anyone ever turbo a 348

forza mag featured one earlier this year...it was a twin turbo...if this helps

 

Here ya go... Koenig 348 Turbo Kit

Not an easy job since the engine compression is so high to begin with. Unless you change the pistons, anything more than a small amount of boost will cause detonation on regular pump gas. And the motronic system, fuel injectors, regulators, MAFs, exhaust, etc. would all need to be modified/upgraded. Probably best to go with a kit like the Koenig system rather than piecing something together.

 

Look up Norwoods in Texas. They have put turbos on loads of Ferraris.

 

might want to talk to smg2/scott, he's trying that, I believe, as we speak.

 

+1. They offer a 348 turbo kit. All ya need to know.




Darrell.

 

Norwood never did put out a 348 kit.
There was a mention of a kit on their site for
some time but it mever materialised. I asked
them about cost and they were in the 45K bracket.
A bit much. We've mapped out a solution for a
lite turbo (7-8psi) we figure will put out 425hp.
Currently working on the engine management
solution. Our plan is to implement this winter
when the engine comes out for it's full service.
I'll post when we get further along.

 

A bit much??

 

Ya learn something new every day. I had seen the kit on the site a number of times, just didn't know it wasn't offered. They do build turbo 348's though. I have seen a number for sale over the years.



Darrell.

 

Member 348_Turbo had a Norwood's one.

 

LMAO!!! does that include the car???? Because thats well MORE than I paid for my car!!!

 

Exactly why there aren't too many turbo 348s out there. The Koenig kit was around 50k IIRC. It just doesn't make sense when the kit is more than the current pricing of the car.

 

Whenever they see the Ferrari badge......$$$$$

We've estimated a turbo system can be had for under 15K.
Exhaust headers -4K
Turbos - 2K
Piping - .5K (custom)
Intercooler - .75K (custom)
Exhaust - 2K
ECU - 4K

Time - priceless

 

I thought I posted in here yesterday, but it seems my posts are missing??

Anyways, yeah man. Can be for that easily.

A friend offered to TT my 348 a few years ago. I can do it for around the AU $5-7K, for parts. His labour and tuning for free.

 

+1 Especially the time factor for fabication & fitting.

 

I left lots of room in the pricing for remakes.
It's a Ferrari so the end product has to look polished.
Everything jet coated, etc.

 

A ferrari mechanic I know used to work on a Koenig turbo and told me that it had 2 engine rebuilds in a coupel of years.

Then again, there's a yellow Koenig 348 that does a lot of trackdays and he doesn't seem to have any problems.

 

I LOVE THIS IDEA ... I too once built a junk yard turbo mustang ... all said and done less than $1000 for great hp. The tough part is the engineering of the exhaust manifolds and getting the right a/f ratio, timing, aka ecu. With those two pieces in place, the rest becomes childs play.
So who among us can get the manifolds engineered?
And who is or ecu guru?

 

BTW, lets just be reasonable with the internals of the engine ... let start with just a 50-75hp boost.

 

I think that is the way to go. Take the original 2x 1.7L 150hp engines and boost to 180hp a side. Sounds reasonable. There may even be a 'ricer' 4cyl kit that could be modded to suit. Would move a slug of torque down the rev range and make the car feel much faster. Nice small turbo's would spool up quickly too.

Would turbos put in the position normally occupied by the cats be too far away from the action?? I know little about turbocharging..

 

Been kicking this around myself. I think it can be done much easier and cheaper than one would think. I'm thinking of the following:
1) Keep the existing ex. mani.- remove cat- weld flange on mani, install GT28RS, fab bends from turbo to existing exhaust can. bridged dump valve. Each side. $2800 both sides.
2) Dump both ECUs, install Hydra Nemesis stand-alone, using SPEED-DENSITY system, requires TPS on Throttle plate, picks up triggers from RPM and density from EBC. Goodbye mafs. $1500.
3) remove air inlet to TB. install velocity stack and KN cone at inlets, twin A2W intercoolers plumbed to Heat exchanger in faux grill. A2W pump run on PWIM based on density from Hydra ECU. $1500
4) A2W to TB connectors with boss for Aquamist fogger and BOV. $500
5) Tuning, $2000.
7-8psi 425-500hp
$8200

OPTIONAL:
Custom pistons dimpled at valves, becoming non-interference engine and lower compression.
13-15 psi.
hp? sky is limit
?? Anyone know where to have these made?

 

I'll play.

1. Anything above 6 or 7 lbs boost will cause detonation on standard premium gas (California - 91) so an inexpensive set up would have to be small dual turbos to avoid the cost of engine internal upgrades.

2. I've seen an article of one set up (I believe it was a Norwood 348 turbo) that placed the turbos after the catalytic convertors and it was still quite effective. That would significantly reduce the cost of exhaust customizations.

3. Using Aerocharger turbos removes the need for additional electronic management as they are self regulating. The standard motronics could be used with reprogrammed chips. ND is our resident ecu/chip guru.

4. The Bosche MAF's can read slightly over atmosphere, but not enough for a turbo application. There are 6-pin MAF's available specifically for turbo applications. Reprogrammed chips would have to take into account the wider range of signal variation.

5. Corky Bell has a rising rate FPR for turbo upgrades, but even with that the injectors would need to be upgraded as the stock ones are pretty close to full duty cycle at WOT. The OEM fuel pumps should be okay.

6. Intercooler: The least expensive route would be one larger intercooler mounted roughly where the airbox sits and then feeding into the intake plenum. This isn't the best place to effectively cool the charge air, but going with two intercoolers mounted lower to take advantage of air flow from the side strakes (or a water cooled intercooler) starts getting pricey.

7. My research into a DIY turbo project ended when I saw how tough it would be to get a BAR cert in California. The ideal solution would be something that can be legally registered/smogged and driven on the street; this is obviously variable depending on the state/province. California has to be one of the worst when it comes to mods.

FatBillyBob was considering a low-boost turbo set up on his 348 before he sold it - maybe he can chime in with some words of wisdom?

 

How about a supercharger mounted up front where the fuel tank used to be? (put a fuel cell in the front boot,plenty of room) Seems a lot easier to me and less money. Throw in bigger injctors and mafs. Pay to have the fuel maps/chipping done, and away you go! Scott