sthornburg

I have a 2007 M6 Coupe with the following performance mods:
4.10 gears / Stage 3
18" rear wheels with Nitto 555RIIs
Ported FAST 92 manifold
Ported throttle body
LG Long Pro headers
High flow cats
LG G5X3 cam
Underdrive pully
Breathless intake
Corsa sport exhaust
160 degree thermostat

RWHP before 4.10 gears = 444; Torque = 420

I am ready to add Trick Flow 225 heads and plan to change the cam to compliment the heads (for a daily driver) if I can make decent gains with a cam swap. I would like to bump the compression either by milling the heads or using a thinner head gasket and tune to run on 91 octane at sea level. (The current tune is for 91 octane at sea level.)

I have followed SpinMonster's posts and other posts on the forum and am considering the following cams based on what I have read "to date":

236/236 115 LSA at 11:6.1
235 LSK / 235 XER 114+3
235 LSK / 235 XER 115 +2
230 XFI / 234 XER 114+2

Does anyone have experience they can share with anticipated gains (RWHP/Torque) with the cams listed. I am shooting for 500 RWHP with as much torque as possible while maintaining streetability; however, will give up RWHP to maximize torque.

I am also considering meth injection without adding meth injection into the tune for a safety factor.....and do not want to factor this into the 500 RWHP I am shooting for.

SpinMonster - Which cam do you currently recommend and at what compression (amount to mill heads and recommended head gasket to use)?

LSCHLEM

Spinmonster has developed Cams for the LS2 as well as the LS3. Yes his
Cams make power but he puts driving manners as a high priority. Having said that they are not max effort Cams. Getting to 500rwhp w a snappy
and flat torque curve with Trick Flows suggest Milling as well as a thinner gasket to get Compression. I had the heads milled to yield 11.8 CR . The
stock heads are 65cc and mine are 59.5cc. As it turned out I used Spins
earlier Cam with this setup and got to 500+ RWHP. Spin had recommended
the 230/234 Cam but I went with the proven 228/232. I could of had more HP/TQ if I went with the 230/234. Now I am considering the LSK 235 If I
dont go FI. Another Cam proven to get to 530RWHP is the G6X3 backed up by 10.5x @ 132. There is however some driveability problems with this one. Good luck with your goals, I'm sure Spin will help with more specifics.
Leon

Neumonic2002

I don't see a 235 XER lobe on my list, I see a 234 and a 236 though

I thought about doing a 235 LSL / 238 XER setup with a 113 + 2 myself..

LSCHLEM

I think the Lobe you are referring to is the 235 LSL/235 xer 114 +2. That was the last one I was considering. I will probably go with that after a consult with Spin. I have all the other stuff when you think of it. Springs,
Push rods, Roller rockers . Even a pinned Crank w UD.

Back to the OP he has a almost identical setup as mine less the CAM. With the Trick Flow heads he should make 500 RWHP with any of the mentioned Cams. If he is at 444 rw the 4.10 gears are a 10 or 12 RWHP Thief. I do factor that in when I Dyno because it does not rob engine HP but does upset the dyno calibration.

old motorhead

What are the specs on the cam you have now?

sthornburg

Not sure of the specs - LG Motorsports G5X3

sthornburg

My Dyno was before the 4.10 gears were installed; everything else listed was installed before the Dyno.

sthornburg

I agree that the G6X3 is proven.

I'm looking for a cam with better driving maners. I'll give up a few HP for better driving manners and torque that pulls like a freight train.

Joe_G

How does your G5x3 drive? Mine's great, a little shaky while cold but once warmed up anyone can drive it. I spent a fair amount of time dialing in the street tune myself, and I'm very happy with it. Have you street tuned yours? That made a huge difference for me.

sthornburg

My G5X3 drives great! I lowered the idle down to 850 RPM to ease slow in town driving which created more idle lope and car shake which I down't mind. LG Motorsports makes great products as well as provides great service IMHO. I have considered the G6X3, however, I was persuing a SpinMonster cam letting the heads dictate the cam and compression for 91 octane at sea level (possibly giving up a few top end HP). I assume a SpinMonster cam will have better driving manners than the G6X3. However, I recall reading a post by SpinMonster after he rode in a car with a G6X3! Hopefully SpinMonster will chime in and provide a recommendation.

Any posts identifying HP/TQ and cam/compression with trick flow heads and 4.10 gears would be appreciated.

JayplaySS2

Since it has been brought up, what does a G6X3 usually make on an LS2 with stock heads? Just curious and I guess I'll do a search too-

LSCHLEM

Any posts identifying HP/TQ and cam/compression with trick flow heads and 4.10 gears would be appreciated.
Today 08:51 PM.

The closest I can Identify with is DSP 300. He has milled Trick Flows,
4.10 Gears and a G6x3 Cam. When talking to him he said the car bucks a little at slow speeds and has some small issues which he learned to drive the car and is happy with the G6x3. He also has the RWHP H&c Record at 527 and the Quarter mile Record. This G6x3 is a monster for power with the TF HEADS. I know many of us like specs but LG keeps them proprietary. Check His Signature. Leon

sthornburg

Which of the two LSK 235(s) are you considering?

FloydSummerOf68

If you want a max-effort cam I would consider talking to Pat G and having him spec one for you. I don't know anyone who gets the numbers that he gets out of setups (most recent amazing event was hitting 500 in a cam-only LS2)

Joe_G

He actually does it as a business for $25 a whack (Google is your friend).

He does indeed spec out some killer builds over on LS1 Tech. Has been doing it for years now.

Would be nice to get SpinMonster's comments too. Perhaps he'll chime in.

To the OP....why not just use your existing cam and slap the heads on? Heads are an easy swap relatively speaking. I would personally LOVE to see what your numbers would with the G5X3 and the Trickflow heads...

FloydSummerOf68

I hope you didn't include that "google is your friend" comment for me. I know all about Patrick G's business and how effective his setups are. I have followed him for years on tech.

It's $25 well spent, as many have found out

When I do my cam Patrick G will be getting all of my information to give me a grind.

Neumonic2002

I am not sure that cam would fit w/o flycutting?

Pretty rowdy grind though!

Joe_G

Naa, not for you specifically. It's likely that others didn't know that he does this service. I happened across it one day and thought others might like to know. I was going to just throw in a link, but I realized that the forum powers would probably not like that.

C6nexttime

Used LSL or XFI lobes with trickflow heads. I would stick to those two. A great off the shlef one is comps LSL 231/239. Spins cams are great too. I am sure he will chime in here soon.

FloydSummerOf68

Well the $25 bucks is removed from the cam price if you go through one of his cam vendors.