'98 lambo orange 427 vette

[dynotune]

Did the drivability and dyno tune on this car on sunday (customer from Mpls) Pretty good numbers for a pump gas NA 427 LS1. Mind you this is all GM factory injection with a 427 iron block LS1. The customer called me back on the way home and said he managed just shy of 30 mpg. Technology is good.

This was tuned in house with our LS1 edit software

427vette

[94NDTA]

I wonder how much that engine would cost.

[Guest]

OK this is way over my head I thought the LS1 was a 350?

[Raider]

good #'s Andy...Hey Andy did u get the fax I sent ya?

[91nbtsi]

Wow, nice numbers for NA!!

[torbs]

30mpg big block....WOW

[krzydrftr93]

my 1g doesnt even get 30 mpg, what the hell

[91nbtsi]

Because your 1g doesn't have a custom tuned ECU and, I am guessing, a 6 speed transmission with alot of overdrive in 6th gear.

[krzydrftr93]

nah it doesnt have any of that...just a beater 1g

[95TsiAWD]

Bad93ex wrote:
OK this is way over my head I thought the LS1 was a 350?

The one in the f-body's and Early GTO's is a 346. There are many others available, www.ls1speed.com

Just had to correct that as its one of my pet peeves when someone calls the LS1 a POS 350.:)

[adog]

The block can be resleeved and used with a stroker crank to achieve 427 cid, or a C5-R block can be used.

[dynotune]

The block can be resleeved and used with a stroker crank to achieve 427 cid, or a C5-R block can be used.

As I stated earlier, this is a 6.0L iron truck block, not a C5R or factory alum block- just to clarify