Just curious I haven't seen any turbo porsche motors on here. Is it a heat issue or just not one bothers.

"You Can't Turbo a 914!"


Ok, I got to say it first..... (Old running joke).


There are a number of turbo 914s out there. Just use the search.

ME First. You cant turbo a 914

QUOTE (sanman @ Mar 10 2006, 02:11 PM)

ME First. You cant turbo a 914

Ahhh Sucker.........

Beat you to it!!!

How is Raby's kit coming?


B

QUOTE (Brad Roberts @ Mar 10 2006, 02:12 PM)

How is Raby's kit coming? B

Last I heard he was still blowing up engines testing the limits before he makes a kit.

QUOTE (ClayPerrine @ Mar 10 2006, 12:12 PM)

QUOTE (sanman @ Mar 10 2006, 02:11 PM) ME First. You cant turbo a 914  :lol:  :lol:  :lol:  :lol:  :lol:  :lol:  :lol:  :lol:  :lol: Ahhh Sucker......... Beat you to it!!!

one day I Wil get to say it first

No kits but there are plenty of fabricators out there. "I" have a turbo Type I.....dual 48mm throttle bodies and a Schwitzer turbo. EFI from CB Performance....in a bathtub speedster.

If you get Excellence magazine there was a nicely done one with a 1.7 and CIS, contact them for a back issue or maybe Evil Ed will chime in.....then there have been a few carbed blow thru models.

Just trying to figure out in my head the best way to do this.

Seems it would be best to mount the turbo towards the back where the muffler would normaly be. Less heat up near the engine I would imagine. Then running it to an intercooler but not sure where you would mount that??? Maiking a manifold to 6 indivudual throttle bodies might take some work.

Just thinking about it.

oh. you mean turbo a 6?

k

QUOTE (rhodyguy @ Mar 10 2006, 12:28 PM)

oh. you mean turbo a 6? k

well yeah in my case the car i'm getting (dam wish the paper work was done) has a 2.7 motor. I bet the compression is really high though so that would have to be sorted out first.

But yeah either or. 4 6 all the same to me.

Go here http://community.webshots.com/user/evill914 and click on the Excellence album to see my old 914. Maximise or download the pages so you can read them.

As for the manifold, with a turbo, a single throttle plenum is all you need. Indiviual throttles will give you no real benefit. Same with the header, no benefit with equal length tubes like a n/a engine.

Ed

Nice looking car!!!

Yeah no need but the car already has itb and I ain't gonna change em. Besides I have only seen one car turboed with itb. Would be kinda cool

like mentioned above, there are few turbo 914s here...most are /4's and the only /6 I can think of it Iamchappy's 3.0 CIS turbo install...

if you do a search for "turbo" you'll find plenty of threads with pictures and info...

as for the individual throttle bodies with a pressurized plenum=
....not really sure why for a turbo motor you'd want to do it...I can see the benifits from a normally asperated engine but I see no reason for a turbo motor since you have the turbo to shove the air into the cylinders....

QUOTE (turboman808 @ Mar 10 2006, 01:47 PM)

Nice looking car!!! Yeah no need but the car already has itb and I ain't gonna change em. Besides I have only seen one car turboed with itb. Would be kinda cool

well, expect to take the ITB's apart and properly seal them.....going to be a PITA.....with only one TB, it'll be easier to locate leaks......

QUOTE

Besides I have only seen one car turboed with itb.  Would be kinda cool

and for a good reason, they too thought it would be cool and a good way to impress the kid behind the counter at McDonalds

Marty also has a turbo 6 on this board, but his is hardly the norm...

QUOTE (JmuRiz @ Mar 10 2006, 02:11 PM)

Marty also has a turbo 6 on this board, but his is hardly the norm...

doh !!! ....how could I have forgotten that fire-breathing monster??

well I guess selling the throttle bodies might cover some of the cost. If that was the case then I would get rid of them. But it is a porsche got to have some sort of coolness to it.

To chime in with EvilEd here is a pic of the motor, Ed it still soooooooo much fun to go fasssssssssssssst!!!!!!!

Mike M, Mugs914, hope I got that right, is building a 400 hp turbo with G50 right now. I forgot what the thread is on here, but he posted a lot of pics 1-2 months ago.

Later, Don

QUOTE (DonTraver @ Mar 10 2006, 02:56 PM)

Mike M, Mugs914, hope I got that right, is building a 400 hp turbo with G50 right now. I forgot what the thread is on here, but he posted a lot of pics 1-2 months ago. Later, Don

oh yea...I forgot that one as well...man, the girls have only been home a week and I'm losing it already

My .02 is that Porsche turboed plenty of sixes, that's where I'd start. Were any of them individual throttle bodies? I'm not sure just my random thoughts. Why reinvent the wheel?

QUOTE (turboman808 @ Mar 10 2006, 01:08 PM)

Just curious I haven't seen any turbo porsche motors on here. Is it a heat issue or just not one bothers.

back to the original question (sorta)

I think the main reasons for the lack of seeing a lot of turbocharged 914's is:

Only a few kits made and that was for the /4 motor.....

adding a turbo to a /4's or /6's will put you in a much more competitive (expensive) class in PCA or SCCA.....

For most people, it's easier or more cost effective to throw in a six than fab up the parts to do a turbo (/4 or /6)....

Porsche did not even install a turbo to the 911's until what, 1976???

The stock /4 (and most /6) fuel injection or carbs are not ideal for turbos....

Now that modern EFI can be done dirt cheap or that CIS systems can be put together from junkyards parts, it's a little easier....

Of all the reasons I listed, I think that the number one reason is that it's "easy" to install a /6 and that is what the factory did....

I drive 2 944 turbo's... one's pushing 350hp.. (just drove it today! kinda reminds me of my v8 when its on the boost.... )


If I still had a 4... It would already be a turbo already...

Actually, I have a turbo on my dresser...


turbo's are guud...

(planning on putting one on my v8 just because.... low boost..)

BTW....I have an extra Garrett T3 sitting on the shelf if anyone needs one.....

QUOTE (Mueller @ Mar 10 2006, 12:58 PM)

[/QUOTE] well, expect to take the ITB's apart and properly seal them.....going to be a PITA.....with only one TB, it'll be easier to locate leaks......

Mike,
Jenvey TB's come with sealed shafts just in case you feel the need to force some PSI through them.

Before:

As it comes together now:
C2 pistons and cylinders makes a 3.1 short stroke with 7.51 compression
supertech twin-plug distributor
supertech head studs
arp rod bolts
new valves and springs
1080 cfm intercooler
Msd btm boost retard ignition
7th injector micro fueler
K27

and a fresh paint job to boot

400 hp capability

under

side with air duct in spoiler

How the finished product should look, with brake ducts fabricated into a GT valance

That looks pretty cool. That's pretty much how I imagined mounting the turbo. Still curious what the best way to do the intercooler. Also do you have 2 oilcoolers? or is that like a coolant connected to a pump for the turbo?

think there is a way to mount the intercooler on the otherside underneith the car and make a fiberglass box that pulls air up into it?

Transmission cooler is shown underneth.
The intercooler is fed fresh air through the duct in the spoiler, the air is pulled through
the intercooler via 2 - 7" electric fans and ducted out under and through the transmission cooler.

Turbo oil is scavenged from the turbo by a 930 cam driven turbo scavenge pump.

My external oil cooler is mounted up front like everyone else's.

We have built some seriously powerful turbo /6 engines. In particular we have a 3.8 @ 800 or so hp, and a 3.3 at 656 RWHP

the 3.8 uses individual throttle bodies (ITBs), the 3.3 uses a 3.2 carrera manifold

I would recommend you sell your ITBs. pick up a 3.2 manifold from ebay or somewhere, the 3.2 manifold can mount either direction on the engine, so you can set up the duct work whichever way is best in a 914

You will then have to get an Engine management system to control your fuel and spark.. (shamless plug) we sell Haltechs

Or ( another shameless plug) I have a complete 930 intake system, which is a direct bolt on to a 2.7.. you will have to have turbo headers/collectors made. with the stock 930 system you will only have to supply appropriate fuel pump and the headers..

Also the 2.7 series werent high compression engines. a 2.7S was 8.5:1

Our 3.8 turbo is 8.5:1

There are a number of things Id check on an engine before I pressurised it. Let me know if you have any questions

This is a 3.3 930 engine with a 3.2 carrera manifold and EFI, 656 RWHP

This is a 3.8 with ITBs and 2 injectors /cylinder..

if you were creative you could fit this engine in a 914 engine bay.

800+ hp...

Wow Tim, lets see more

headers, though this pics doesnt help the teener poeple out there

another set of headers

Remember build your engine right, you dont want to see this

or this

Oh my!
Very nice stuff, my little turbo engine looks tame next to those real monsters. I cant imagine 6 to 8 hundred hp in a teener when 350 seemed to push me along pretty good.

Carnage pictures scare me, thats why I am building for reliability and safety.

QUOTE

thats why I am building for reliability and safety.

yes on the carnage engine we stretched the limits a bit..

On any engine having a sound bottom end is important, and even more so on a turbo engine

well it's nice to see you are in Wantagh in case I need to get some advice. Used to work for cablevision out in the area.

Oh and car already has haltech management. Not that I am looking to turbo the car yet. Maybe next winter. I need to learn more about the engines first.

Chappy has done an impressive job on his turbo installation. I built a few monster engines and stuffed them in a 911.. no ground broken here. Chappy has made a model install for you to follow

One thing I will recommend is that is you are going to turbo your engine.. tear it down and have a look at the crank and rods and case... spend some extra coin making sure to make sure everything is within spec.. and perhaps make it better than spec