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How much does turboing your 346 really cost?

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Old Mar 5, 2006 | 01:01 PM
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Default How much does turboing your 346 really cost?

At first I was thinking I'd go H/C route first, then could always switch to a turbo set-up if I wanted more power. But it seems like it might be a waste of dough.

I know that the cost of going turbo could vary greatly (depending on turbo, heads, cam, intercooler, exhaust and everything else used). But ON AVERAGE how does it compare to the cost of a good H/C package (with top performing heads, cam, exhaust, LT's, etc etc.)?
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Old Mar 5, 2006 | 01:08 PM
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Whatever you budget x 2 to be safe.
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Old Mar 5, 2006 | 01:21 PM
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The price of your kit plus 50%. About $10k in my case. I am not even close to done yet either. My total right know is about $15k with the other misc stuff.
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Old Mar 5, 2006 | 01:23 PM
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Well the good thing about a turbo is that you can run low boost around town and then when you go to the track you can up it and then turn it back down to drive home...If you have a high compression head and cam swap it's going to be there always...it's going to cost you more to do the turbo because once you start modding more you going to eventually do the head and cams anyways...What are you trying to shoot for and how are you going to use it will determine if you want to go with a turbo....If 400rwhp is good enough then go with the head\cam\headers etc...You can obviously make more power than that but anything over 450\500rwhp would not be street friendly where as you can get away with it on a turbo car...
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Old Mar 5, 2006 | 01:42 PM
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If you try to figure this out, you have to make sure that you are comparing stuff on an equal basis.

The one thing that some kits lack are fuel systems. Generally these kits are sometimes referred to as 'tuner kits.'

I think a number of kits are $5-7K, and I am not sure if they include fuel systems. If not add $1000 - $1500 depending on the level you are shooting for powerwise.
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Old Mar 5, 2006 | 01:53 PM
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Thanks guys, that gives me some ball park figures which is all I was looking for.

As for bolt-ons, I assume that you still want the same hi-flowing exhaust, y, LT's, 90/90 etc on a turbo car that you would want on a H/C car. So I could do all of my bolt-ons first and then decide what route to go without having to make any changes, correct?
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Old Mar 5, 2006 | 02:00 PM
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If you going to go with a turbo up front then I would stay with the manifolds until you're absolutely sure what route you want to go but if you're going to be running a STS type turbo then I would do the LT's for the time being...No since of wasting money especially since some of the LT's are running upwards of $1200...It's best to plan out your route that you want to take first and then start going from there...
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Old Mar 5, 2006 | 02:07 PM
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some AFRs are $2000+ assembled
big cam - $300-400
timing chain, oil pump, gaskets - $300-400
pushrods - $100-200
so expect $3K+ for a "top performing" package and make around 450-475hp.

most street tuner turbo kits are $3k-4k and youll make anywhere from 415-500hp.

IMO, FI is more streetable. You can always turn up the boost. i didnt count pump/injector prices because youll be buying them no matter what route you take.

I would search around for inexpensive turbo options. sts, GMR, and others. Also, i forgot to factor in exhaust. If you go h/c youll def need to get some bolt-ons. At least a ls6/ported tb. so factor in $400-500 for that and at least $1k for exhaust just to reach that 450-475hp mark with h/c.
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Old Mar 5, 2006 | 02:18 PM
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depends on what you can do yourself. do it all yourself for around $2500.
If you have to job everything out prices go way up. Buying a kit is expensive also. The only thing a kit offers is the piping fabbed. If you can weld or know someone who can fab for you that will be greatly cheaper.
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Old Mar 5, 2006 | 03:32 PM
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i agree DIY will usually be cheaper. but a kit ensures its usually complete out of the box. Just depends on the skillz. Sometimes DIY projects are even cleaner
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Old Mar 5, 2006 | 03:41 PM
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I wouldn't ever do an FI project without having $15,000 ready to spend.
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Old Mar 5, 2006 | 04:11 PM
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$7k min once everything is done
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Old Mar 5, 2006 | 04:36 PM
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Originally Posted by mahhddgtp
I wouldn't ever do an FI project without having $15,000 ready to spend.
werd
I am getting very close to that with turbo kit, supension, tranny, clutch, 9inch rear, and fuel system
still lack a forged engine
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Old Mar 5, 2006 | 04:37 PM
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That's usually just for the kit though....You have to figure in some money for a shortblock too if you're going to be going too crazy with it...
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Old Mar 5, 2006 | 05:05 PM
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Originally Posted by 98turbls1
If you going to go with a turbo up front then I would stay with the manifolds until you're absolutely sure what route you want to go but if you're going to be running a STS type turbo then I would do the LT's for the time being...No since of wasting money especially since some of the LT's are running upwards of $1200...It's best to plan out your route that you want to take first and then start going from there...
You wouldn't put LT's on a turbo car? Whenever I read the turbo faqs, they always talk about the turbos themselves (and some times cams) but what about bolt-ons? Surely you would want full bolt-ons before throwing the turbo on just as you would for H/C.
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Old Mar 5, 2006 | 05:12 PM
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Unless you do a rear mount turbo you won't need longtube headers.

Turbo kits come with their own manifolds that the turbo mounts too( with a crossover pipe)

With the rear mounts, the turbo is in the back so you "could" run longtubes if you wanted.
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Old Mar 5, 2006 | 05:38 PM
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Thanks for answering that...That's why I said you would need to know what kind of turbo you're going to run...
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Old Mar 5, 2006 | 06:09 PM
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$15-20K if you factor in driveline upgrades and a little bit of motor work.

Mark
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Old Mar 5, 2006 | 07:26 PM
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id say 10k would be safe for a nice setup.

I was looking at the PTK with 76gts. With fmic/ fuel/ installation/tuning/ few other boltons, im still looking at close to 10 g's. Would love to make 500-550whp on stock internal engine.

I am really starting to consider the sts kit now.

I agree with the above post though. To really do it right the first time, id figure have a budget of 15K.
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Old Mar 5, 2006 | 07:42 PM
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$15-20 if your serious about it...
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