We seem to be getting more guys requesting pistons for N/A Motors. I want to gauge interest.

4G94

Forged pistons
10:1 compression ratio

Anyone seriously interested?
Should we get these made?

ROAD/RACE

 

How about some stroker kits? This is something I would be seriously interested in.

 

I would be interested, but I will be going boost soon. btw, I am the guy thats been emailing you (wgoolsby@ius.edu) talking about turbo kits..

 

High Compression pistons for NA guys means about 20whp gain, and u'll be hitting higher rpms so much faster

 

Are there any downsides to this, like requiring higher octane, more engine strain, new rods, that sorta thing?

 

I would be interested, but it will be another year before I would order. Thats about the time I will see my car again. My interest would also be gauged off the price. I would be buying the rods and pistons. Might as well change them both while I am in there!

 

well, the price we are hoping to keep as low as possible for you NA guys, and for the octane, i wouldn't know, u'ld have to talk to Rock about that

btw this would be a cheap alternative to going turbo, however, you wouldn't see the 80+whp gain tho

 

This would be the best thing for those staying NA...

Bumping up to 10:1 would keep the reliability of the motor 100% intact. The stock ecu will compensate for the higher ratio in closed loop(driveability) and open loop(mashing on it) with the ease of just raising your fuel pressure a couple psi.

Add the rpw cams to this, port/polished head, Ported intake manifold, TB, CAI, Header, High flow cat, and catback you should easily see 160-170whp/wtq levels in the 5speed. With a tuned piggyback probably more.

For some people this would also mean keeping the car 100% legal for SMOG/State restrictions.

 

You probably would need higher octane fuel though to run this safely (I'm guessing 91 would be the minimum)/

Stroker kits seem highly unlikely to me given the design of the 4g94.

ROb, Boe, Gabe I'm sure you can correct me if I'm wrong on either of those points.

 

In that case hell yeah I'd be interested. I won't be able to get them for sometime, with university and initial mods taking up most of my money but if you made em, I'm sure I'd eventually get em, just like the rest of the stuff you make.

 

A stroker kit was mentioned but that is more than likely not going to happen. There is a lot involved in setting that up. Also you'll have to rebalance the motor to ensure longevity. Also stroker setups have a tendancy to die early, 50-60k usually, due to the amount of stroke/force being exerted on the bearings/crank/pistons/rods.

For longevity/durability sake bumping up the compression is the only way to go. Decking that head down could net you another .1-.2 points as well.

Keep up the good work RRM as i know this would be another great part to add to your linup for sure.

 

higher octane is a must... 91 or better! With a piggy you could tune it for 87 but then you'd probably lose 10-15hp depending on your other mods.

 

boe, since you added the rpw cam into that list, how are you going to control timing since the rrm piggyback only controls fuel?

 

With these pistons i can finally see the NA lancer getting into the high 14's. No joke... we've already seen guys getting them down into the 15's. These higher comp pistons would give you great torque and hp increases across the entire band. Get that lightened flywheel and Stage 2 clutch in there and you'd be zooming.

Hell i'm thinking of getting these now! Rob count me in for a set. Time to become the fastest NA lancer!!

 

Timing shouldn't be an issue. Remember we've boosted the lancer to 9psi without changing the timing of the car. This setup will not affect the timing. The cam from RPW, stage 1, uses the stock cam gear, stock vlvs, and stock springs. Thus it should be fine... if it does come close(vlv clearance wise) you can get their adjustable cam gear and retard/advance it as needed. I don't see this being an issue though.

Also i'm sure there will be vlv reliefs in the piston as most high comp pistons have them to allow for bigger lifting cams.