My list of best max effort cams inside
My main goal is to have plenty of torque down low as it will be driven on the street often with a PT4000 converter with 3.42 gears. I don't want to have to keep revs up all the time.
Thunder Racing TR230 "Reverse Split" Camshaft
230/224 .575/.563 111 LSA
MTI Signature X1 reverse split cam
230/227 .591/.571 112LSA
MTI Signature R1 split cam
232/236 .575/.578 112LSA
LG Motorsports G5X-2 Cam
232/240 .595/.609 112LSA
TSP Custom 232 Reverse-Split Pattern Cam
232/228 .595/.588 112 LSA
TSP Custom 231/237 Cam
231/237 .598"/.595" 112 LSA
The GM Grand-Am cup cam would be considered max effort or something similar. Something in the mid-upper 240's duration, 110 or lower LSA.
Josh

And I would think these are large enough to call max effort. These are some of the largest grinds available for our stock displacement engine. With exception to the new secret cams coming out (ie G5X3, "magic stick") IMO, but to each his own I guess.
I'm kinda leaning towards the R1 grind from MTI.
Trending Topics
The Best V8 Stories One Small Block at Time

Further, any of those cams will need more than a 3.42 gear to be 'properly setup'. I think you will need atleast 3.73's for any of those cams to operate somewhat efficiently down the track. 4.10's would be even better--that's why I went with them. Remember, the bigger the cam the higher you will need to rev it to get the most out of it.
Last edited by Mike Hoffpauir; Nov 3, 2003 at 09:18 PM.
What is this new Thunder cam specs??
Peoples description of max effort is different for every person I guess. I will definately be getting some nice heads to go with, this large of a cam.
I thought 232 is the largest intake duration you can go without flycutting or am I missing something.
personally i'd go with a TR224 112lsa and get some nice heads. you'll have an excellent mid range and top end power and will be over 400rwhp. dont try to overcompensate by just stuffing a huge cam in just to hit 400rwhp.
I am in the process of installing this in my car right now. Per Thunder no flycutting pistons and Comp 918's will be fine. I will be sure to post sound clips and impressions of the cam before and after serious tuning. Also Dyno/track results.
For rolling around I agree with your statement, but for drag racing this will be no where near enough gear for any of those cams. 3.42's would produce lackluster 1/4 mile times with any of those cams.
Cstraub





