Just for the record, I'm an import guy. Always have and always will be. But I give credit where credit is due. GM really made a great motor. Anyone who thinks otherwise is just hard-headed or hasn't read up on the technology that it employs.

 

yeah i read that a year and a half or so ago

I fixed my post 5 min ago to add exhaust too - meaning the exhaust AND headers etc
oooo a slightly larger throttle body - didn't know that, I'm sure that's a major factor in the powerband shift right there



it is a nice engine, but that cam and valve size change is pretty big and I still think is mostly responsible for the LS7's majority of it's upward power. Otherwise chevy could have had a LOT more low rpm power at the expense of high rpm power. The exhaust that opens up is a nice compromise to get the best out of high and low rpms too, but I the cams are running the show in the first place

the LS7 doesn't have a whole lot more low rpm power than a normal C6 - and is mostly negated by the even taller gearing than on the MT on the C6. Traction was obviously a concern, and why they put the power up high in the powerband aside from that's where people who really race will want it

 

can't wait until i supercharge my z06

but yes there is no replacement for displacement. combine FI and huge displacement and you can't go wrong, granted you have traction

 

Sentry, let's bottom line this. I'll go first.

You will not find a lighter, more compact, more powerful, more fuel effiecient package than the LS7. Everything else that's better at one of these compromises at least one of the others.

Your turn.

 

i agree, always have

the LS series in general has been the best all round package of an engine - even plentifully available

that said, the rest of the non-chevy world has what they have and makes the best of it. Some people even like their engine's characteristics anyway even though it's not an LS7.

 

Agreed 100%. Hence why I said...

 

ferrari v8's are better . them things rev up to 8500

 

I do really like the LS7

cars are heavy these days and if the V6's are just as heavy as an LS6/7, I'd take the LS7 of course and would pay extra for it if it was a possible engine option without major aftermarket work.

these days with cars being so heavy, smaller engines weigh more and don't make enough power to push their car's weight all that much faster

it's a shame.
The vette has stayed about the same weight but gotten a lot more powerful

all the other cars out there have gotten a lot heavier and only a small amount more powerful

 

And are lucky to get 13 MPG highway. Sound sexy up there though.

 

the thing is, high revs really needs short gearing to be fast. High rev engines tend to make their power up high, so their low end power isn't so great and needs shorter gearing to make up for that.

Then again a car like the viper, has so much power on tap that people get killed in them or lose control easily because the torque is compressed so down low and also can't rev very high. They have extremely tall gearing, but it still doesn't seem to be mild enough from how many people lose control

ferrari engines are bad *** though, but well it's a ferrari engine - not something normal mortals would be willing to abuse and pay out the nose for repairwork if something on it was damaged

 

The losing control and people getting killed part has more to do with there lack of skill and knowledge of the cars characteristics than the car itself....BTW there are a few tuner 8+ ltr 8000+ rpm Viper motors out there so engine size isnt the limiting factor in how high it can rev...See SVS....

Bottom line from reading all this ish is that at the end of the day we have 300hp V6's that I cant get more than 12-16 mpg with and then theres the LS series motors that give you anywhere from 350-505hp and get over 20mpg...Oh and its only 12k for that Z06 505 hp motor from what ive read vs 7-8k for our motors.....That renders the hp/ltr/efficiency ricer bullshyte dead, period....

 

8+ liter at 8000 rpms SVS engines are impressive, but I doubt a car manufacturer will sell them in their cars with a full normal warrenty which was my point. They're considered race engines and I wouldn't expect them to last as long as a normal production engine