jon mitrosky

Is there less problems with a single turbo conversion? I am thinking about dumping the stock twin for a single..dont know what size yet... But i want to know if i will have less problems or more. For the people who have already done it...How much did it run you...Total for everything..? Let the big dog know alright.....

rotorbrain

hey, big frog......i mean big.........dawg, im gonna have to say that the engine bay is a whole lot simpler than a twin turbo engine bay. that is it. its a simpler engine bay. you still have to tune it. and run the correct fuel setup when you do it. but there is a whole lot less clutter. i personally run twin turbos cause im an idiot. haha. i dunno. single turbo looks, good performs well, and reduces all the heat-sinks involved with turbo control. if youre thinking about doing it, then you should. make sure you do it right though. do a search. youll get all you need from those posts. and go to the single turbo forum. cool.

Wargasm

Going single is great... I don't have any of those pesky solenoids or hoses left at all. I think I've got about 3 vacuum lines on the whole car now.

However... doing a single right is time consuming and not cheap. I think that a properly maintained twin turbo setup is VERY nice for a daily driver if you aren't looking to get big power numbers.

If you do it, do it right!

Brian

Wade

iTrader: (1)

Practically every person I know who has a single turbo has gone through at least one engine since converting (usually within 6 months). You might get rid of some vacuum hoses or other minor annoyances, but it is unlikely your car will last as long or have fewer problems if you convert to a single turbo.

Wade

enuttage

My advice is that if you have doubts about whether you'll be able to do it properly, have a professional do it. That's what I did. Some might say I chickened out, but I call it preemptive idiocy control.

I'd say a huge number of single owners who lose an engine in the first six months (I don't know how often this *actually* happens) are experimenting with how they want the car to run. I think barring true accidents, many folks try to push their car beyond it's limits (fuel management wise) This can be an expensive learning process.

$12K is what it cost me to do a full-on conversion.

Good luck, whatever you decide.

-E

p.s. Single turbo feels great!

rotorbrain

check out the group buys section look for a single turbo group buy. thread starter will be spyfish007. he details the kit on there so id look at if i were you.

mkoch1

Going single only eliminates the little headaches like irregular boost patterns. It eliminates all those boost hoses so you don't have to worry about them anymore. Like I said these are little headaches, if you are paying someone to fix them they can be expensive little headaches. It does clean up the engine bay a lot, which makes it easier to work on. Single are also a lot simpler than the sequentials, less to go wrong with the turbo itself. Going single is expensive, you don't just slap a turbo in there, you also need a manifold, down pipe, and waste gate. Not to mention you most likely going to need a different IC, computer, fuel rail, and fuel pump. You also need a good tuner to set it up for you. Singles can make big power and if that's what you want and have the wallet to do it go for it.

I personally think a properly tuned 320 rwph single turbo would be more reliable than a 320-rwph sequential turbo rx7. I think the issue is most people are comparing high hp single turbos to the reliability of lower hp sequentials.

jon mitrosky

alright...thanks for your guys input...its not like i got the money now to do it..just wondering which one is less of a ball buster...

93TTRX7

12k? What kind of set up do you have?

My goal is to get a T-66 in there some day

Import Convert

I'm looking to eventually upgrade to an Apex RX6 turbo. I'm really hoping it doesn't cost $12K! Here is how I have it broken down-
Turbo kit= 3K
intercooler= 1K
Power FC= 1K
Various fuel mods= 1K
Professional tuning= ~.5K

That works out to be 6.5K did I miss something?

Import Convert

Oh yeah, that is if I assemble everything myself.

93TTRX7

you can get a bolt on turbo installed for around 500 bucks...although the T66 would cost a lot more =)~

jspecracer7

All of my buddies with FD's have gone single. I ask them if they regret any of it and they all laugh...same reply..."I will NEVER miss the twins"

Cheuk in Seoul

The only regret I have is why I didn't do this sooner.

I have owned my car since 93 so every stupid vacuum and solenoid problem you can think of.... I've dealt with. After THREE turbo control solenoid failures... and switch to non sequential... I switched to single turbo. I have never regretted the move.

I now have 420 solid reliable RWHP.

enuttage

Might want to add a stronger/better clutch and/or flywheel, BOV, boost controller, etc.

Plus, you can knock about $1500 off my price for front bumper and rear spoiler that I purchased.

I still think realistically, to do it right, you're looking at $9-10K. I dunno though. Maybe some have done it for less.

-E

weaklink

first of all i noticed you rounded down , then :

fuel pump 100-200
larger secondaries, or custom fuel rail 200-800
blow off valve 150-400
boost controller 30-500

I also think reliability issues stem from people doing a single without a rebuild or "freshening" the motor. You can't raise the horsepower like that on a weak motor and not expect it to go.

rebuild around 3K more with port and 3mm seals

so you will save a bit doing it yourself, but I think around 10-12K is about right if you have it done.

jon mitrosky

okay so i basically need about 10gs then?