than the -SE). Again, for the power hungry, many go with the Hilux (Tundra) rear end or the Ford 8.8 or 9 inch.
3. Like above, I personally have not, but have been around those that have. It will take the abuse, as long as you don't drag launch at high RPMS every stop light. Driven "spirited" and it will last, driven like a kid who just passed his drivers test, it will not.
4. https://www.rx7club.com/search.php?searchid=5876026
5. You will want to look at the turbo section of RX7Club, and also pick up a copy of Corky Bells book on turboing.
1. Nikki all the way. Cost is cheaper than getting a new manifold and carburetor, and drivability will be better.
2. Not quite sure what you are meaning with this question. Stock first gens, there were the 12a's, 13b in the -SE, and non-north american 12aT's. As far as engine SWAPS go, Sky's the limit for what you put in. Generally there is a 2nd gen TII engine put in. Some have gone 3rd gen REW.
Transmissions: Not much in the 1st gens that you would call a "upgrade". 2nd gen transmissions are used here, the NA versions for the taller 5th for better gas mileage, and the TII transmission for the power hungry that want a trans that can handle power. A custom driveshaft is required here.
Rear ends: You only have LSD and Non LSD. You would want the LSD version, from an 84-85 GSL preferably, as they have bigger axles (compared to 81 to mid 83 cars) and wider teeth (than the -SE). Again, for the power hungry, many go with the Hilux (Tundra) rear end or the Ford 8.8 or 9 inch.
3. Like above, I personally have not, but have been around those that have. It will take the abuse, as long as you don't drag launch at high RPMS every stop light. Driven "spirited" and it will last, driven like a kid who just passed his drivers test, it will not.
4. https://www.rx7club.com/search.php?searchid=5876026
5. You will want to look at the turbo section of RX7Club, and also pick up a copy of Corky Bells book on turboing.
08-25-08, 11:03 PM
#4
Also, I remember typing a passage from his book, found the post for you:
https://www.rx7club.com/showpost.php...5&postcount=10
In this thread:
https://www.rx7club.com/showthread.p...ght=corky+bell
https://www.rx7club.com/showpost.php...5&postcount=10
In this thread:
https://www.rx7club.com/showthread.p...ght=corky+bell
08-25-08, 11:08 PM
#5
to answer your questions
1. i'm not a drifter :P
2. there are 12a turbo options but those are in japan only lol, tranny's are all the same but you can put a 13b tranny with a longer fifth gear in a 12a, diff. well it depends on your car model, if it's got 4 disk brakes it's got lsd.
3. there are lots of turboed carbed. 12a's use the keywords "turbo 12a" or "12 turbo" on the search function.
4. goes with the previous answer, lots of set ups, just read through some of the build threads they're awesome, i personally like bad83's nikki turbo setup, with that said, there are some that are probably better and have more boost, but his set up is simple and it looks great. imo.
5. http://forums.streetfire.net/showthread.php?t=16785 that's one of many found by googleing.
I'm planning on boosting my engine, but of course gotta get the money first and rebuild my engine cuz it's got 130k, with that said, i keep going over member's build threads and such learning more about setups, there are way too many, i've also been learning more about turbo's and what not, been googleing a lot....from what i've found from friends and reading and stuff is that you wanna make sure and take your time and not just do it because you wanna finish it soon, make sure every single detail is like you planned so you have hardly any regrets
, anyways, good luck on your project.
1. i'm not a drifter :P
2. there are 12a turbo options but those are in japan only lol, tranny's are all the same but you can put a 13b tranny with a longer fifth gear in a 12a, diff. well it depends on your car model, if it's got 4 disk brakes it's got lsd.
3. there are lots of turboed carbed. 12a's use the keywords "turbo 12a" or "12 turbo" on the search function.
4. goes with the previous answer, lots of set ups, just read through some of the build threads they're awesome, i personally like bad83's nikki turbo setup, with that said, there are some that are probably better and have more boost, but his set up is simple and it looks great. imo.
5. http://forums.streetfire.net/showthread.php?t=16785 that's one of many found by googleing.
I'm planning on boosting my engine, but of course gotta get the money first and rebuild my engine cuz it's got 130k, with that said, i keep going over member's build threads and such learning more about setups, there are way too many, i've also been learning more about turbo's and what not, been googleing a lot....from what i've found from friends and reading and stuff is that you wanna make sure and take your time and not just do it because you wanna finish it soon, make sure every single detail is like you planned so you have hardly any regrets
, anyways, good luck on your project.
08-26-08, 12:16 AM
#6
Shinigami
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Thx for the info guys. It looks like I'm shooting for about 8psi.
But I'm still split on the vert webbers, I really like the look. The NA webber sa22c keiichi drove on youtube looks like it will give great action X times but the drift day high banked big oval is what worrys me. Then again maby crazy entrance speeds will solve that problem.
Thx again, its gonna be a busy winter for me. but you just made it a little easier
But I'm still split on the vert webbers, I really like the look. The NA webber sa22c keiichi drove on youtube looks like it will give great action X times but the drift day high banked big oval is what worrys me. Then again maby crazy entrance speeds will solve that problem.
Thx again, its gonna be a busy winter for me. but you just made it a little easier
08-26-08, 06:35 AM
#7
Lives on the Forum
What is action X? Do you mean Auto X?
If so, then you will want to be aware of what is allowed in your class, or what class you will be bumped up to if you add the wrong part. If you turbo your car, then you'll end up in a class where pretty much anything is allowed, racing against the toughest cars out there. Unless your car is the best prepared full on racing rx7 out there, you will get eaten alive every time.
If you don't want to turbo, then the best way to keep low rpm response and power is going to be with the Sterling Nikki. He modifies the carb to flow much better than stock, but still maintains high velocity at low idle which means better response. This option will also cost far less than just about any other option because you don't need a new intake manifold to go with it.
Check out my videos when you get time, and you will get some idea of the performance of a Sterling. All of them are on a stock port worn out 12a motor, but I've never lost a race due to a lack of power.
.
If so, then you will want to be aware of what is allowed in your class, or what class you will be bumped up to if you add the wrong part. If you turbo your car, then you'll end up in a class where pretty much anything is allowed, racing against the toughest cars out there. Unless your car is the best prepared full on racing rx7 out there, you will get eaten alive every time.
If you don't want to turbo, then the best way to keep low rpm response and power is going to be with the Sterling Nikki. He modifies the carb to flow much better than stock, but still maintains high velocity at low idle which means better response. This option will also cost far less than just about any other option because you don't need a new intake manifold to go with it.
Check out my videos when you get time, and you will get some idea of the performance of a Sterling. All of them are on a stock port worn out 12a motor, but I've never lost a race due to a lack of power.
.
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08-26-08, 07:58 AM
#8
Shinigami
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Nice vids. it looks like there was a performance difference between the time the stock wheel and the black ones. I do see the carb perfomance difference, is your sterling non-turbo? I couldnt hear the spool so I dont think so but I'm not sure
08-26-08, 10:24 AM
#9
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Thanks. My car is not turbo, just a stock 12a with the Sterling and a RB exhaust.
The black wheels are a slightly smaller diameter, so it is a bit quicker. The sticky race rubber on them helps a bit too.
The responsiveness of the Sterling is what I like the most. In the rain, that is what really made the difference. Until the lot dried up later in the day, I had the fastest time of the day even against the Subarus and a lot of other much more powerful cars. If I had to fight with a finicky carb, I never could have driven smoothly enough to do that...
The black wheels are a slightly smaller diameter, so it is a bit quicker. The sticky race rubber on them helps a bit too.
The responsiveness of the Sterling is what I like the most. In the rain, that is what really made the difference. Until the lot dried up later in the day, I had the fastest time of the day even against the Subarus and a lot of other much more powerful cars. If I had to fight with a finicky carb, I never could have driven smoothly enough to do that...
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