mirage cam

LVLANCER · Jul 20, 2009, 02:44 AM

im kinda confused.. i was reading about the old discussions about the mirage cams.. some people said that it doesnt fit, some people said it would fit.. some said its a good mod for N/A setups and not good for turbo setups.. i have a stock 2001 mirage cam that im planning on installing, i just would like to know if i would benefit from this with my turbo setup..

thanks in advance!

senate6268 · Jul 20, 2009, 12:45 PM

Yes it will fit. As far as advantages, the Mirage cam has a slightly longer duration as shown here:
http://www.rpw.com.au/Products/Engin...pec4g93s16.htm

imalancerman · Jul 20, 2009, 12:58 PM

But it has less lift on the intake side than the stocker. I read a thread somewhere on here that said that the stock would be better for forced induction for that specific reason.

LVLANCER · Jul 21, 2009, 02:46 AM

Quote:

Originally Posted by imalancerman

But it has less lift on the intake side than the stocker. I read a thread somewhere on here that said that the stock would be better for forced induction for that specific reason.

i read something similar to it. do you guys know of anyone whos turbo'd and runs that cam?

LVLANCER · Jul 21, 2009, 02:47 AM

Quote:

Originally Posted by senate6268

Yes it will fit. As far as advantages, the Mirage cam has a slightly longer duration as shown here:
http://www.rpw.com.au/Products/Engin...pec4g93s16.htm

thanks for sharing the link. do you think the difference on the lift wouldnt be compensated by the longer duration?

imalancerman · Jul 21, 2009, 03:13 AM

Well it really wouldnt be that noticeable a gain from my understanding anyways. If you look at the stage one turbo cam on that rpw sheet, its actually quite aggressive compared to the mirage and the lancer camshafts. The only reason I got a mirage cam was because I needed a new head and just figured hey, why not get a mirage head? Worked out, paid 140 for the head. But I think its ridiculous to pay 100 bucks for a stage .5 camshaft if your just buying the camshaft and using it as an upgrade. Save up and get a real stage one or higher. As far as results in performance from the cam, I asked the question a while back and senate answered and said that no one has actually posted results from the camshaft but the proof is there that it is a more aggressive profile. Im paraphrasing of course.

Boostedlancer$ · Jul 21, 2009, 08:12 AM

I have a rrm stage 1 cam or 2 i cant remember now. but from what i have gathered from talking to rpw is that their cam is out of a mirage. they claim from rrm that you can run that cam n/a or turbo wee i would only run it on n/a not turbo. what it does is it actually confuses the wideband it sayd that you are running a good a/f ratio but really you arent. i have experienced this first hand. the car said that under boost i was running 10 to 11 a/f ration and than all of a sudden my number 4 piston burnt right up. so now i am waiting on a rpw race cam. so i would put alot of thought into what you want to acheive with a new cam if it is either n/a or turbo i wouldnt cheap out on this part. and i also wouldnt waste your time dealing with RRM i would highly recommend going with RPW they know their mitsubishis and what will properly work with what you are trying to acheive

senate6268 · Jul 21, 2009, 09:25 AM

Quote:

Originally Posted by imalancerman

But it has less lift on the intake side than the stocker. I read a thread somewhere on here that said that the stock would be better for forced induction for that specific reason.

That is true also. The slightly higher lift is better suited compared to a longer duration with the 4G94's longer stroke over the 4G93. In reality, swapping in a Mirage cam is really NOT a worthwhile mod to the 4G94 engine. The differences are minute.

OZ Rally · Jul 21, 2009, 11:13 AM

Quote:

Originally Posted by senate6268

That is true also. The slightly higher lift is better suited compared to a longer duration with the 4G94's longer stroke over the 4G93. In reality, swapping in a Mirage cam is really NOT a worthwhile mod to the 4G94 engine. The differences are minute.

That's exactly what I said in another thread. It's just a waist of money and time.

Green_Bandit · Jul 21, 2009, 03:00 PM

Good read. Glad I never went that route...

KillahB · Jul 21, 2009, 08:46 PM

I wouldn't exactly call it a waste of time. It's a 248 / 248 versus a 240 / 248. Because the Stage 1 is a 256 / 248, suggesting that this is a waste of time befuddles me. That's like saying dont get the Stage 1 since it's only 256 / 248, get a Stage 2. Or dont get an HKS 264 / 264, get the 272 / 272 setup.

For a mild NA setup, this is very decent. Especially for 60 - 70 bucks and not requiring upgrading the internals. Yes, a Stage 1 would be MORE ideal, but that's not to say an increase in the intake is a waste of time. Hell, I'm willing to bet you would see more gains from this, than a cold air intake which people spend 300 bucks for. Of course I am speaking for NA. Of course, opinions are like A-holes and until we get dyno proof, this is a moot argument.

As for being boosted, especially in a SOHC, you would want to have something with a bigger exhaust duration.

LVLANCER · Jul 22, 2009, 01:11 AM

thank you very much guys! i will get rid of my cam now and just save up for an RPW stage 1 cam!