Ferrari Mailing List: Re: 308 Engine rebuild

[Peter Rychel (dino308gt4]

Yes, that’s the photo that was on TWM’s website. Sorry, I remembered incorrectly about the fuel rails, but in any case, the orientation required that funky linkage set-up (eliminating the warm-up high idle cam on the coolant branch).

 

Good to hear you had success with your Boxer. Although, it’s not a new idea. Back in the ‘80s, there were feedback carburetors that had mini fuel injectors inside to precisely trim AFR. They communicated with an ECU and an O2 sensor. I’m familiar with it as my Plymouth Colt had one and it crapped out on me before going in for smog testing! K&N has a kit that adapts domestic V-8 carbs nowadays: www.knfilters.com - electronic carburetor injection

 

I had contemplated on finding some suitable injectors and mount them a la F1 – on top of the carb throats – and have it spray down (remove the main and auxiliary venturis for clearance). That way, the injectors and fuel rails are all concealed in the airbox. Like many of my ideas, it’ll probably get way too complex!

 

Peter R.

 

Sent from Mail for Windows 10

 

 

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From: Peter Pless <ferrarilist [at] pless.com.au>
Sent: Wednesday, January 16, 2019 1:25:15 PM
To: 'Peter Rychel'
Cc: 'The FerrariList'
Subject: RE: [Ferrari] 308 Engine rebuild

 

Hi Peter,

 

What you are proposing to do with the Alfa carbs is pretty much exactly what I did with my BB512 in the late 80s. I had injectors installed into the inlet manifold just under the carburettors and took out the guts from the carbs, giving better air flow too. I would have done that with the 308 too, probably, but the inlet manifold wasn’t long enough.

 

With the bolts v studs…I just wasn’t keen on removing studs that had been in place for 40 years, and it was just so unnecessary. There was no reason for the throttle bodies to be that thick at that point. So, just a bit of grinding and it all worked out. PLUS….some people prefer stock, and just in case I ever had to put it back to ‘standard’, I wanted it to be as straight forward as possible.

 

I’ve attached a photo of the throttle bodies I used (I hope it goes through)…the fuel rails and in the V and not visible. The whole transformation has left it looking reasonably stock, unless you look very closely. Most people don’t even notice. Of course, it still sounds wonderful with a RHD car and the drivers ear right next to the air intake!

 

I was thrilled with the result when I did this to my BB, and I’m just as thrilled with the result this time too.

 

Peter

 

From: Peter Rychel [mailto:dino308gt4 [at] hotmail.com]
Sent: Thursday, 17 January 2019 7:04 AM
To: Peter Pless
Cc: 'The FerrariList'
Subject: RE: [Ferrari] 308 Engine rebuild

 

It’s not just for performance but making it future-proof; today’s fuels are really formulated to be delivered through high-pressure fuel injection systems. It just seems “off” when it’s run through carbs, even though I use the highest grade available here (94 octane, no ethanol). A friend is going to adapt a discrete set of injectors inbetween his carbs for his Alfa 2600, for the same reasons (will use the carbs solely as  throttle bodies and rely on the injectors to deliver all of the fuel). I wouldn’t hesitate to do the same conversion for my car.

 

Interesting point about the need for bolts instead of the original studs. I see their point because why would the throttle bodies have to come off in the future? But, I do prefer studs over bolts and appreciate your work to modify them. From what I remember about the online promo literature, the photos showed the throttle bodies arranged with the fuel rails on the outside of the engine “V”, thus necessitating the need for throttle linkage that operates in both directions, whereas the carbs are arranged in the same orientation, thus, the linkage works in one direction. These throttle bodies could’ve been mounted the same way as the carbs?

 

Peter R.

 

Sent from Mail for Windows 10

 

 

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From: Ferrari <ferrari-bounces+dino308gt4=hotmail.com [at] ferrarilist.com> on behalf of Peter Pless <ferrarilist [at] pless.com.au>
Sent: Tuesday, January 15, 2019 6:10:28 PM
To: PeterGT4
Cc: 'The FerrariList'
Subject: Re: [Ferrari] 308 Engine rebuild

 

Lol…well, it’s all relative. I think a Toyota corolla might be faster!

 

From: Lashdeep Singh [mailto:lashdeep [at] yahoo.com]
Sent: Wednesday, 16 January 2019 12:59 PM
To: Peter Pless
Cc: The FerrariList
Subject: Re: [Ferrari] 308 Engine rebuild

 

Regardless of whether you tried to or not, you ended up with a performance machine!

On Jan 15, 2019, at 20:53, Peter Pless <ferrarilist [at] pless.com.au> wrote:

No weight reduction on the car, but I could certainly use some personally!

 

I wasn’t trying to make it a performance machine. I was trying to make it the best it can be.

 

 

 

From: Lashdeep Singh [mailto:lashdeep [at] yahoo.com]
Sent: Tuesday, 15 January 2019 6:24 AM
To: Peter Pless
Cc: The FerrariList
Subject: Re: [Ferrari] 308 Engine rebuild

 

Very sexy!

 

Nice numbers on the engine rebuild too.

 

Have you done any weight reduction?

On Jan 13, 2019, at 15:11, Peter Pless <ferrarilist [at] pless.com.au> wrote:

Yes Lash, that’s the one.

 

 

 

From: Lashdeep Singh [mailto:lashdeep [at] yahoo.com]
Sent: Friday, 11 January 2019 3:20 PM
To: Peter Pless
Cc: The FerrariList
Subject: Re: [Ferrari] 308 Engine rebuild

 

Peter, is this for that Azzuro California GTB?

On Jan 10, 2019, at 18:36, Peter Pless <ferrarilist [at] pless.com.au> wrote:

Just rebuilt my ’76 308GTB engine. Did all the usual things that one does with rebuilds these days, plus installed Euro cams.

 

I also have 8 throttle bodies and injection. Looks stock. Sounds stock (very important) but makes the car run great.

 

270hp @ 6750rpm

312nm @ 3500rpm

 

Pretty happy with that result.

 

 

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