just asking a bit of feed back from ppl who have simply fitted these cams to a 6G74, with minor mods, like air-intake, exhaust, that sorta stuff..

what sorta difference's or gains can be expected

my specific car is a Series I KJ verada..

i've done a quick serach and only found dreamers and i think you will find type of answers.. after somone thats actually done it.. and i know that with more supporting mods it will be much more worth while.. like higher CR pistons, port work etc etc..

cheers

I have them in my Car, KJ Series 1 Xi also.

Only problem is I fitted them the day after getting the car so I cant really give you a before/after comparison.

But I would still say that my old KE was quicker than my KJ, with the same mods (Headers, Exhaust, Cat, K&N Panel, Fuel Rail Kit etc. I pulled them off the KE and installed on the KJ, then sold the KE).

just asking a bit of feed back from ppl who have simply fitted these cams to a 6G74, with minor mods, like air-intake, exhaust, that sorta stuff..

what sorta difference's or gains can be expected

my specific car is a Series I KJ verada..

i've done a quick serach and only found dreamers and i think you will find type of answers.. after somone thats actually done it.. and i know that with more supporting mods it will be much more worth while.. like higher CR pistons, port work etc etc..

cheers

If you were going to the trouble of doing supporting mods, then I would stay well away from Ralliart cams, simply because they are very similar to stock.

However, if you arnt doing supporting mods (and I know you say your not), then the two best options will be Ralliart cams, or RPW stage 1 cams (or the same grind done elsewhere).

Stage 1 cams will be better, however, they are more expensive. The choice is up to you. Car should perform much the same on either cam, ie, stock, or very close to it

Recently I replaced the 3ltr V6 in the wife TE Altera with a 3.5ltr with Ralliart cams in it. As you can imagine the difference is huge, I got the Ralliart cams because they were cheap, about 1/3 the price of stage one cams from RPW. The Ralliart cams only have 10% more lift and duration so the stock ecu can cope with it no probs. Her car also has a K&N pannel filter and an exhaust, no extractors, and above 3500rpm you can feel the difference, and overtaking on the highway is much better. My mechanic has a TJ 3.5ltr auto and when we fitted the engine we had to have a run to compair the two, at first it was dead even, then I started to pull away in first, second gear by 100kms I had a half a car length on him, before the engine was fitted it was the exact opposite! Whilst the car is not as quick as my Ralliart, it is quicker than next doors auto VR SS Common*****!!!

thats kind waht i was expecting.. nothing amazing.. but just a little better

did the fuel economy suffer at all??

Fuel economy actually improved, but we went from a 3ltr to a 3.5ltr with cams. I cannot explain why, but it gets better economy, not a huge amount, but it is better. :nuts: I think the 3ltr diff gearing is shorter than the 3.5, maybe that is why??

everything that i have ever read has told me that the 3.5 stock, gets better economy than the 3..

so i'm not suprised

(i've only owned 2 3.5's to have nothing to compare myself)

Apart from a small increase in power in the midrange and top-end, you'll find ralliart cams will extend your usable power band by a few hundred rpm. E.g instead of the power dropping very noticeably at 5500rpm, it'll feel comfortable revving to say 6,000rpm without feeling strangled.

As already said, if you aren't going to do headwork and up CR, the ralliart cams or RPW "stage1" or similar a nice relatively cheap little upgrade. Will feel a bit stronger from the midrange, and feel more "revvable".

Would it make a good mod for a 3 litre engine or wont they fit

As i may do this if they fit

Would it make a good mod for a 3 litre engine or wont they fit

As i may do this if they fit

Both 3L and 3.5L motors used the same head, so they'll fit.

but would it be a worth while mod

but would it be a worth while mod

It depends on a few things really. There are estimates of a gain of about 3kW, for the cams only. If you had an aftermarket ECU that was tuned to take advantage of these cams, you'd see a fairly signifigant increase in power. Remember that the Ralliart made 17kW over a Sports or VR-X with only an ECU, slightly upgraded exhaust and these cams.

There's also the cost in installing them - 2 new headgaskets, 16 new head bolts, and the labour cost if you have someone install them for you.

Combined with EZ-Boy's inlet plenum, I'd wager that there'd be a decent increase in power, as both of these are geared towards mid and top end.

It depends on a few things really. There are estimates of a gain of about 3kW, for the cams only. If you had an aftermarket ECU that was tuned to take advantage of these cams, you'd see a fairly signifigant increase in power. Remember that the Ralliart made 17kW over a Sports or VR-X with only an ECU, slightly upgraded exhaust and these cams.

There's also the cost in installing them - 2 new headgaskets, 16 new head bolts, and the labour cost if you have someone install them for you.

Combined with EZ-Boy's inlet plenum, I'd wager that there'd be a decent increase in power, as both of these are geared towards mid and top end.

remember though the ralliarts had 9.4 compression, and flowed heads ontop of the cams and exhaust.

There's also the cost in installing them - 2 new headgaskets, 16 new head bolts, and the labour cost if you have someone install them for you.



If you are just putting in some cams without any other internal changes, the heads don't need to come off, making it a relatively cheap mod.

cool sounds like it might be a goer since i do have an EZ manifold aswell.

Cheers for the info guys

You dont need gasket or head bolts, its just a cam swap. The cams are $256ea from Mitsu. Id say for a $500 mod its worth it, considering you get about the same gain as a $1000 unichip!

You dont need gasket or head bolts, its just a cam swap. The cams are $256ea from Mitsu. Id say for a $500 mod its worth it, considering you get about the same gain as a $1000 unichip!

cost you about the same to fit i would think. Definitley make tha car more driveable but being an approx. .5 stage cam not huge differance. I have stage ones and it gained me around 9h.patw and another 12hpatw with emanage and tune