Nice Cam + Full Exhaust + Bigger injectors + 150 shot + tune + drag radials = 500+rwhp.

Might as well run a standalone fuel system while you're saving all that head and intake manifold money.

 

dr_whigham

were these the injectors you were talking about?

http://www.fuelairspark.com/fas/8-36...injectorshtml/

Should have a list of parts ready to go by tomorrow, have them posted up for review then.

 

Yes. They can be had for a 1/3 of that price though if you look around... I gave you the part #...

 

oh **** you did haha. My bad. I'll take a look around and see what I can find.

Anyway, here's what I've got:

Clevite bearings
Scat 6.125 rods
Wiseco pistons
ARH 205 heads (gonna get them milled to about 11.2 cr)
btr platinum springs
fast 92/92
still need to talk to Tony Mamo about a cam
stock rockers w/ trunion
ported ls6 pump
Monster stg 2 single disc

anything else?

 

check these out

http://granatellimotorsports.com/ind...parent=24&pg=1

im looking to add these just a wire upgrade gives 15whp

 

Where did you get the idea that upgrading your spark plug wires will give you 15 whp?

 

Seen the MS4, Fast 92/92 and 2.5 5. heads do more than 450rwhp numerous times

 

I personally wouldn't want to DD an MS4. I'm not saying you can't by any means, but you can hit that goal with a LOT less stick.

 

Im a firm believer that drivability is all in the tune.. A poor tuner can make a baby cam drive bad and a good tuner can make a monster cam drive smooth. My cam is a quite large cam and drives super smooth.

 

I have a cam thats between a MS3 & MS4 with PRC 5.3 heads and a Fast 92 on a 6.0. I can't imagine I'm any more than 450 rwhp to be honest, but it does run strong. Even with this combo I wouldn't want a cam that was much bigger when it comes to general drivability

 

^^^^There is truth to that. I cringe when I see people pick a cam for sound. That can be tuned. You can cut the idle speed and timing on a stock cam to get it to shake the car if you want. A bigger cam can be tamed.

That said, I also tend to think some of these cars are over-cammed. You reach a point of diminishing returns. And eventually, you reach a tipping point where if you can't take advantage of the larger cam (rpms, supporting mods) you actually lose power where you need it. Like my cam, I would consider a medium cam - 227/236. I could throw in a larger cam to get maybe 10-15 more HP, or I could replace the budget ported heads with heads that have far better low lift flow and take better advantage of the cam.

DR's point is very valid - you don't NEED the MS4 or similar to hit 450. Of course it'll do it, but you can do it on a milder cam with a broader torque curve. And he stated that with his driving preference. Some people love driving the polluter, which is a pretty big cam.

The most important factor is how the OP wants it to drive and act.

Reply meant for TyCZ28

 

And i agree with that. id consider the T-Rex, Polluter and MS4 a max effort cam were as the Torquer 2 and 4 and say most cams in the 230's range id consider a medium cam.

Alot of people would be just fine with the 228R but not every 228r cam out there is pushing 450+rwhp

Example of 2 cars ive built recently

2002ss 1 3/4 headers light ported ls6 heads ls6 intake 228/234 cam made 400/390

2000 T/A 1 7/8 headers 2.6 ls6 heads ls6 intake MS4 made 460/420

 

I always liked this affordable combo

https://ls1tech.com/forums/dynamomet...o-results.html

 

those are the heads i run ( no milling ), along with the ms3 cam,
and its very driveable. i do have a m6, so that certainly helps,
but its ALL in the tune, for sure.

 

I made 459 to the tire with the timing backed down for a 200 hit. N/A through a th 400 and 12 bolt with ls1 cathedral port heads MTI reworked them and a vindicator cam shaft. Both of witch are for sale.

 

Ls1 383 motor

 

Since it seems so easy to reach 450rwhp, in keeping with Tony Mamo's 'Do it once, do it right', has anyone gone to 500+ and kept driveability with stock displacement?

 

Has been done a few times in the past.
5.7 expensive with allot of attention to details including light clutch
And wheels/tires.
6.0 easier.
6.2 much easier.
Heads are better, Intake Manifolds are better/bigger, cams,springs,lifters,
are better. Still an expensive proposition with 5.7, M6 ~20 horses easier
Then autos.
What are you starting with and what is your goal/application?
Also search is your friend!
There is a very long thread about "RECIPE for 500RWHP"

 

Yeah sorry, I found that thread almost immediately after I made this post lol.

Considering the amount of work involved and my budget, I figure I'll just stay with my goal of 450.

At the moment, aside from a catback and an SLP lid, my car is bone stock.

 

Also, this is probably a silly question (and the wrong forum, I'll put up a topic there if necessary) but I'm planning my bolt-ons at the same time.

I was planning on a set of pacesetter 1-7/8"s with either TSPs y-pipe, or a custom one with a flowmaster merge. At this much hp, am I going to see any kind of restriction sticking with the single pipe setup? (Catback is a Magnaflow, btw)