Cam and Head Package?

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Aug 13, 2009 | 05:40 PM

#41

AU N EGL

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From: Raleigh / Rolesville NC

1 7/8s on a 346 ci ?

Leaving a LOT of low end torque with 1 7/8s would you not?

IMHO stick with 1 3/4 headers

Aug 13, 2009 | 05:43 PM

#42

zeevette

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From: Pasco WA

Quote:

Originally Posted by 0Stealth0

So between AFR and TrickFlow and ??? Which would you buy and what mods would you have done to the heads for 460-470rwhp application?

See my sig. Heads milled to 61cc and last dyno with clutch slipping/burning was 483RWHP, and that was before the EWP, and really perfect tuning. I agree with GoldenEagle-stick with 1.75" headers, and I prefer the true LTs like LG.

Last edited by zeevette; Aug 13, 2009 at 05:45 PM.

Aug 13, 2009 | 06:10 PM

#43

Frans96ss

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From: New Castle Del.

St. Jude Donor '09

Quote:

Originally Posted by AU N EGL

1 7/8s on a 346 ci ?

Leaving a LOT of low end torque with 1 7/8s would you not?

IMHO stick with 1 3/4 headers

Not true. People have done back to back test and the 1 7/8 actually out performed it down low and up high.

Aug 13, 2009 | 06:41 PM

#44

Y2Kvert4me

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St. Jude Donor '03

Quote:

Originally Posted by AU N EGL

1 7/8s on a 346 ci ?

Yes, definitely.

Quote:

Leaving a LOT of low end torque with 1 7/8s would you not?

IMHO stick with 1 3/4 headers

Have any graphs of your back-to-back testing? That would be the easiest way to prove your point.

Or are you just echoing what the marketing machine fed you?

Aug 13, 2009 | 07:04 PM

#45

AU N EGL

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From: Raleigh / Rolesville NC

i thought that is what the testing showed? Do you have any?

I am the LAST person that any marketing machine would feed. My FEES are too high

Aug 14, 2009 | 04:08 PM

#46

0Stealth0

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From: Lancaster Pennsylvania

Ok so I called Seth at Hinson Supercars and this is the package that we worked out.

Let me know if you guys see anything I should add or maybe give suggestions on the cam choice and how it will feel / sound / drive as a daily.

Just some overall input on this setup would be nice!

Thanks!

* LG C5 1 3/4" Street Series Long Tube Headers w/Catted X-Pipe
* Trickflow 220cc As Cast Cylinder Heads (not CNC but Seth said only 3% airflow loss)
* Mill Heads to 59cc
* ARP Head Bolt Kit LS1
* ARP Assembly Lube (1.69oz)
* GM MLS Head Gaskets 5.7 LS1
* Yella Terra Ultralite Rockers, LS1, 1.7 Ratio Non-Adjustable
* GM LS7 Lifters
* FAST 36# Injectors (LS1,LS6)
* Comp Cams Camshaft (230/236 .612/.607 112 LSA)
* Comp Cams Pushrod Length Checker
* Comp Cams Magnum Pushrods 7.xxx
* SLP 25% Underdrive Pulley, Corvette 97-08
* Serpentine Belt for C5 & C6, using SLP Pulley
* FAST Intake - GM LSX 92mm
* GM LS2 90mm Throttle Body
* Harness TB - Adapts GM LS1 harness to GM LS2 throttle body
* FAST Intake Port Seals (Set of 8)
* GM Front Cover Gasket
* GM Front Main Seal
* GM Water Pump Gasket

Aug 14, 2009 | 04:18 PM

#47

AU N EGL

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From: Raleigh / Rolesville NC

I like that.

Good Luck

Aug 14, 2009 | 04:28 PM

#48

AU N EGL

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From: Raleigh / Rolesville NC

Quote:

Originally Posted by Frans96ss

Not true. People have done back to back test and the 1 7/8 actually out performed it down low and up high.

Cool I would like to see something on that. especially the 2500 to 5200 rpm range

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Aug 14, 2009 | 04:29 PM

#49

Y2Kvert4me

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From: Gone

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St. Jude Donor '03

Did Seth advise you on what your actual p/v clearance might be with that cam and those milled heads?

Aug 14, 2009 | 04:48 PM

#50

0Stealth0

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From: Lancaster Pennsylvania

Quote:

Originally Posted by Y2Kvert4me

Did Seth advise you on what your actual p/v clearance might be with that cam and those milled heads?

Nope. Why?

Aug 14, 2009 | 04:54 PM

#51

AU N EGL

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From: Raleigh / Rolesville NC

Yes ask him about that

with the .59 mil the .612 may be too much lift.

Your original cam will clear

Aug 14, 2009 | 04:56 PM

#52

0HinsonSuperCars

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From: Birmingham, AL www.hinsonsupercars.com 205-909-9402

Quote:

Originally Posted by Y2Kvert4me

Did Seth advise you on what your actual p/v clearance might be with that cam and those milled heads?

Shouldn't be necessary. It's always recommended to check though. Keep in mind that the Trickflow's have a 13.5* valve angle.

Seth

Aug 14, 2009 | 05:34 PM

#53

zeevette

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From: Pasco WA

Quote:

Originally Posted by 0Stealth0

Ok so I called Seth at Hinson Supercars and this is the package that we worked out.

Let me know if you guys see anything I should add or maybe give suggestions on the cam choice and how it will feel / sound / drive as a daily.

Just some overall input on this setup would be nice!

WOW! Great looking list! You will get alot of gas stink with that cam at idle, even with cats, just so you know. Looks like you really cut loose the wallet.

Aug 14, 2009 | 05:39 PM

#54

AU N EGL

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From: Raleigh / Rolesville NC

Quote:

Originally Posted by HinsonSuperCars

Shouldn't be necessary. It's always recommended to check though. Keep in mind that the Trickflow's have a 13.5* valve angle.

Seth

then he should be cool

Aug 14, 2009 | 05:52 PM

#55

Y2Kvert4me

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St. Jude Donor '03

Quote:

Originally Posted by HinsonSuperCars

Keep in mind that the Trickflow's have a 13.5* valve angle.

Seth

And you should keep in mind the TFS heads only offer .005" more free valve drop compared to a stock LS1 head.

Revised valve angle helped, but the larger valve diameter took it right back.

Now whack .030" off the deck to get to 59cc, and see what happens.

I'm not saying it's a recipe for disaster, but it is definitely close enough to warrant checking. If I were recommending and selling such a package, I would have already done it and have some real measured data to offer.

Or, maybe I'm just confused why I recently helped a guy flycut his 61cc TFS setup with a 232/236-113 cam because he only had .040" p/v clearance. Everyone here told him it would clear easily....until install time.

Aug 14, 2009 | 06:00 PM

#56

Y2Kvert4me

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St. Jude Donor '03

Quote:

Originally Posted by AU N EGL

Yes ask him about that

with the .59 mil the .612 may be too much lift.

Your original cam will clear

Peak lift has NOTHING to do with p/v clearance.

Peak lift occurs when the piston is several inches down in the cylinder.

p/v clearance problems occur very near piston TDC, as the valves are just opening or closing.

Aug 14, 2009 | 07:02 PM

#57

AU N EGL

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From: Raleigh / Rolesville NC

Quote:

Originally Posted by Y2Kvert4me

p/v clearance problems occur very near piston TDC, as the valves are just opening or closing.

I stand corrected.

Aug 14, 2009 | 11:02 PM

#58

0Stealth0

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From: Lancaster Pennsylvania

So I am good with this setup or I should be concerned?!? LoL I do not want to get heads I can't use

I wasn't even taking gas mileage into consideration with this setup

How much mpg city / highway with this setup will I get?

Thanks for the input everyone!

When I usually do something I usually go ***** to the wall

Aug 15, 2009 | 03:05 AM

#59

zeevette

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From: Pasco WA

Quote:

Originally Posted by 0Stealth0

So I am good with this setup or I should be concerned?!? LoL I do not want to get heads I can't use

I wasn't even taking gas mileage into consideration with this setup

How much mpg city / highway with this setup will I get?

Thanks for the input everyone!

When I usually do something I usually go ***** to the wall

Your setup looks like a wet dream H/C deal. I increased my mileage 2 MPG to 27 highway, AFTER my mods. The problem is in town, it's so much fun to get on it just a little bit more, the mileage really suffers.