Milan

I'm currently sitting around 700 whp, still on an essentially stock LS6. I am looking to get a little more power out of the stock block, not sure which direction I should go, and need advice. I'd like it to survive through the summer, and get a forged motor build going for the winter.

Here is my current setup:
02 Z06, A&A kit, T-trim
3.4" pulley, 6 rib
Kooks 1 3/4" headers
PAC 1512 springs, Trickflow hardened pushrods, YellaTerra 1.8 roller rockers

Everything else motor wise is stock. I have enough clutch and fuel system for quite a bit more power. Max budget I want to throw at this is $1000.

1) Ditch the roller rockers and buy a cam
Probably best bang for the buck right now, but I'm worried that it will a) make too much power and b) not worth my time since I want to build a motor this coming winter anyway, much easier to do a cam in a motor that's already out

2) Get a Dewitts and SPAL fans and do the 4" intake mod
This is probably what I am considering the most right now. From everything I've seen, I will pick up 1-3 psi, should be a nice 20-50 whp gain, and put me right around the power range I want to be at. Also will be nice to have when I swap a forged motor in.

3) Convert to 8 rib
Also considering this option. The OD pulley would give me the extra boost I need, and the 8 rib would be good anti-belt slip. What I don't like is the cost involved $1100 for the 8 rib conversion then $150 for a new pulley, and the fact that this is another mod that would be much easier when I swap in a new motor

4) Sell off the T-trim and buy a Ysi
Bigger blower = easier to make more power. The problem is that I have a V3 T-trim, meaning I would still be just about as labor instensive as the cam or 8-rib swap because I still have to drop the rack

So what do you guys think? Which of these would be safest? I'm pretty confident in my tuning abilities, but I do realize that at this power level that **** could happen at any time. The way I see it is the cam is probably the best bet from a safety standpoint since it doesn't involve adding more boost, while the dewitts/4" intake is probably the easiest to do, but also likely to yield the least returns.

Thanks guys

BLOWNBLUEZ06

If you can't afford to be wrong, don't change anything.

If you can, get the YSi and step up your header size. The blood on your knuckles will dry soon enough.

I don't like 1.8 rockers

Better to do a Direct Drive and balancer than the 8-rib kit.

5 Liter Eater

I haven't even read the thread but I had to LOL at the title. "one more mod", man does that sound familiar. You know you're going to end up doing them all so just pick whatever one you want to do now.

Milan

It's not going to be the end of the world if the motor blow, I rarely drive my car as it is, I would just prefer that it last through the summer. The extra 50 whp is worth the risk to me.

I thought about stepping up to the 1 7/8 Kooks....it's just that so much swearing was involved to get my 1 3/4 in, I don't want to go through it again lol

Edit:

Bill, you are 100% correct, I will definitely be doing them all. Just wondering which one makes the most sense for now

golfinz

Wait to put the 1 7/8 in when you build the motor.

I vote 2, then do 4 and 3 when you build the motor. The radiator and fan will help with heat during the summer months

jmuck

Step up the exhaust. Go to either 1-7/8 or even 2" headers. Depending on the cat back, throw some cut outs on it.

Ditch the rockers, go back to stock and throw a cam in it.

Screw the 8rib and get a direct drive.

95wht6spd

Do you have meth?

Blitzkrieg

Meth is a must?

1 more mod??? Thats pretty funny

tlove32

Get a YSi......and sell me your T-trim

Milan

No my car is on E85.

What's the going rate for a used V3 T-trim headunit?

Turbo-Geist

After reading your post, I think I can see what you are really after.

You want to reach about 750rw, you don't want it to involve extensive work, and you want it to be able to be used on your next build.

Given your four choices listed, I would go for either #2 or #4.

You didn't mention what the rest of your exhaust system entails. Is there a chance you are restricted after the headers?

How much boost are you currently seeing?

I just noticed that you aren't using meth. Which is better from a power standpoint, meth or E85?

Milan

My exhaust is Kooks 1 3/4 headers, no cats, and Borla Stingers.

At sea level I was seeing like 13 psi, here in Idaho its more like 11-12 because of the elevation

Turbo-Geist

I see. In that case, there isn't much restriction on the exhaust side.

I stand by my recommendation of option #2 or #4.

You must be making your power with the E85. It typically takes over 14psi with 93 oct and meth to reach 700+.

How much timing are you running at peak hp?

I'm just curious to see how much more timing you are running with E85 compared to pump gas tunes that I am familiar with.

0Arun@CCP

I would ditch the 1.8 rockers, put a return line on the car and put on a 3.125 pulley.

Milan

Car has a return line already, the fuel system is a pump upgrade away from 1000 whp on E85, not worried about that.

Do you really think 3.125 will be possible on a 6 rib without a flip drive or going to 8 rib? Also why does everyone hate on the 1.8 RR's? I know a cam is better but I got these just to hold me over

0Arun@CCP

Valevtrain stability, honestly-I don't know why anyone doesn't make a 1.6 or 1.5 rocker option for the LS platform.

Has anyone noticed some of the superfast blown Ford's run 1.5 rockers-and the stock rocker is a 1.6?

You won't believe the amazing things a pushrod motor can do when the valvetrain is super stable.

madmatt9471

I suggest:

(1) Flip-Drive set-up from Cartek

(2) Innovators West OD Balancer

(3) Re-tune, Dyno

Thanks,Matt