Kryckter

iTrader: (4)

Just got the car all finished up. The setup includes:

- PRC Stage 2.5 5.3 heads
- Fast 90 / 90 Setup
- Fast 39 lb Injectors
- SLP Underdrive and MAF
- 23x / 24x - .600 / .610 Cam
- Electric Water Pump

We ending up flycutting the pistons to allow for some extra clearance. That enabled us to surface the heads a little more to squeeze some extra compression out of the setup.

Jason, and all the guys at Texas Speed were a huge help in getting this thing tuned in and making great power. I was very impressed with the final numbers, these heads look and perform amazing.

After all the tuning and messing around with it, it ended up making 488 RWHP and 428 RWTQ.


I will have a graph hosted tomorrow night.

SLP4CamaroSS

iTrader: (16)

nice numbers did u put a g5x3 in it?

Kryckter

iTrader: (4)

Yeh, its had that cam since it was a cam only car. Im looking at changing to a TSP grind soon.

TRU-2GM

iTrader: (6)

those are very nice numbers...who did the flycutting?

Mr.MartyStone

iTrader: (12)

Was the fast setup out of the box or ported?

'99pewtert/aff

Damn dude nice numbers. I have my 5.3l (stg 2.5)heads and my fast 90/90 sitting in the room next to a tnt f2 kit waiting to go on. Numbers like these are making me wish I could install that **** tomorrow.

Dr. Jeckel

iTrader: (12)

Congrats to you and Brady for a hard/long couple of days work...Glad to see it put down awesome numbers

erikthegoalie

iTrader: (29)

Either something is up with whatever Dyno these cars are using...or my car sucks ***..

I have the MS3, and the same dam heads...90/90, all that BS, EWP...blabla and my #'s are in my sig...WTF!

Is the G5X3 that much more superior to the MS3???

This pisses me off so much I am contemplating changing set ups...

Nevertheless, NICE NUMBERS!

Photochop

iTrader: (74)

No its not superior.

The MS3 has made some freak numbers on a few cars too. Nice numbers!.....but the dyno numbers of this car don't tell the whole story...take it to a track and see what it traps to validate them

Dr. Jeckel

iTrader: (12)

I hate to be like this, but you get in every post where the 2.5's are used and just complain about your numbers with the MS3. You're still making better power than alot of other guys that have similar mods and no the MS3 is not really inferior to the G5X3. I understand you're depressed about your numbers, but don't go into other peoples posts and get off topic where people start trying to diagnose your problems. You have plenty posts already for that, so leave your problems there.
Joseph has a very strong car, he made 434 before the heads and now gained 55 more with heads and EWP, which is right on the money. He also used a thinner gasket and said the heads were milled a little more.

Sorry Joe...now lets see that graph!!!

STRIPSTAR

iTrader: (4)

um, yeah I definately want to know how much was milled and the gasket size. Im laying out the same setup.

Patrick G

iTrader: (14)

Killer combination of parts all working together!

WickedC5

iTrader: (3)

Congrats on an awesome combo! These heads have been putting down some really good numbers. I might have to add them to my setup soon. Can you tell us what gasket you used and about the milling? thanks.

-Al

Kryckter

iTrader: (4)

We did the flycutting, meaning myself and a friend. (Thanks Brady!)

The fast intake is out of the box, no porting.

We flycut around .090 on the intake and .095 - .100 on the exhaust. I used the .040 cometic gasket and the heads have been milled around .030 total. Compression, taking the valve reliefs into consideration should be around 11.1 or so.

And Dr. Jeckel is very close, it did 437 cam only, so this is about what we were expecting out of the setup. With a good strong bottom end, and the right combination of parts, including all the small stuff its becoming pretty common to make the appropriate numbers.

STRIPSTAR

iTrader: (4)

I think your off on the C/R. My calculations came to 11-1 with a 040 gasket and no mill. flycutting negative cc aside. Can you clarify for me thanks

STRIPSTAR

iTrader: (4)

besides a slightly smaller cam i have the exact parts but dont expect those numbers

Kryckter

iTrader: (4)

I got 11.18 with the calculator figuring in .026 milled off the heads and a 4cc dish in the pistons, and the .040 compressed gasket.

erikthegoalie

iTrader: (29)

If you had spent the time, money and effort I did, on the same (more or less) set up, and made 25+ HP less, and a SHITLOAD less in torque, you'd be confused too, trust me..

I realize I bitch in every 5.3 thread...but WTF...

You're telling me a slight mill and a different gasket is the major factor here? I don't think so fellas...

I just have a factory UN-freak ...

Rant over- apology for the repeat hijacks, NICE numbers...rock on!
Erik

Photochop

iTrader: (74)

From the sound of things man your car made great numbers. Every dyno is going to be different. Our local fbody shop's dyno frequently reads -25~ rwhp that other infamous dynos from across the country. BUT the cars from that dyno run just as comparable at the track as the others do. Dyno numbers, just like flowbench cfm readings can be easily skewed either direction. The only way to really tell the difference between a couple cars is to line em up or get them to a track with similar conditions and driver experience. Your car is no slouch, it's sad to see you are thinking about or already sold your setup. It was stout and had some good ET/MPH in it for sure.

Both of you guys need to hit the track and enjoy what you put together!

Kryckter

iTrader: (4)

I plan on taking it to a track, but since our local track is closed, and who knows when it is re-opening. I may need to plan a roadtrip to go run it.

I know the dyno this car made power on is within 1-3 RWHP of another local chassis dyno. For what its worth....