I'll take this bet. I get a TPI 350, you get a 350 with a 42 mm Mikuni carb, may the best engine win.

 

You may want to define the parameters of your definition of 'performance' before some wise-*** comes in here and pokes a hole in that statement as it stands.

 

Not a mag junkie, but reading my new Hot Rod they iinstalled a new intake on a Gen lll sbc with carb, dynoed 488hp @6400 and 431 tq @5300

Later they did a few cam swaps and got 530hp @6500 and 464tq @5200

Think that speaks volumes over the fuel injection they come shipped with. Maybe I'm wrong.

 

Lets see, carbs vs EFI, this again...

I know EFI fairly well, even though I'm just a "monkey"

Now in the days of out of the box carburation, you EFI guys need to stop bring up the barometric pressure temperature, and all that garbage. It never needs to be done. not for twenty years. So give up the dead argument already. I've gone out pumped it twice and fire up the 383 with a 650DP in -40 below celsius.

Yes, temperatures "most" Americans have never experienced, and it fires up every time.

As for the increases of carb over EFI...
shall we start with HP or TQ. Both you'll get more of with a carb. HP is a given, but TQ as well. It just happens higher up in the curve, which ultimately gives you a higher powerband.

If your comfortable with carb, stay carb. If your comfortable with EFI, then stay EFI. But if you don't know enough about both, then please don't make such uneducated comments.

 

Whew!
Ljnowell...I think you've got issues, bud. Nobody's trying to **** in your cornflakes but you like pissing in theirs.
I mean, I don't even know you, have never met you, but you're so stuck in your ways.

Dude, I run TPI because the car came with it and it happens to work great for the street. It responds beautifully to the 355 engine I bolted under it. I had the 355 in my Corvette previously, with a Holley 650 double pumper on a Wieand dual plane, and I've gotta tell ya, it wasn't as fast with that set up as it is under the TPI. Plus, just like the others are saying, it runs like the Eveready bunny, like a Timex watch, never a hiccup, burp or fart, and perfect every day. Mileage improved from 16 mpg in the Vette to 19 mpg in the IROC with TPI. And it's much quicker now too.

And like I said before, I run mostly carbs. Why? Well, because they are cheap, I do understand how to tune a Holley and I can get good performance for well under a grand. I'd LOVE to fuel inject my Corvette, but I can almost guarantee I can't afford it.

There, now I'm not the only one that has invited you to a heads up race. Now you've got several other members who'll put up their TPI F-bodies against yours. That's a lot of beers you'll be buying, huh.

Hey, chill out. Carbs are great, fuel injection is great. Most of us probably can't carburet our FI cars anyway because it's illegal where we live. If you can and you like it, well then, enjoy life...and us monkeys will enjoy our lives in the jungle.

 

Thats nice. I guess if you want to come and race, you can. Money is what keeps me away from fuel injection. The TPI is not great. It wont be until you change the intake, and then it isnt.

BTW, its easy to challenge a guy from across the country to come and race you, isnt it??

Where are all these people, I only see you? You got a mouse in your pocket or something??????

 

For thoses who are interested , I will run theses victor jr on a 355ci with 10.3:1 cr

 

I'd say I'm probably in the low-14's at Denver's altitude. I believe Bandemere is about 5800 feet ASL. I wasn't saying I'll drive my IROC clear across the country to race you. I was saying if you ever wanted to come out my way to prove your point, loser buys the beer. If I lose, fine. I buy the beer and we hang out and watch the action at the dragstrip. If I win, you buy the beer.
What I intended was to "friendly-up" this debate of carb versus TPI, not to armchair race and make belligerant claims from across the country.

If you don't get the opportunity to come out this way, then fine. If I ever find myself driving through your state, time-permitting, I'd drop by and have you show me how fast your car is. I'd bring my G-tech so at least we'd have something to go by.

The altitude difference is a significant factor though. You might think low 14's is slow, but if you bring your car out here, you'd be dealing with a third less horsepower, give or take, and might find yourself running in the 14's somewhere too.

Mouse in my pocket? No. Mouse in my IROC though, and it's healthy. Quicker than most cars on the street. Tell you what, I am able to run with a Subaru WRX driven aggressively, except that their superior traction will get a carlength on me. That's quick. Those things are about 5 seconds 0-60. And that's with my TPI that you love to hate. Find a WRX, ask him to race you, and you'll get an idea how I'd compete.

No, dude. I'm just trying to be friendly here. Don't take it any other way.

 

ljnowell,

Is there anything you WON'T argue about?

Let the TPI lovers think what they want. They have a long time to think about it while running down the 1/4 mile.

 

If that's the case, you have way less than 350 horsepower. Those cars are mid 14's at sea level.


As far as the original topic goes, I don't think that huge cam 355 is a good idea for the street. I'd shoot for 10.5:1 with aluminum heads and 10:1 with iron heads if you want to run reliably on 93 octane.

 

I found some nice SRP 10.3:1 piston for the 355.They will be perfect to run with the vic jr heads & my new super victor intake

 

The 350 horsepower is from Dyno2000, not actual fact. While I know the desktop dynos are optimistic, I still use them as a rough idea.

WRX's are lighter cars, so that a 276 hp engine makes them quicker. To keep up with one, a Camaro has to have a higher horsepower engine because of its heftier weight. Especially in such a traction challenged situation.

Another point I want to make is that a turbocharged engine suffers much less from altitude than a naturally aspirated engine. The only real difference is the turbo lag is increased with altitude. I was a turbo dude too before I got into V8's. Get a WRX driver who knows what he's doing and keeps it out of lag by stroking the throttle, and he's gonna walk away from the majority of you guys. If you don't believe it...run one.

They are still 14 second cars in Denver.
By comparison, LS1 Corvettes are about 15 flat up here. To get a tuned port capable of potentially beating an LS1 engine in the quarter mile is significant. Yes, I know I could bolt on a Stealth Ram and go even faster...I just really don't see the need to.

If I want to go faster, I've got faster big block muscle cars to do it in...

 

i just buy my new cam-lifters & rocker

Xtreme Energy XR286R Mechanical Roller Camshaft Lift: .576''/.582'' .614''/.620''@ 1.6
Duration: 286°/292°
RPM Range: 3000-7000
110 lsa

Lifter solid roller pn;818-16


rocker pn;1305-16 7/16 stud 1.6: ratio

For the bottom end i am about to order a Eagle 355 balanced competition rotating assemblies kit 10.3:1 with SRP piston.I also got a TH350 with a 9" tailshaft.I still loocking for a stall torque and if the $ is ok a trans brake too .My goal is to run around 11.6 on motor and 10.6 on 150 of nitrous street legal & both wheels up at the starting lane