415, 420, 422 camshaft advice

[Sy Guy 0024]

I came across the comp 420 cam in my searches and wondered if I could get some input. Here is how it stacks up against the other more popular off-the-shelf syty cams, falling in between the 415 and 422:
412 415 420 422
duration 206/210 210/215 215/215 215/220
lift .500/.500 .500/.500 .500/.500 .500/.510
LSA 112 112 110 114

I know that a custom cam is the best way to go, but I was hoping to avoid a $400 cam. Like many of the custom grinds I have seen, the 420 does not have a split duration. However, the LSA comes in low at just 110. How do you think this would perform vs. the standby 415 or 422?

My instinct is to go with the 415; I have read both good and bad about the 422. I am running a 3400 stall, PT54, Vortecs, 50s, and will be using the 1.6RRs I have. So the lift numbers will actually be .534 instead of .500. Any thoughts are appreciated, I have been mulling over this for a month now.

 

[Quickstop [UK]]

Re: 415, 420, 422 camshaft advice

street or strip? - my understanding is that 412 is more street and 422 is more strip./afggressive with the 415 obviously in the middle. I went with a 415 for my vortec build and compared it with someone on here that got a custom cam there wasn't a huge amount of difference.

If you are after compromise at cost for a proven cam, seems like 415 is the way to go and you will be happy.

Having said that, what difference is $150 going to make if you really want the custom cam. You'll perhaps be happier? E RUE makes em!

415 is proven though.. HTH

read here for other people's experience

 

[Sy Guy 0024]

Re: 415, 420, 422 camshaft advice

Thanks, saw that thread about the 415. :tup:

I know $150 isn't that much, but I'm almost $4k into my build now and the funds are drying up REAL fast.

What about the 420 cam? The only reason I ask is that the 420 is in stock, and the 415s aren't scheduled to ship until the middle of Jan. Just wondering if it's a viable option.

 

[nallj92]

Re: 415, 420, 422 camshaft advice

i have 422 and love it.. bigger lsa usually better..

 

[Quickstop [UK]]

Re: 415, 420, 422 camshaft advice

If I am right, the valve overlap gets larger as you increase the numbers.

420 might be ok but I have no idea.

Makes it harder to tune etc. Where are you getting your cam from? Lots of places have them in stock!!

 

[dgoodhue]

Re: 415, 420, 422 camshaft advice

On the 420, the lobe seperation is too small for a turbo boost motor. On NA motor the valve overlap uses the exhuast flow vacuum to pull intake mixture in. On a boost motor this overlap is going to have the motor fighting the exhuast back pressure of the turbo and boost pressure on the intake while both valves are open.

 

[cloneman315]

Re: 415, 420, 422 camshaft advice

i have a 415 and it runs very well,keep in mind if u go with a proven cam that works it will be easier to find a chip for it,unless you are going to be doing your own tunning

 

[Sy Guy 0024]

Re: 415, 420, 422 camshaft advice

i have 422 and love it.. bigger lsa usually better..

Mind if I ask what basic combo you are running with the 422? How are it's street manners and bottom end? My motor will see mostly street action.

]Where are you getting your cam from? Lots of places have them in stock!!

I was looking at jegs and summit, both are showing a couple weeks lead time. Turbotime doesn't appear to be carrying the 415 any more. :dunno:

I'm kinda leaning towards the 415. I will likely hire out the initial tune but want to eventually get into code 59.

 

[sy445]

Re: 415, 420, 422 camshaft advice

I looked into these cams as well except the 420, that lsa is not good for a turbo app. The degrees of duration are all very similar and the lift is all the same. I have a custom cam which is two intake lobes(210 @.050) from the 415 cam. I cam doctored the cam at work and with 1.6 roller rockers (which slightly increases duration as well as lift) the duration was 212/212 and my lift is around .540 w/ 114lsa . As you can see in my sig I just refer to it as a 415 cam. From what I read my truck seems to make the same power as most other trucks w my similar combo with a 415 & 422 cam

 

[TYHOGG]

Re: 415, 420, 422 camshaft advice

The part the got me on the 412 and 415 is that more of the power in is in the lower rpm's. If you are using a 3k stall or higher you are not using half the cams power range. I went with the 422 cause its supposed to pull to 5500rpm.

 

[dgoodhue]

Re: 415, 420, 422 camshaft advice

The part the got me on the 412 and 415 is that more of the power in is in the lower rpm's. If you are using a 3k stall or higher you are not using half the cams power range. I went with the 422 cause its supposed to pull to 5500rpm.

The RPM range list for the Comp Cams will be pushed into higher RPM range because of the forced induction.

 

[Quickstop [UK]]

Re: 415, 420, 422 camshaft advice

I was looking at jegs and summit, both are showing a couple weeks lead time. Turbotime doesn't appear to be carrying the 415 any more. :dunno:

Post an ad in the "Parts Wanted" section.

I have seen a few people selling cams recently - E RUE often has Christmas garage sales.

Good luck! Seems 415 is just perfect :tup:

 

[TYHOGG]

Re: 415, 420, 422 camshaft advice

The RPM range list for the Comp Cams will be pushed into higher RPM range because of the forced induction.

True, I just noticed a huge difference in the top end when i went from 412 to a 422.

 

[Sy Guy 0024]

Re: 415, 420, 422 camshaft advice

Post an ad in the "Parts Wanted" section.

I have seen a few people selling cams recently - E RUE often has Christmas garage sales.

Good luck! Seems 415 is just perfect :tup:

Yeah, I had an ad for a few weeks but no one would get back with me after they offered up a cam for sale. Figure I'll just buy one new.

True, I just noticed a huge difference in the top end when i went from 412 to a 422.

I put a 412 in my syclone when I built it about 4 years ago, kinda wish I would've gone bigger now.

Thanks for all the input. I'm going to order this weekend so I can finish up the build. :rock:

 

[James Thomas]

Re: 415, 420, 422 camshaft advice

Any one have any thoughts on these spec's?


Adv. Duration In. 275 Ex. 281
Dur @ .050 In. 224 Ex. 230
Lift w/ 1.5 R's .502 .510
Lift w/ 1.6 R's .536 .544
LSA 114.0 deg.

Thoughts ..... opinions?

________
James

 

[E-Rue]

Re: 415, 420, 422 camshaft advice

we stopped selling the 412,415,and 422 because we have better cams that are designed specifically for these trucks. we only use custom grinds now, but i have several different options that will operate in the RPM range you are used to seeing with the off the shelf NA grinds.

e

 

[Sy Guy 0024]

Re: 415, 420, 422 camshaft advice

Are they similar to the one Tooky got? With around .530" lift? I've got to stick to around .500 lift since I have 1.6 rockers for clearance reasons.

 

[TYHOGG]

Re: 415, 420, 422 camshaft advice

Is this cam being used on vortecs or stock heads?

 

[nallj92]

Re: 415, 420, 422 camshaft advice

Mind if I ask what basic combo you are running with the 422? How are it's street manners and bottom end? My motor will see mostly street action.



I was looking at jegs and summit, both are showing a couple weeks lead time. Turbotime doesn't appear to be carrying the 415 any more. :dunno:

I'm kinda leaning towards the 415. I will likely hire out the initial tune but want to eventually get into code 59.

i have a 2 bolt stock rod, 9.5-1 forged with 422 and 1.6 full rollers, vortecs with mild porting, 50lbers and code 59 with methonal, pte63 turbo, 3100ish stall,
i think its smooth running and it hazes tires with the higher compression, i have a sound clip of it idling, sounds pretty mean...ill see if i can post it up somewhere
http://youtube.com/watch?v=UxbD3IP1hPU

 

[Sy Guy 0024]

Re: 415, 420, 422 camshaft advice

Is this cam being used on vortecs or stock heads?

Brand new set of Vortecs. Why?

i have a 2 bolt stock rod, 9.5-1 forged with 422 and 1.6 full rollers, vortecs with mild porting, 50lbers and code 59 with methonal, pte63 turbo, 3100ish stall,
i think its smooth running and it hazes tires with the higher compression, i have a sound clip of it idling, sounds pretty mean...ill see if i can post it up somewhere

Thanks for the info, I have the same 50s, vortecs, 1.6rrs...hmmm. Did you do the code 59 tuning yourself? Sound clip would be neato if you get the chance