Author Topic: Cams! (Read 10282 times)

Froos · « **on:** March 14, 2006, 06:41:03 AM »

Hi all,new member here. Glad a yahoo-group member pointed me to this forum!! I will be here for a long time.

Im going to rebuilt my engine and I was thinkin bout changing the cams for a beefier pair, but there is many choise out there....and since cams are new to me, my mechanical skills comes from restoring 2-stroke yamaha race bikes, i really could use feedback.

I found Bilas,Schrick, ACschnitzer and Kent cams. The ACschnitzers lists 150hp, but dunno if they are still for sale...
Bilas and Schrick have many different cam profiles..but no hp listings

I dont want a "only works on the track" engine, but gaining about 15-20 hp would be welkom. I dont mind changing camsprings either.

Next up:
Lightening the flywheel and install chip

Any thoughts?

dino245 · « **Reply #1 on:** March 14, 2006, 09:10:34 AM »

You have two options in this field, you can purchase a set made from new bilits or have a new profile reground onto your old cores.

I had a set ground from Delta cams in tacoma washington and I was happy with them and they were cheap, 75 bucks to regrind each cam so 150 plus shipping.

got to deltacam.com. I would write on the cams which one is intake and which one is exhaust. The cams might have an A or an E. A is for ausslass which is exhaust and E einlass which is intake.

Froos · « **Reply #2 on:** March 15, 2006, 03:41:10 AM »

Ok , but what only makes yous cam profile steeper right? I was thinkin about longer opening and more lift? Did you get test result from you cams? The other problem is that i live in Europe so postage will be phenomonal

Froos · « **Reply #3 on:** March 15, 2006, 04:30:30 AM »

Hmm, you dont believe this.....has anybody in the states ever heared of JRP JOHNSTON RESEARCH & PERFORMANCE INC,,GLEN BURNIE (MARYLAND) ??
http://www.jrponline.com/

They are distributer of a company called CatCams, which is based in Belgium, right around the corner from where I live! However none of them state any Hp gains when switching to different cams.
Can anybody see and explain the different in cam profile if I paste the specs of the Catcam in here?

kowalski · « **Reply #4 on:** March 15, 2006, 10:17:35 AM »

Quote from: Froos

Hmm, you dont believe this.....has anybody in the states ever heared of JRP JOHNSTON RESEARCH & PERFORMANCE INC,,GLEN BURNIE (MARYLAND) ??
http://www.jrponline.com/

They are distributer of a company called CatCams, which is based in Belgium, right around the corner from where I live! However none of them state any Hp gains when switching to different cams.
Can anybody see and explain the different in cam profile if I paste the specs of the Catcam in here?

i don't have time to read it right now, but i doubt they would claim no hp gains as cams can make huge hp changes. for instance on the small block chevy i have by switching a cam you can make 100 more hp, or in my case switching back to a milder cam loose 50-100hp and gain a couple more mpg (it only gets 5mpg).

i got custom cams ground and the specs on them were .388 lift and 264 degrees rotation. i'm supposed to see atleast a 10% increase in power, i havn't gone to the dyno yet, but i should be going this summer if all goes to plan.

edit: i can definatly feel the difference with the cams... i thought i'd throw that in there. i know numbers are more encouraging so ill get those as soon as im able.

Froos · « **Reply #5 on:** March 15, 2006, 01:37:09 PM »

Good stuff, now were getting somewhere, ill ring the guys at Catcams up tomorrow and ill post my findings here. However it will be used together with a chip since from what i've been reading today the most cams really help a lot above 4000rpms, just hope that under that mark I wont loose any. Plus ill shave of a couple of kilo's from the flywheel

kowalski · « **Reply #6 on:** March 15, 2006, 08:21:58 PM »

you will loose a bit off bottom end, and i have a chip, injectors, and a bit of head work to go with the cams. plus no P/S, removed a/c and electric fan conversion.

nickmpower · « **Reply #7 on:** March 15, 2006, 09:43:22 PM »

did your cams seem to make your idle sort of lumpy? i've also got the intake advanced

kowalski · « **Reply #8 on:** March 16, 2006, 03:27:36 AM »

Quote from: nickmpower

did your cams seem to make your idle sort of lumpy? i've also got the intake advanced

yeah, its a throatier idle. i'v had people ask me if i'v got some big cams in it a couple times:D
its really a nice sounding idle.
edit: also if i did it over again, i would probably even go more agressive. i went through air care with flying colors...

Froos · « **Reply #9 on:** March 16, 2006, 07:50:53 AM »

Ok i had a chat with CatCams:

duratie duratie max.lift lift in BDP parts needed
[0.1mm+s] [1.0mm+s] [s=0] [s=0] [-]
259 / 259� 224 / 224� 10.40 / 10.40mm 1.15 / 1.25mm O.E.M.

The specs of the cams Im looking at, no extra parts needed like valves etc. and gives 8~10% increase without any other change.

To kowalski, what is your cam like compared to this one above? They have different ones , more agressive, but they involve changing followrs and valves.
And pardon my english, but is air-care the exhaust test at the anual car checkup?

You might have to copypaste the specs above because I cant get the alligment right

Froos · « **Reply #10 on:** March 16, 2006, 08:52:46 AM »

Hmmm, according to the head sales dude at ACSchnitzer in Germany, the very last of their cam set was sold.......a month ago.......

2002maniac · « **Reply #11 on:** March 16, 2006, 01:53:38 PM »

How much does CAT want for their camset? BMP design also has a few cam profiles for the M42.

Froos · « **Reply #12 on:** March 16, 2006, 02:31:20 PM »

Jrp are asking USD$959, over here 595Euro incl tax...about $705 i guess thats quite a big difference. I got quoted 820Euros for schrick and Bilas ask 587Euros incl.
The only thing is that CatCams say (on their website) its for the M42 E36 1800cc engine, but I geuss thats okay to use.
Bilas also makes plug-n-play multi throttle body intake systems, which will give another 19Hp....but it will set you back 1495Euro's (multiply that by 1,17 and you get USD)...

e9nine · « **Reply #13 on:** March 16, 2006, 05:44:56 PM »

So the choice here seems to be getting reground cams and headwork vs getting fresh "performance" cams with no other tuning.

I am not in the position to tinker with my cars but I'd probably go with a used cam or reground cam and headwork if I were to make the choice. Power comes at a cost regardless of approach, I'd prefer to get the best value for my inve$tment.

Key traits here are getting a worthy power gain for the effort put in. I would not go "cheap" but rather inexpensive to get something without a bottleneck (a.k.a halfassed)

Does anyone here have cams (reground or fresh) with headwork and/or accompanying electronics like a MAF upgrade?

kowalski · « **Reply #14 on:** March 16, 2006, 06:49:02 PM »

Quote from: e9nine

So the choice here seems to be getting reground cams and headwork vs getting fresh "performance" cams with no other tuning.

I am not in the position to tinker with my cars but I'd probably go with a used cam or reground cam and headwork if I were to make the choice. Power comes at a cost regardless of approach, I'd prefer to get the best value for my inve$tment.

Key traits here are getting a worthy power gain for the effort put in. I would not go "cheap" but rather inexpensive to get something without a bottleneck (a.k.a halfassed)

Does anyone here have cams (reground or fresh) with headwork and/or accompanying electronics like a MAF upgrade?

i have cams headwork and injectors. im working on the MAF, hopfuly doing MS this summer...

as to the person wanting to know my cam specs
would be 264 degrees compared to your 259, and 9.8552mm lift to your 10.4? i was told i would see a dyno'd proven 15% increase or more in power. he has ground a few cams for these cars, and dyno tested them. i'm also a friend of his so its not BS. i will heading to the dyno hopfuly this summer if all plays out, so i will have some numbers hopfuly:).
and yes air care is the anual inspection on the cars emision system
personaly if i were going to do it over again, i would get larger cams, larger valves, stiffer valve springs, and upgrade the lifters. also get port and polishing done on the head. unfortunatly i didn't have time for all of this, i only had 5 days, so i did what i could, and so far im very impressed.