[ferraripilot]

Finishing it off in style. Finally getting around to installing this exhaust.

[bretm]

Originally Posted by ferraripilot

Finishing it off in style. Finally getting around to installing this exhaust.

Nice! What kind of exhaust is it? Any chance you could weight it before you install it?

I think the stock can was something like 50 or 60 lbs. I haven it written down somewhere.

[ferraripilot]

It's a Nouvalari. Weighs 28lbs. The Ansa sport it replaced weighed 22lbs and it was highly degraded inside! I really liked that old Ansa too :/

[bretm]

Wow, that's pretty light. I love the note of the original Ansa on the QV, but it's just so darn heavy and all that weight is hanging out on the back end.

Well, needless to say I'm looking forward to your next video.

[Granucci]

+1 wowza

[a1exander]

That sure looks neat.
On an aside I wonder what system Mark will fit on his 150% 308.
Sound clip would be most welcome once installation is done.

[ferraripilot]

I was doing some carb jet tweaking over the weekend. Here's my method, I remove the hood and carb box, make a jetting change, then drive the car a couple miles around a little path I have predetermined. I made about 3 swaps and found something I like, but the issue I have is a little different.

I noticed a very notable power difference when driving without the airbox installed. The engine is just tons happier out in the open. What should I do?????? Should I just stick some mesh over the carb horns to protect them from large debris entering? I wouldn't make a big deal of it but the difference is really noticeable

[a1exander]

I guess going without an air filter will shorten bore life......have you tried a K&N filter?

[ferraripilot]

Originally Posted by a1exander

I guess going without an air filter will shorten bore life......have you tried a K&N filter?

I currently have a K & N filter. I'm thinking maybe I should go to the K & N individual filters..... I'm just incredibly surprised at the power difference just in having the thing run open air so I can make tuning changes.

[mk e]

Sean noticed the same think on his ITB car....the air cleaners he could get on hugely restricted the power.

For what it's worth, on my engine I'm planning an air box on the ITBs and a couple HUGE air filters off to the sides. I want a stockish look so I'm thinking 2 OEM CIS 308 filterbox cover over 4 each (8 total) K&N CIS 308 filters. It might be over kill but I know it won't be a flow restriction.

[ferraripilot]

Mark, I like what you're doing. Very cool, I've seen the box you have fabricated. I think a bunch of these below should do it. They're pricey things tho, jeez

[Kaos Andy]

My 20cents worth (thats not much.... now days)
I have raced both cars and motor cycles and it is always better to remove the restriction if possible. For a road car, not such a good idea. You need a large air box. (i dont have a 308) but i think you need to raise the deck lid above the air box. Then a couple of large filters somewhere else in the cold air. the other thing is that the stock air box has an inlet on the side of the car i think. (i dont have a 308) and may be ptting the whole package under pressure causing lean mixture. one of my race cars had a false floor in the air box, the unused cool air was directed around the carbys (48mm DCOE) cooling the fuel in the bowls.try a couple of big vents in the bottom of the stock filter and some rubber flaps that will allow the air out if it is under pressure.. (long 20 cents...)
Andy

[duck.co.za]

John have you been for a blast with your mate with his 360 ??? Did you blow his doors off ???

[duck.co.za]

And here's a pic of the airbox you need to be building !! Taken from the Michelotto thread on the other forum .

[ferraripilot]

Haha. I wish. No, I've been so busy moving I haven't had a chance to take her out lately.

That Michelotto copy is a thing of beauty. Someone really took some time recreating that mechanical injection pump! WOw

[The Dark Side of Will]

Originally Posted by ferraripilot

I installed all but one of the pistons. One of the gapless top rings was not completely flat and would bind no matter what I did. I tried it in a couple pistons, same issue.

(Blast from the past) That happened with one of my gapless rings for my Caddy Northstar build.

Was it the "parent" ring that was made incorrectly or the "child" ring?

Mine was at 93mm bore and the "child" ring wasn't completely formed, so the last 3/8" or so of it was straight. Definitely wouldn't have done my bores any good...

[airdelroy]

Moving again?? You just moved.

Aaron

[ferraripilot]

Originally Posted by airdelroy

Moving again?? You just moved.

Aaron

Our new house was just completed, so we moved from our hoopty temporary place we initially moved into when we first came to Atlanta 6 months ago into our new non-hoopty cool house. yay

[ferraripilot]

Originally Posted by The Dark Side of Will

(Blast from the past) That happened with one of my gapless rings for my Caddy Northstar build.

Was it the "parent" ring that was made incorrectly or the "child" ring?

Mine was at 93mm bore and the "child" ring wasn't completely formed, so the last 3/8" or so of it was straight. Definitely wouldn't have done my bores any good...

I do believe that was the same issue mine had when I sent it back to them. Funny, it took them some 3-4 weeks to get back to me with what the issue was. Thankfully they forwarded me a new ring set for that cylinder immediately so I didn't have to wait for their tekkies to deduce to issue.

[ferraripilot]

I had a little bit of Tuesday madness today so I decided to get the car on the dyno.

I did not do any tuning on the dyno and I am very pleased with the preliminary results. 253bhp with 216lbs torque, and it's a wonderful flat torque curve. Some yahoos said I could not get a perfectly flat torque curve with these wild cams This is somewhere north of 300bhp at the flywheel.

Anyway, the engine runs too lean above 5k rpm running between 14.1:1 and 14:1 which is where peak power is starting to come in so I'm definitely missing a solid 10bhp+ from that alone. These dyno runs were also done with a conservative amount of ignition timing. I did not want to push the timing too much with it running lean like this. I'll dial back the air corrector jets to richen things up a bit up north, dial in some more timing, and then really make some power. I know it's on the table which is all that matters now.

The dyno a/f ratio meter could not read off my exhaust correctly for some reason so I just datalogged the results on my meter.

I have no doubt once I iron out the a/f ratio and dial in a bit more timing I will see something north of 270bhp at the wheels. Regardless, I am very pleased with the results as even in its current tune this is better power than a stock 348, 3.2L Acura NSX, and a stock Porsche 930 turbo. Well worth the build.





As a side note, the 3.4L NSX there was in for a destroyed gearbox. It makes 247bhp at the wheels. Not nearly as pretty as the Pininfarina lines