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Discussion Starter · #1 ·
What are the specs of the stock Z06 injectors and what are the maximum usable/realistic, power they can generate.

What are the next two (specs) likely injectors upgrades and there respective max power.

Need help with next steps:

If upgrading to the F.A.S.T. LSX intake, what is the typical power increases- I know the company says 10HP from a stock LS6 intake, but what is typical from a modified car. If adding a new T-Body(current ported t-body)which is best, going to the 78mm, 80mm or 90mm package. what are the power gains- is it cost effective?

Next, is the Meziere electric water pump- is it really 5-10hp on modified engines?

Next on my possible list is -MSD Blaster Coil for LS1/LS6, I'm guessing this might not really do much, if any thing, but don't know????

Current set-up:
I currently have a very light cam, by most on this forum- VHP 062 ASP-KICKER 2(using their or Crane's 1.72-1.80 variable rocker's)- 210/218 .551/.551 LSA 112- trust me, this cam is under rated and has lots of torque down low, and mid range while peaking at 6100 rpm's and only dropping 15 hp 6100 to 6700(rev-limiter).
This cam/head combo(Patriot stage 2 head, Patriot Gold springs with upgraded Ferrea valves) has a minimum of 350rwtq 3K-6.3K, 380tq 4.3k-5.5 and peaks at 405. Not looking to touch or change the Patriot's.

The next cam I'm thinking(maybe), is still somewhat light by most- VHP 056-Boss2 216/224 .551/.551 LSA 115. Both cam's have an overlap of -10 and an overlap of 52 vs 53 at .004.
Questions:
1. Both cam's have the same .050 overlap- I'm thinking idle quality should be the same. I'm not looking for a choppy idle. I like the idle as is, while it has a very light or slight chop. I'm not willing to move to a 224/224 LSA114/112 because of the chop. I want to keep the car as a sleeper- if not, the wife will complain! I think some of you out there can understand this.

2. Will/might the cam alone pickup 15-20hp, if so what tq might i lose, if any??

3. I'm thinking everything listed except the MSD coil, should give me 40rwhp and maybe 15rwtq?

4. Since my Patriot Gold springs have 2.5K, by the time I might do this, i should/might have a total of 5K on these springs. I'm thinking I can re-use these springs without any problems, since my cam lift is nearly stock at .551 and the Gold's are rated for .650- i believe.

Does all this sound right?
Costs without the MSD coils- With professional install and re-dyno tuning 4K-4.5K.

Lastly, please make any comments and/or recommendations.

Goal is 455+ rwhp- currently at 425.

Thanks'
 

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Stock injectors are running about 80% duty cycle at 400 rwhp which is the percent most inj. mfg. recommend.
You are probobly just about maxed out at 425.
 

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Discussion Starter · #3 ·
ok,
Thank's for the info... any other advance??
 

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Discussion Starter · #4 ·
No other info or views???
 

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FRC Tom said:
Stock injectors are running about 80% duty cycle at 400 rwhp which is the percent most inj. mfg. recommend.
You are probobly just about maxed out at 425.
Trying to remember what our stock injectors are, Tom? Is it 23lbs (it's been a long time since mine were stock :roll: )?

Mike
 

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I installed the SVO 30lbs when I did long tubes and cam
228/230 590 112LSA currently at 430RWHP
 

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MikesZ06 said:
Trying to remember what our stock injectors are, Tom? Is it 23lbs (it's been a long time since mine were stock :roll: )?

Mike
Stock injectors are 24 lbs at 3 bar (43.5 lbs) scaled to 28.03 lbs on the LS1s, the LS6s I believe use the same part# and are scaled at 30.94 lbs. At 3 bar this would be a 26 lb injector.
Our cars are 4 bar or 58 lbs.
 
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