Upgrade or Stock?

Well, I think there’s some other stuff too But hard to know what. The head porting and polishing and valve work obviously help. I think they may have oversized the valves (I asked but no one remembers) and I know that the owner who had it done was super impressed that they got over 290hp. He was expecting 275 to 285 he mentioned.

At the end of the day, I don’t know how much it really matters to me. I’m not rebuilding anything (I hope!) and the car has plenty of power for me. That said, I know you guys are always looking for what works so I’ll go through the paperwork and see what else I uncover.

Btw, I did talk to Simon a year or so ago about his kugelfischer set up. He is a truly impressive individual.

 

I live in Brooklyn and would be happy to sell you the Brookly Bridge if you're interested. Give you a nice fchat insider price. ;-)

 

I think you and I know another Fchatter not too far away whose speciality is that, lol.

 

Terrifying ? lol No car in my opinion , for the street is terrifying, that word only matches with very fast motorcycles. I guess you have not been on two wheels at 125 MPH on a wheelie in 3rd gear, or lets say on a lighter bike, in 4th gear at 100 MPH when the only thing keeping it from a huge wheelie is the wheelie control mapping. No car is scary fast, they can be really fast, never scary, its that simple. Try and match a plaid against a Hyabusa or a V4S from 120 to 170 the plaid would be left in the dust, one can talk all about the 1/4 mile, that isnt ****, try it from 120 to 170 +, see what happens.

Big G

 

Here's a 3.5 liter 308 with 347hp

 

Ummm I don't trust those numbers. They should've posted the Dyno numbers not the SIM numbers.

It's probable to get that power, so why not just use the actual Dyno numbers?

 

Gino, you may be right re the Hyabusa vs Plaid doing a 120-170 mph race but where are you going to do that? The reality in the real world, NOT at the salt flats or on a two mile long abandoned runway, is that the Plaid will outrun pretty much any ICE street vehicle...and it will do it while the driver is sipping his Latte. Do I LIKE that? No but as Dylan once said, "The times, they are a' changin."

Re fast motos - At the track, the fastest/quickest motos cannot equal cars in lap times, 1/4 mile times, braking distance or any other "tests" you can come up with. The fact is that four wheels gives you more capability to apply power/braking/cornering than two AND cars are far more aerodynamic than bikes. OTOH, I will admit that 150 MPH on a bike is a bit more "intensive" than 150 in a car.

 

Drag coefficient of a Hayabusa is what? 0.4 - 0.5? It would be a remarkable feat of aerodynamics if it accelerates faster above 120 than below with a Cd that high.


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I was really saying that compared to the tesla, it would beat it because of its good aero, not that its faster up to 120, just that it would be quicker going from 120 + .

Big G

 

They have a bunch of videos (after I posted youtube sends me 308 dyno runs everyday), all end with a similar shot of what I tough was a printout? He's got a few that are JUST shy of 100hp/liter. I'm doing everything I can to get mine down to that number with restrictive air boxes and duct work

 

Back in the day ('96?) I got 151 down the front straight at Daytona on my H-D race bike.....most boring part of the track. come out of the back chicane, twist the throttle open, and wait about 20seconds until you find yourself at the end of the straight going WAY too fast for turn 1 then it feels FAST . Heck, 70mph of so feel incredibly fast when your sliding along the tarmac toward the hay bails

 

Just to follow up on the hp rating on the group 4 cars, one was up for sale yesterday at artcurial in Paris and the catalogue description notes the hp as 305hp per Michelotto. So once again, whatever recipe the engine builders are following for group 4 prep is yielding a lot of hp per liter. Mine is in the 290’s but not as high as 300.

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Regarding motorbikes. I have just about every great Ducati they made, including the new V4 Superleggera (235hp snd 335 lbs or something) annd a few old factory race bikes and I do a ton of track days. There aren’t a lot of good places to ride bikes that go that fast. Even many tracks aren’t enough. I need big tracks for some of the new ones.

I like tracking motorbikes more than cars but I not because I think one is faster. It’s more that motorbikes are more engaging and a very full experience. I like tracking cars as well but it’s not the same.

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My understanding is Michelotto was using the 208 heads. I had 1 here to play with on the flow bench maybe 15 years ago and it came right up to stock 308 flow number but with much smaller ports so much higher velocity and DM5 said it would make lots of hp. I dug though and this is that head with a p6 cam...it would make 300hp with carbs on it I'm pretty sure, this would be ITBs
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Im in agreement with all except braking distance, and as far as aero, the Busa is far more aero than the plaid, and for a motorcycle hitting those speeds and slowing down from them happens a lot faster on a bike in a straight line and to most dismay on here, I will say, that I have on several occasions hit brake neck speeds out here on the freeways on my Suzuki, just the other day I spooled the V4S Street Fighter up to 160 coming up over the brand new Long Beach harbor / Terminal Island bridge . These bikes have amazing brakes and the amazing ability to slow down much faster than a car . Remember, we are comparing bikes to 1000 HP electrified cars with all their power / torque to the wheels as soon as you touch the pedal , not your run of the mill 5-6-700 HP ICE, that in itself says how fast these bikes really are in my estimation. Thank you Sir.

Big G

 

If we all concede you are the most brave/macho/foolish person here, could we get you to stop trying to prove it in every post you make?

Sorry. I know that's an impossible ask.

 

160 MPH on a road in "town?" What time of the day was that? You'd be "under the jail" and the bike up for auction if caught/observed by the Law .

I don't know whether to say, "I'm impressed" or to say, "That F&^ker is CRAZY!"

 

You have to know when and where to spool up to that speed, this stretch of road is like a freeway , so four lanes going up hill in the same direction over a bridge , and there are never any police shooting radar, there are no blind spots. On the Busa, I have been over 160 several times, once at 180 and once at 185 , at night in the carpool lane on the 22 . Like I said, these modern bikes can accelerate so fast to these brake neck speeds and then brake down to the speed limit before anyone can really notice. For all intensive purposes, this is not uncommon . The time of day was somewhere around 1 - 2 PM in the afternoon on a weekday. There are two stretches of road very close to my house that are 4 lanes, 2 each way, with sweeping corners with jersey barriers all the way up / down on each side, so 110 - 120 speeds are no issue, there are no places to get clocked, you just have to make sure your not going to pass any police, which is not hard to do because the road has long sweeping corners that are easy to see around. This is not new for me, Ive always been a very skilled rider and at 59 , I have a clean record . Speed is addictive, and fun, just taken in small doses once in a while, and no one loses and eye.

Big G

 

I'd be careful with admitting such things... If not mistaken it gets into TOS violations...

 

Hi new here I am looking to purchase a 308 so far I’ve seen it and it’s haven’t move for 20 years it hace rust in some areas and don’t know overall condition .

 

I forgot to mention that I came across this blog post some time ago. It has some really interesting information about the P6 cams, various details about the Sprint Pack, and interesting timing information.

Have any of you guys come across it before?

http://yorkshireferret.blogspot.com/2016/06/ferrari-308gtb-last-throw-of-2-valve.html?m=1

 

Yes I have seen it. I recently heard from a contact that Maranello concessionaires had installed 6-7 of these kits on GTBs and 1 in a GTS in-period. All pigs to drive with this kit though!

 

I just wanted to update something:

I took the car to the track last week for a shake down. It's really an impressive car. It handles extremely well and is so incredibly competent. That said, I think that over 290hp is not right. I don't know if that sheet I saw was an incredibly optimistic dyn0 or what but after running it hard on a hilly course, I think that the power is more like 275hp or so as @Ferraripilot and others thought.

A couple of things: first I am at altitude (5500 ft)which loses a lot of hp and second, the carbs are not tuned for this altitude and the car is running really rich (loads up easily with too much gas, shoots flames when I lift). I know that those have an effect but even with that, I think that the car is maybe a low to mid 280's car at best.

The car is really amazing. I'm not sure if I would want more power after having fun with it on the limit and sliding it a bit but I wanted to correct the record after giving it a thorough and proper day of driving at the track.

 

What a fabulous thing. Very jealous!