https://ls1tech.com/forums/generatio...ly-done-3.html

Your numbers are substantially higher than a full mamofied setup with 102 fast. Not hating on you but i do have a healthy skepticism of this. I assume you have a 6 speed?

 

Just shows you, that you dont need to spend $3000 on heads to have a mean and stout setup that isnt complicated.

 

Yes I have a 6-speed. I am not that much concerned about this dyno versus that dyno as much as I am my before and after numbers on the same dyno. I made a comment that clearly this thing takes off like a scalded dog around 4,000-4,500 and clearly it shows on the dyno that the torque picked up is substaintial. You can definitely feel it. It pulls like it never did before.

It squeels tires 1st to 2nd, 2nd to 3rd.

To be honest with all of you, I would not go past the 228R with 112 LSA. .588 lift on I and E is as far as you would wanna go for a daily driver. Even with a good tune, you will experience a bit a surge from 1000-1800 rpms and where I was getting 28-30 mpg before on the highway. It gets more like 22-24 now.

Now with this said, most people don't buy corvettes for gas mileage and most people, including myself, didn't buy one for a daily driver. It still retains very good street manners. Not to mention I used racetronix 440CC injectors, some people say the Bosch injectors have a better idle and a much better spray pattern.

Perhaps a set of Bosch Injectors are more suitable for the daily driver? Would anybody clarify the difference in racetronix and bosch and if one is much better than the other?

 

Get it to the track that trap speed will either solidify the dyno numbers or discredit them. Dyno numbers shouldn't be taken so seriously, its only a tool for tuning.

 

I'll head down to Steele next weekend and see what I can do on the 1/4.

In the meantime I cleaned up the dyno sheet so people can really see the marks.

Had to basically overlay the original 370 horsepower bolt on dyno with the 450 dyno with heads and cam.

Check it out!



People say the 440 torque is bogus, maybe it is, but on my drive home I made mention that 4000 mark it has a "hit" that is literally comparable to a Honda S2000 when it engages the higher lift cam lobe around 6000 rpms... instant 30 ft-lbs of torque in that car, lol.

Of course our power gains are obviously much stronger, lol.

 

Where are you shifting the car with the new h/c?

 

Peak horsepower is around 6150 so I shift at 6200 rpms.

Basically it's pointless to go past that, plus shifting around 6200 puts you right in the meat of the power.

 

Love this car man, it's funny when you run a kid like I did today that people talk about is fast. (white 350z) only to pull him over ten cars, lol.

 

Actually that's not right at all. You're leaving ALOT on the table shifting that early. I shift my stock internal bolt-on car at 6200 rpm. A rule of thumb is shifting 500rpm past the point where you make peak hp. That's what a stock ls1 peaks at about 5700 and they shift at 6200. I'd bet you are leaving ateast 2 tenths on the table shifting that early

 

Hmm, i'll have to keep that in mind. Redline is set at 6700...

 

Need some double clutch action lol...

 

I can't remember if you said you're auto or 6-speed, but shift extension is also a big part in why you need to shift the car so many rpm over where it makes peak hp. That way when you shift it will come back down into higher rpm (you powerband).

 

Great numbers. People will hate.

 

Yep, I got out to see what it would do...

Let off at 170 mph, it was still pulling.

And, my car is a 6-speed.

 

Glad to see another happy 228R owner, looking forward to some track times.

 

Excellent numbers from a proven setup! There will always be haters, but as long as you are happy thats all the matters. I will be curious to see track times as well.

 

I am anxious to see track times as well. This is the setup I would like to run.

How is the streetability?

 

There is no way that heads cam setup should peak that low at 6150...that's LS6 cam territory. That dyno has been adjusted to give "happy" numbers...
The fact that you gained 80rwhp from the addons is pretty good! That's a nice jump in power. There is no way with your setup that you are legitimately making 443 lbft of torque on 346ci...but its still a stout car.
I ain't hating...you made excellent improvements...just that particular shop is not putti.g out legitimate dyno numbers.

 

ditto

 

X2...those dyno's are known for producing inflated torque numbers.