12a turbo
 

Just wondering about info on turboing the 12a using the factory Nikki carb. I know this has been done, and I did a couple searches but I didn't find much. What I'd really like to know is what mods need to be done to the carb, if any, and kind of boost are people running? Any advice on fueling upgrades are also welcome. I'm not looking to make any serious power, I just want to know what's out there. Thanks in advance.

-Patrick

The carb needs to be boost prepped by someone who knows what they're doing.

Now the only people I trust with my nikki are Rx7Carl and Sterling. Unfortunately I don't know if they've perfected their boost prepping yet, you'd have to ask them.

The only person I know who has a boost prepped Nikki running a blowthrough turbo is 'FB II'. I think Robert did his. Either way if I were turboing on a stock carb, I'd have Rx7Carl/Sterling rebuild it first, *then* have it boost prepped.

Throwing a turbo directly onto a 20yr old carb and engine seems like a bad idea to me, and an apex seal waiting to blow. My main advice is to take the time and money to do it right. :)

Jon

For sure the floats need to be filled so they do not crush under boost. Also obviously, you need a carb hat.

There's one for sale in the first gen parts forum, from RotaryShack.

what all is needed to turbo a 12a?

Hey, look what I found in the for-sale section!

https://www.rx7club.com/showthread.php?t=507909

Jon

Stay away from that thread! That's mine! :)

Money and a rebuilt engine. Adding a turbo to a 30 year engine is like putting your grandma on a skateboard.

Whaht all is involved in boost prepping the carb? It is a fresh rebuild maybe 2000km ago. Car may be 28 years old, but it has less than 16000 original km's on the clock. I'm not looking to run anything over 5psi ... I have an Audi for that. :)

bump.

it is yours now, and its on the way!

680WHP do you know the steps needed to boost prep a nikki? If so plz email them to me at randokuky@hotmail.com

yup, and nope :)

man, this cheese spread is yummy

if you want to purchase a turbo prepped nikki please e mail me robert@rotaryshack.com

^^ Lol @ Robert. :) Thank you sir!

How much do boost prepped carbs go for

Thats fucking lame, so you wont tell anyone how to boost prep thier nikki so you can force them into buying one? Ill give you an envolpe, 2 jaw breakers, and a paper clip. gay

Him not giving out the info on how to do it is also a means to save you money by you messing up the process or something and having to go to him anyway. Atop of that, he's had quite a long time boost prepping to get it right.

I say send it to Robert, Rx7Carl, or Sterling. At least then you know that you are getting someone that has done more than one.

Well I have 2 carbs, Im sure other people than him can give pointers. Besides if the people who HAVE preped a nikki would post how/what they did then it dont see why the people who can do it on thier own would have trouble. I havent worked on a car this much ever, and i got the rats nest off just fine. the how to was great. a write up on boosting a nikki would also be great if the people would write one. but instead they force people into buying one for 100+ they spent a few hours doing.

Well the list has grown a bit, from what I have read you need to
Remove Choke/Emissions crap
2ndarys mod
stronger floats
Vent the floats
Acc Pump mod (In faq posted by stearling)
Rejet (I guess size depends on your set-up)

Ill search more and try and come up with the rest, then ill prep my own shit and do a write up for it so people dont have to buy something they dont want.

it maybe over 100 but just think what went into it all the mistake wasted nikki's to come up with a perfect tuneable and also awsome looking carbs hours they put into coming up with all that must have cost them time and effot

Oh im sure it did, but hold the how-to just to take money is dirty. Not many people turbo 12a's using the nikki carb, so its not like its a HUGE money making deal. But anyway ill sit with a few friends and fuck with it till it works then write a how-to and i wont charge a dime......

Maybe more would turbo a nikki carb if they knew how to prep em. This thread pops up at least twice a month. After all most of us are either to cheap or too poor so all they are really doing is allowing us to boost 12a's with a nikki and make some money on the side for their RX7 which I would hope anyone in there right mind would do the same. My 2 cents.

if you are going to spend time doing a turbo car might as well do it right. upgrading a vehicle with turbo takes money and effort so dont be a cheap ass and spend the extra 100 dollars and get one that will work properly. or go ahead do it yourself and blow the crap out of the motor. Get it right people pay for their ignorance , and ignorance = $ for those with knowledge.

^^^ dumbass, read my post I have 2 people that what worked with carbs for years. They just havent worked with the nikki, if fact I have already had them remove the choke, rejet to 465 (i think) they welded up the 2ndarys, Started the Acc pump mod going to finnish the rest tomrrow.


Me asking to do the shit myself isnt cheap you dumbass, Id rather save the $100 and if something goes wrong with the tuning and my motor blows, hey I have an extra 100 to spend. Id feel better know that I caused my motor to blow rather than paying a guy to take 45 min a throw shit around on my carb but forget to do 1 thin and he causes it to blow. If people would do a well wrtien write-up then thier should be any problem with how it works. Unless your a dumbass and cant follow directions.

Okay, hopefully in before the lock ...

I personally have no problem buying a boost prepped carb, except for the fact that I just had my Nikki rebuilt. Now that I'm here, and being the DIY'er that I am, I'm more than willing to buy the needed items ... I just do want to loose out on my current investment. I thought the purpose of forums and threads such as these were for enthusiasts that share a common interest to come together/help one another out. Now that you know where I'm at, give me a price on what I need to prep my rebuild and a little instruction. I guess that's yet another reason I'm really a VW/Audi guy at heart ... yeah that's just it, heart.

No one that knows how will help you bro, I have been asking for a few weeks and all i get is send it off. I too am a DIYer and just rebuilt my carb, I have everything I need for the turbo set-up but a preped carb. Im tryingto prep it with my dad and bro, Ill let you know what we did/used when i finnish if you havent already got one.

I can understand where 680whp is coming from i mean its a 100 loss for each that dont go thru him. but how many people wanna use nikkis? not many. the other 12a turbo guys already had a after market carb. maybe instead of sellign the carb you could sell a kit that has the how to and what you need. jets, floats, ect.

but anyway HOPEFULLY ill have the carb done by the end of the week. and but on over the week end, I have 4 days off work this week (yay) so i dont see it to be a prob. Ill let you know how it went and if it goes well what i did and what i used.