showdog75

iTrader: (8)

All that with a nice conservative cam, I like it.

showdog75

iTrader: (8)

What's the rest of the cam specs? Off the shelf or custom spec'd?

RonSSNova

iTrader: (3)

EPS Pat G custom based on the LS1, AFR heads, Fast intake etc.

226/230 right around .600 lift, 114 +1

dont make me dig the cam card out! Ha.

I honestly looked into them specking a new one based on the CID, but the price was to high.
so kept in on a budget.

showdog75

iTrader: (8)

Not far from what Tony Mamo spec'd for my ls2 with his 223 heads and ported Fast 102.

AINT SKEERED

iTrader: (2)

This is a sweet set up Ron, drive anywhere and run10s, enjoy 26mpg driving back home

RonSSNova

iTrader: (3)

Thanks guys.

I’m pleased that it runs how I hoped it would!

Ron

AINT SKEERED

iTrader: (2)

Good 60ft

Darth_V8r

iTrader: (4)

Nailed your prediction lol! Amazing how the afr 205 continues to be relevant

RonSSNova

iTrader: (3)

I missed it by .001 seconds! And the prev run it went 126.26 cause it spun.

Appreciate your comments. You and I have been here for awhile. 😊

Ron

bortous

Wow.
That's a very good time for a mild combination.
Those 205 heads really work well.
I bet they are stump pullers.

SLP IROC-Z

iTrader: (14)

Looks like you picked up about 40 or 50 horse just from the displacement and increase in compression which is great. Have you put it on a dyno to see where peak hp is happening? I ask because you may go quicker by adjusting your wot shift points if you haven't already done so.

RonSSNova

iTrader: (3)

I might dyno it. Go back to the shop I worked at and have that info from the 5.7.

Wallace calc says 440 from the LS1, which is exactly what our Dyno Dynamics showed.

Wallace says 480 for this new combo. So it tracks pretty well.

Funny you mentioned shift points.
When I tested Friday, it was set to 6800. 2nd pass it refused to shift to third. I kinda figured that would happen. Getting the GM software to behave is more art than science.....
So lowered it to 6600, all was fine. And that’s where I left it. Data says it shifts closer to 6500.
So yess, particularly on the 2-3 shift, mo rpm would help.

A few thing from the HP Tuners data.
might be interesting.

The Yank SS 3600 now flashes at 3900. But it’s tight up top. Drops back to 5100 at the shift.
Injector duty cycle went from high 80’s to 106 %.
Delivered torque went up 50ft lbs.
just interesting stuff


Good observation. 😊

lazerlemonta

Congrats Ron! With a few tweaks i still believe it will go a bit quicker You get that 60' in the low 1.4s and your mid 10s will show up. MPH is solid too

Jimbo1367

That’s great. Such a mild and simple combination

RonSSNova

iTrader: (3)

Thanks! Would take gears and a Yank ss4000 to get there. Quite expensive for a C5.
But sure, can always rub a better ET. Weather dependent of course.

Precious few days left for racing here in Oregon.

I’d like to get the Nova out.

RonSSNova

iTrader: (3)

The turd went 127.49 tonight. Traction was ****. Car hooks up better on the street.
DA was 0

grinder11

iTrader: (1)

Personally, I lean somewhat towards cathedrals. I once had a Darton sleeved 427 C5, about a year before the LS7 debuted. When I started the build. AFR had just released the CNC ported 225s, which I thought would work well with the large 427. Plus there was no other aftermarket casting heads on the market at that time. Motor was built at Wheel to Wheel Powertrain, and had forged Diamond pistons, Total Seal gapless rings, Callies rods and Callies 4" stroke crank, an 85mm LS6 MAF, 90mm LS2 TB, Blackwing Air filter, FAST 90mm intake manifold, Kooks 1-7/8 LTs, 3" mid pipe, no cats, Flowmaster mufflers, a 160° thermostat, ASP 25% underdrive balancer, a Futral cam (232° intake duration, .598 lift-236° exhaust duration, .603" lift, 112° LSA), a 3.42 LS6 rear, and a Yank 3,200 stall converter, with a stock 4L60E. Best I could get was 11.90s@123mph, with a 2.2 second 60' time!!! Power was there for high 10s/very low 11s. BUT-Car was impossible to hook. When it hit 2nd gear around 60mph, it broke the rear 315/30/18 Michelin PS2s loose,, starting to go sideways!! Couldn't apply full throttle until after half track! I also got 25mpg on the highway when Premium gas was close to $4/gallon. I now have an LS7 engine, but it's not anywhere near the torque monster that 1st motor was.

bortous

The 225cc head is too small to feed a 427 engine.
Sure it would have monster torque off idle up to 4000rpm but then the engine would be bottlenecked.
I can imagine how strong it would have been though. I would say explosive.
You would need a 235cc head at a minimum to properly feed that size engine.
Camshaft was also way too small IMO.
It's missing at least 10 degrees more duration on each side.
The last sentence of your post is the reason why I went 245cc cathedrals in my 434.

grinder11

iTrader: (1)

I knew I'd get comments like this. Look, I once put 30,000 miles on it in NINE MONTHS with that motor!! BUT-I was comparing to Ronss. I had 80 cubic inches, and a bigger cam than him, even though you call it small. He obviously has a great running 350. My motor was hardly bottlenecked after 4,000 rpm. It's an automatic with a loose converter. It still made over 500whp on a stingy Mustang dyno, 15 years ago. 225s were the BIGGEST AND ONLY heads on the market back then. Sure, I could've gone 10° more on each side, and gone with more lift. Think about what I just said: 30,000 miles in 9 months, and it was stored for over 4 of those 9 months!!!! I doubt there's anyone, anywhere, who would question it is a street car. I had the best heads money could buy back then, even if you were Jeff Bezos or Bill Gates. I agree, it could've made more power. But when it can light up 12-1/2" wide tires at 60mph, how much more power do you want? It was dead nuts reliable, and I was happy with it. With slicks, and IF it didn't blow the rear end out of it trying, easily a 10 second car at only 3,250lbs. It was hairy at times, I'll tell ya. One time at the strip a deer ran across right in front of me at over 100mph. Talk about dirty underwear!!🤣🤣

RonSSNova

iTrader: (3)

Mine is a 376 6.2.
Not a 350.