Winter FI/Engine projects?

[BlkZoomZoom]

Winter projects?

Just curious how many winter projects people have going. I tore the MSP down again today, gonna be porting out the exhaust manifold, s-pipe area. Also making the stock muffler flow with 3" inlet and pvc "muffler". I will be adding a cut out straight off of the s-pipe.

Also porting and flowing the head. May back cut the valves if my friend/engine builder things it will be benifical. Just making general overall improvements, not looking to make a race motor out of it. Porting another intake manifold to match up with the head.

I will be building another short-block. Using more than likely cp pistons and oliver rods. I am going with 8.5:1 comp. and a longer rod set-up. I plan on playing a couple of tricks on the tops of the pistons ( have seen a couple of people perform this and had amazing results((almost 30whp)). Cleaning up the bottom end and oil holes to help oil control and drain back. The new bottom end assy. will be balanced.

I still haven't decided on the turbo. I may stick with the stock one for now. I will be putting a secondary fuel rail in before the throttlebody as soon as I figure out where to mount it so it can't be seen.

I am making my own intercooler that will be used for track use. I also may make hardpipes that I can put the stock ones over.

The goal- 12.5-7's on stock tires and street set-up. Low 12's with slicks and more boost.

 

[daedalus]

i think everyone pretty much knows about mine... I try to brag about it every chance i get

and just what tricks are you talking about with the pistons?

 

[TurfBurn]

Mine of course too... Yeah I"m curious on the piston tricks, but too late for me since mine will be here on Monday.

 

[BlkZoomZoom]

It's actually something done after you get them.

 

[TurfBurn]

I'm assuming but curious if you are messing with the quench area and the dish shape to achieve greater mixing and thus the more horsepower? That's about the best I can think of as far as what you may be up to.

Later!

Steve

 

[TurfBurn]

It's actually something done after you get them.

Interesting... is it actually a physical/machinging type thing or one of the coatings?

 

[BlkZoomZoom]

You basically got it right on the first one. If you think of the piston top as the floor of the combustion chamber it all makes more sense. The same rules apply as a porting of the cylinder head and changing of shape of the quench area of the cylinder head.

 

[joka1]

nobody really know this yrs for me so i will explain quick...... 2 new audiobahn subs (since i lit one kicker l7 on fire and blew the second on to shreds) the elimation series (think that is right) any way in a full fiberglass trunk inclosure with another 900.1 phoenix gold amp (if i can find one) all glassed in .... next 2 more racing seats in the back, harness bar with 2 7 in screens for the rear . nx bottle as the center consol for the rears running a ntercooler setup and fuel cooler plus some for the engine, full fiberglass center consol from the dash all the way back and blended into the trunk plus install my 13 in lcd for the trunk lid plus 7.2 in sunvisors (already reapulstered to match).... then paint and install my dg front lip and mint blue side skirts... c/f grill, c/f engine cover and a new rear lip.... plus fix the little things that are messed up since it is a daily driver) and dress up the engine more ....(blue ground wire kit, turbo heat shield and repaint turbo pipes) newly designed grafix for a new yr (not yet designed yet) new display for shows, new turbo manifold, c/f spoiler , black tails plus some more but you get the point, all abt show this yr......... next winter is custom widebody kit.....
oops forgot new block,forged pistons 8.5 comp,rods... lsd,clutch,flywheel and axle are for this winter also...... all starts next weekend.......
rob

 

[BlkZoomZoom]

the piston on the left made 28 more hp. Anybody wanna guess why?

 

[RyanJayG]

it appears to be totally smoothed.... no sharp edges equate to less chances of hot spots.... 28hp from increased timing?

 

[TurfBurn]

Sort of looks like it has been swirl polished or roughed slightly... get you more turbulence during compression, gets you a better mix burns better/cleaner and with less hot spots... but I think Ryan also noted a good point too!

 

[BlkZoomZoom]

28hp from more efficent burn. No increase of anything. Exact same parameters between runs except the pistons.

 

[TurfBurn]

I'm hoping to be one of the more ragged edge tuned cars for timing... the beauty of JandS protection

 

[TurfBurn]

28hp from more efficent burn. No increase of anything. Exact same parameters between runs except the pistons.

Nice!

I may just have to have my machinist clean up the edges and do soemthing similar to the piston itself! Very cool info.

 

[RyanJayG]

yeah, my other guess is roughing to create quicker, more turbulent flow. but that other piston doesn't exactly look hyper polished.... hmmm

 

[BlkZoomZoom]

blah. If you can't hear it, it ain't hurting anything. right? lol

 

[TurfBurn]

http://www.theoldone.com/articles/engine_tips/enginebuildingtippistons1.html

 

[tekkie]

what car was that 28hp diff from? just curious what percantage it is, I mean it if it took a car from 150 - 178 thats amazing but if its from 500 to 528 ... well s*** thats still pretty amazing lol

this looks like a pretty cheap mod

 

[TurfBurn]

blah. If you can't hear it, it ain't hurting anything. right? lol

LOL... with my exhaust that would definitely leave some room!

I'm actually going to be installing a couple of microphones on the motor itself... then I'll have headphone jacks in the car to listen to the motor itself. That way I can confirm via direct listening what the JandS indicates back to me. Igdrasil said it worked pretty well for him, so I'm curious to do it.

 

[tekkie]

guess that answers my question (chair)

http://www.theoldone.com/articles/engine_tips/enginebuildingtippistons1.html