Let's talk internals...
 

There are a lot of threads in this forum about intakes, exhausts, etc...

Doesn't anyone out there have an awesome all-motor Mazda, with forged internals, a ported and polished head, lighter pistons, hot cams, etc etc etc?

There must be some cars out there with very serious engine mods. I want to hear about them. You can only go so far with bolt on performance...

very true.

Internals refer to crank,rods and pistons. From the factory the 1.8 and 2.0L blocks have a forged crankshaft. Rods and Pistons are different story, I think they are made from glass. There is a guy on another forum who claims to have a built motor costing over $6K. Since wagner sells a built shortblock for $2100 and Paeco full head service with custom cams is only $2500 I don't know where he spent the rest of his money. Also he won't produce any time slips because he says its made for driving not racing or something along those lines.

I personally was going to go NA with my car but I got a little deep into the supercharger project and it's too late for me to turn back now.

You should contact Sunbelt Performance in Georgia or Tripoint Engineering. They build the Protege Race cars you see on Speedvision and they make pretty decent power. Also, sunbelt does extrude hone porting and polishing so that might be something to have done if you're going to have any engine work done.

yeah look at the other forums, there's an NA tech section with some pretty seriuos buildups going on...

Cast rods and pistons perhaps? Are the J-spec parts forged?

Roddimus the moddimus, does the 1.8/2.0L head flow decently, or can it be made to?

BTW, do you know of anybody with adjustable cam sprockets that has fooled around with the valve timing on our cars?

love the name!

J-spec parts are non-forged to my knowledge...just upped compression on the pistons.

I hear the head flows pretty well and will NOT respond to gutting it. I personally am going to use Extrude Hone polishing as it's arguably the best form of porting and polishing since it so closely replicates air's actual travel paths.

I don't know of any cam gears. I think SRmotorsports has a set for like $400. They have to be custom made since our exhaust cam gear has 3 magnetic pickups for the cam sensor.

i'm to the point where i should put-up or shut-up. the only mods i have left are all those you listed...and don't forget a good engine-management system...i don't think the stock p5 ecu would go well with higher compression. if it were only a little cheaper!

Well, for all those looking to stay NA then a supercharger will only improve what you decide to do (other than raising compression).

Also, I'm going to see what I think about these haltech and I may look into becoming a distributor.

I beleive the Tri-Point motors were the most NA power out of an FS motor....like 250whp or something, but the reliability was something else...they went through motors like crazy

one race per motor and 3 races per tranny, i believe

damn thats rediculous
as I said, over on the other forum there a FEW peeps doing some serious na work, namely "InstallShield" has been doing a full custom internals motor and has made some SERIOUS power out of it...

last I saw he only had like 140whp.....

seriously... :laugh2:

i think he's around 180-200whp now...but he keeps having small problems

140whp is 10 more then we make at the crank...am I wrong?

I HIGHLY doubt he's anywhere near 180whp unless he's running 11.1:1 CR and complete stand-alone EMS on 100octane or better. Last I talked to him his "performance cams" lost him power and he gained it back by gutting his intake.....I'm sure he's a great guy and all but without dyno's I'm going to have to search for my "bs flag" :bs:

you are correct.

I've seen stock p5/es/lx's put down between 98-105whp....STOCK. I find it difficult to believe he got 80whp from CR increase and some porting.

It's not easy to make huge power like he is claiming. Dyno sheets are a must for anyone making a claim like that...
"In God we trust... everyone else bring data".

so, is there anything in the works to mass produce some sort of forged kit for cheaper? or is there just not enough market for it? personally i know a SHITLOAD of probe and mx6 guys that would LOVE to have forged internals for the fs, i'm suprised there really isn't much going into this, maybe contact the few companys that have looked into this further and see if they would be interested in making just a kit, as opposed to doing all the work in house like they are now?

i dunno, but when i modify a car i like to do it as a whole, and i have to agree with juddz that bolt ons will only get you so far.... the next step for my PGT if i didn't have a change of heart was going to be a complete engine rebuild, with all forged internals, but i'd rather NOT drop a shitload of money into it, and get an msp :p...

I had a 22% loss at the wheels...stock. I'm guessing I'm somewhere between 155-160hp now at the crank which is still not up to par with some of those new 3s :mad:

he also lightened the rotating assembly which reduces parasitic drag losses, free hp much like a set of lighter pulleys...plus cams, and a stand alone....

yeah. Most of the guys who go NA are doing the j-spec change over like intake manifold cams and highcompression pistons just hoping to get near the j-spec horse power of these 2.0's, but for some reason no one ever gets near it for some reason. My friend John was telling me I could get 180whp out of that too. I did more research and soon learned of gullible position. I was new to Proteges and I believed him, it sounded good though. Maybe with all that 180hp at the crank. But not WHP.

That helps too. LiGHTENING THE ROTATING ASSEMBLY i MEAN.

Pauter makes rods and I believe JE or Wiseco make custom pistons for a reasonable price, in multiple compression ratios. Hell, they might even have them in stock.

Thats about right. I talked to a tech from Tripoint when I was at Mosport a few weeks ago. He said they last about five hours. Thats practice, qualifying, and a race.

cool, thanks for the info midnightblue, i'll be sure to look up on that once i get internet back at my apt :)...

how did you figure you had 22% drivetrain loss?? dyno'd and assumed the 130bhp figure mazda quoted?? I dunno if I'd ever trust mazdfas power claims.....