• The site migration is complete! Hopefully everything transferred properly from the multiple decades old software we were using before. If you notice any issues please let me know, thanks! Also, I'm still working on things like chatbox, etc so hopefully those will be working in the next week or two.

CamShaft thoughts

Well stage 3 is supposed to be cleared to .65
so if he wants the duration to be short and the lift to be high, why not a stage 1 cam
and rocker combo?
 


Sx1 and some rockers don't sound to bad, BUT zzp once told me that the stock rockers are the best and are bullet proof.

On that chart, looks like the xpz made the most power overall
 
But look at the mods. They all had aluminum heads too
I don't know. Honestly I seriously was looking for the xpz for myself. But search the boards about people who installed it and said their 1/4 miles didn't change between xpz and xp. Matter of fact, search for the stage 3 intense cam as well. There is probably only a handful of posts that contain any useful info to help determine the better set up.

Bill here is a reliable firsthand source to vouch for the s1x / rocker combo.
Find someone with the xpz and another with the IS3. (Not me, I only have 1,500
miles with it so far )
 
That was a "claim" by someone on the 3800 site
seriously though. Just google the **** out the major forums and read - that's what I did
 


Kinda just fell into my lap at that point. Couldn't turn away a brand new cam for less that half of what it cost new
i took a chance since there wasn't any info more solid then a coin toss could provide anyways
 
I put somewhere around 15k miles on my xpz l26 comp g in less than a year, then sold it. The current owner has had it for 2.5 years, drives it everyday, and I think has put somewhere around 10k more miles on it. No problems at all.
 
Well that's good. But that really doesn't help lol
what mods
what 1/4 miles
any dyno
What stall concertor ? FD ratio? Etc......
 


No, XPZ makes same power non IC as s1x IC'd... It all depends on what 'supporting' mods are added : )

those are are all old #'s too I have saved in a file. There's some more too, I just wanted to give an idea...
 
Some more cam specs to make your brains hurt...

Normally Aspirated Camshafts Description Duration @ .050" Lobe Lift L.S.A. Centerline

Stock L36/L26: 182/192 .258/.258 N/A N/A CompCams 76-800-9: 192/200 .300/.310 110 N/A
CompCams 76-801-9: 200/206 .310/.300 112 N/A
Grand Prix Store L36: 206/212 .320/.325 113 110 ZZP GT1: 210/210 .317/.317 113 N/A Super Six L36: 210/214 .281/.281 112 N/A INTENSE Stage 1 N/A: 212/204 .322/.298 113 109
INTENSE Stage 1X N/A: 212/216 .327/.321 113 109
ZZP GT2: 216/216 .317/.317 111 N/A INTENSE Stage 2 N/A: 222/224 .337/.327 112 108
INTENSE Stage 3 N/A: 222/230 .339/.331 110 106 ZZP GT3: 224/224 .335/.335 113 N/A

Power Adder Camshafts Description Duration @ .050" Lobe Lift L.S.A. Centerline

Stock L67/L32: 182/192 .258/.258 115 N/A GPS L67 Cam 1: 200/212 .315/.325 115 N/A Stattama ST1: 206/206 .320/.320 111 N/A ZZP VS: 206/216 .320/.317 115 N/A ZZP HL/GPS L67 Cam 2: 206/218 .320/.330 115 N/A INTENSE Stage 1 Blower: 209/204 .305/.298 113 108
CompCams 76-802-9: 210/220 .320/.320 115 N/A
INTENSE Stage 1X Blower: 210/221 .321/.329 115 111
INTENSE Stage 1X Turbo: 211/204 .323/.320 116 110
Stattama ST2: 212/212 .325/.325 112 N/A ZZP XP: 212/224 .325/.335 116 N/A INTENSE Stage 2 Turbo: 214/206 .331/.320 116 110
INTENSE Stage 2 Blower: 214/222 .332/.338 115 111
ZZP XPZ: 217/225 .352/.333 116 N/A Stattama ST3: 218/212 .330/.325 113 N/A Stattams SS4: 218/230 .330/.340 116 N/A IPS Stage 5/ZZP NIC: 220/230 .317/.317 112 N/A
INTENSE Stage 3 Nitrous/Blower: 220/232 .337/.351 116 112
Thrasher Race: 222/222 .354/.354 114 N/A INTENSE Stage 3 Blower: 222/228 .338/.344 115 111
INTENSE Stage 3 Turbo: 223/214 .338/.332 116 110
Stattama ST4: 224/218 .335/.330 116 N/A INTENSE Stage 4 Turbo: 226/218 .343/.346 116 110
INTENSE Stage 4 Blower: 235/238 .375/.376 116 112

There's a bunch of custom grinds out there too you might be able to obtain the specs on if you ask nicely. Like Overkill's...

Overkill SBC
214/224 @.50 duration
134/[email protected] duration
116lsa
114icl
.507 lift w/1.6 stock rockers (.316 lift)


Overkill BBC
224/[email protected] duration
141/[email protected] duration
116lsa
116icl
.507 lift w/1.6 rockers


I have the BBC in an engine waiting to go in my car when I can get time to do it. Hopefully before the new year.

You'll notice some things that have worked in making power on Blower or Turbo engines, such as a longer duration on exhaust for Blower motors, contrasting a shorter one on Turbo grinds. Heads are a big factor, especially on exhaust side... Some big gains can be had if they're done right and you're exhaust is set up too. Anyways, lots of info to digest, have fun : )

don't forget the TUNE can make or break how it'll dyno and run no matter the mods...

Enjoy!
 
CrazyGuy03 said:
Well that's good. But that really doesn't help lol
what mods
what 1/4 miles
any dyno
What stall concertor ? FD ratio? Etc......
Click to expand...

Mods were:
Xpz
150# springs
Double roller
Ported heads
Hai
3" dp
Stock pulley
89 octane
All else stock. 3.29 comp g.

It made 266whp. Later, just before I sold it, I switched it to e85 and went to a 3.3 pulley. According to the maf, it was making somewhere around 325whp.

Never took it to the 1/4 mile track though.
 


Yeah thats a lot of info, most try to get it the first time but hopefully i pic the right cam that fits my needs and or wants.

Leaning towards xpz or sx2 cam
 
You must log in or register to reply here.
Back
Top