thoughts for yaris parts

[turboyaris]

Hey guys... I'm bored at work, and I was just wondering if you guys had any ideas for parts that you would like designed or developed for the Yaris. I am currently working on an intake manifold and throttle body for my turbo setup. It should be completed with some results hopefully by the end of april. Once that is complete I will be tearing apart an extra engine that I am getting and most likely doing a full build. If you guys have any suggestions on parts you would like to see sooner rather then later, let me know. I will look into them. I would prefer to stick with performance parts, because I'd rather go fast then anything else. That isn't to say I wouldn't consider other parts. Just shout out any suggestions.

[ChinoCharles]

An aluminum under-panel for less than what JDM is costing at this point would be quite nice.

Other than that, I just think that the 1NZ head is screaming for some heavy-duty parts. I seriously doubt its ability to handle much of anything properly in the way of power, especially when you start to play with the timing and whatnot. I'd like to increase revs eventually, but I wouldn't even think about it until I looked at some head work.

What are you thinking Nick?

[turboyaris]

haha well like I said I will be tearing apart the entire engine and doing a complete build. I was definatly looking at valves and springs and retainers, all lighter and def. stiffer springs. I know Ferrea makes a lot of blanks for different valve applications Im sure they have something close. If not, I know they do custom valves, just not sure what that would run me. Heads are definately part of the program though. If there is enough interest, I will start there instead of the bottom end like I had planned. One thing is for sure though, I have seen the 1nzfe rods and they are paper thin, also too for turbo apps forged lower comp. pistons is def. on the list. I wouldn't worry about the engine, I have a problem starting a project and leaving parts stock haha call me crazy.
As far as your idea for an underpanel, I had already contemplated that after thinking about the issues with what I believe to be lift at high speeds, The front end tends to feel a little lose as you get up in mph, an underpanel would reduce turbulence underneath the car and actual increase front downforce. I can't imagine it would be too expensive to have someone fabricate that, I know a couple good sheet metal guys, I will see what they think.

[ChinoCharles]

See, you need low comp block internals while I'm more or less looking for just the opposite. I'd like to see someone up the compression and lower the displacement... F1 style. Smaller pistons, better materials, less rotational mass, higher revs, more usable power. Its all a pipe dream, but it sounds awfully nice. With a good tune, wow.

[uncleyaris]

I heard a rumor that somesone changed the tranny, any thoughts

[turboyaris]

thats a definate possibility for the tranny after completing my engine build i will be looking into that possibly a tc tranny with tc axles to save you from the 1100$ drvieshaft shop axles. and tc trannys have held easily in the 400 range.

[redglare45]

Hmm, that throttle body sounds interesting.

[turboyaris]

See, you need low comp block internals while I'm more or less looking for just the opposite. I'd like to see someone up the compression and lower the displacement... F1 style. Smaller pistons, better materials, less rotational mass, higher revs, more usable power. Its all a pipe dream, but it sounds awfully nice. With a good tune, wow.
well less reciprocating mass is definatly on my list, light rods can be changed over and f1 achieves the displacement by enlarging bore and lowering stroke making the whole assembly needed to spin less. I can look into higher compression pistons for you when I do mine. the problem with lighter materials is always a price game. I have an idea though that will allow me gobs of power in the usable range. Remember the other problem with high compression is a need to run higher octane fuels. Go to high with the compression and you will have to run race gas all the time. Easy ways for you to raise compression is to mill the heads down a little, a thin metal head gasket. Remember stock is 10.5:1 already 12:1 i believe is the limit for pump gases or at least safely.

[turboyaris]

only problem with that throttle body mod is that you can't really port out a plastic intake manifold. Thats why I am custom making an aluminum one.

[Black Yaris]

How about an easy motor swap?

[turboyaris]

How about an easy motor swap?
I would have to guess that if you were to do an engine swap your easiest bet would be a transverse mounted fwd engine I am not too familiar with the other toyota engines, but I do know that the 1.8 in the celica gts is mounted either way, I would look into that or the 2.4 in the tc, the tc engine is mounted with the exhaust in the front in a traditional manner. The engine bay is fairly large in our cars, the only thing you would have to consider since our hoods are so small, you might need to install the engine from underneath. Another major thing to consider is that our ecus are mounted inside the engine bay on the firewall, that being said there aren't a lot of places to run wires through the firewall therefore the ecu might have to stay in the engine bay. Of course if the exhaust is in the front like the tcs and traditional fwd cars, the back firewall would see significantly less heat then our cars where the exhaust is right there. Personally I like the 1.5, it seems to be very efficient as far as mpg and all, even under boost I still see good mpg. Plus the engine is very light itself. I have also been semi against engine swaps, just sacreligous if you ask me. Just my thoughts though.

[Doc Zaius]

I'm all for forged pistons and rods, with a bias towards lower compression for a possible FI future. But ya... like Charles said... less rotational mass... any way you can. :biggrin: (btw... looking forward to getting the NST crank pulley on in the next couple weeks, after I get the car dynoed stock).

[Black Yaris]

I doubt I will swap the engine, but I am sure I will dig in and do what I can to lighten, and stregthen what I can on the inside.... and from what Chino is finding out I am more and more convinced about staying away from Forced Induction.... I may put her on the bottle down the road with a lil shot just for fun

[joey1320]

I doubt I will swap the engine, but I am sure I will dig in and do what I can to lighten, and stregthen what I can on the inside.... and from what Chino is finding out I am more and more convinced about staying away from Forced Induction.... I may put her on the bottle down the road with a lil shot just for fun


why stay away from forced induction???

anyways for turboyaris an intake manifold will definitely help the flow since you can port it to whatever size you want, along with the throttle body.

after seeing the second edition of syphon mag i'm really interested in the rotrex supercharger. is a compact design which should be easy to mount and route the piping.

the one thing the aftermarket needs is a cheap way to modify/piggyback the ecu for tuning when needed. if you go all motor or forced inducted.

what kind of setup do you have in your turbo application?

[Black Yaris]

what kind of setup do you have in your turbo application?

Is this directed to me? Cause there is no turbo inside this lil blackbean

[joey1320]

Is this directed to me? Cause there is no turbo inside this lil blackbean

no the first question was for you, as to why you are going to stay away from forced induction?

the last one was for turboyaris to learn more about his setup.

[ChinoCharles]

turboyaris is running the ZPI kit. You can look at it on their website.

I am not convinced that either is better over the other quite yet. I need to see what this ITB setup makes on the dyno. I agree with turboyaris that engine swaps are sacrelige. Swap the engine and it isn't a Yaris anymore. Its a Yaris with a _______ engine. Doesn't mean they shouldn't be discussed, though. Why not? Anyway, we will see what the ITB setup does with that xA. Finished intake, exhaust, more pulleys, short shift kit, bushings, rims, tires... plenty to do this summer. :biggrin: When "tune" is on the coming soon list I'll be happy.

[turboyaris]

what kind of setup do you have in your turbo application?

emanage system... works well for me, was able to tune everything we needed to, and keeps stock functions, only downside is check engine light is always on

[cdydjded]

Carrillo & Crower have rods available, JE can make custom pistons & RE has pistons on the shelf. As for the valvetrain I am a Ferrea distributor & if Turboyaris could send me the valves, springs, retainers, locks, seals & spring locators I can have them make us what we need. The only drawback is a minimal of 50-100 sets would have to be made. I am also a JE distributor if someone needs some custom pistons made.

[turboyaris]

I was told both made rods for the generic 4cyl toyota engine. I was told it would work on the 1nzfe but I thought I read somewhere that they were discontinued. JE and wiseco both would make custom pistons, I will definately keep you in mind though as the build gets underway. and 50-100 sets or 50-100 items. Sets seems kinda high but I figured 50-100 items might have to be made which would be more like 4-8 sets.

[cdydjded]

I can get you Crower 1NZFE rods right now. There is no engine that can use generic rods. You cant use 3SGTE rods in a 4AG. Rods are made specifically per engine model.

[slothman86]

How about an easy motor swap?

How about a 20v 4age?

[turboyaris]

I can get you Crower 1NZFE rods right now. There is no engine that can use generic rods. You cant use 3SGTE rods in a 4AG. Rods are made specifically per engine model.
I know rods are different engine to engine. I misread their website when I was half asleep haha. Anyways what does a pair of the crower rods run?

[ChinoCharles]

Drumroll please...

[turboyaris]

what am i drumrolling for?

[ChinoCharles]

I'm drumrolling for the price on those rods.

[eTiMaGo]

arms getting sore yet??? been 10 hours since that post!

[ChinoCharles]

Just my left... for some reason my right never gets sore. Hmm.

[turboyaris]

i thought you didn't work on cars.... mine doesnt get sour because of turning so many wrenches.. i wonder what yours is from....hmmmmm

[eTiMaGo]

he's a guitarist... must be all that strumming.............

[turboyaris]

ah yes... and here my dirty mind thought he was strumming something else... its good to see the only website he visits is yarisworld, I have to admit... I got a little worried

[Doc Zaius]

How much for the rods?!! :biggrin:

*more drumrolling*

[turboyaris]

carillo's are 1400$ for a set, I have been calling a bunch of companies today looking for custom parts and costs, i havent been able to get through to crower. Looks like valvetrain will set us all back quite a bit.

[turboyaris]

the drumroll can finally end, I got a hold of Crower, They would be $747 dollars a set. If we can sell 10 sets, it would drop the price to $611 not bad for a set of custom rods. Im not sure why Carrillo are so expensive they would both be made of some type of steel, and before you ask titanium rods would be able $2400 a set. Material prices are astronomical these days. If there is any interest in engine parts please pm me guys, We can get discounts through pretty much every vendor for larger buys.

[Doc Zaius]

n00b question: are there any other alloys or options available for pistons/rods? Are the stock ones steel? Probably some of the reason we get such great milage is b/c they ARE so light (and wimpy!) Beefing them up would add mass to the rotating assembly.

[turboyaris]

not entirely sure on stock alloys, I know they are a cheap heavy steel usually. Our stock rods look like toothpicks and make me a little uneasy looking at them. Unfortuneatly since everywhere has to custom make these rods, they can't give me a guess on weight. Usually though aftermarket companies use 4340 or 2618 which is just a grade of metal. since we also wont be pushing 800 HP like some of their other customers demand, I would imagine they would keep in mind that weight would be a concern. I haven't found very many times when a stock rod was lighter then an aftermarket rod. If you really want a lot lighter then go with Ti but as you saw that costs way too much money. As far as pistons the biggest difference in aftermarket is forged instead of cast (stock) i may be wrong but the same applies for rods I believe. The same materials generally apply for pistons and as well they are usually lighter then stock. Forged is a better way to make stronger and lighter products instead of cast.

[cdydjded]

Sorry for the delay I had my price list @ home. Yes Crowers are $747. I can get the pistons for $499 & rings for $105.00. Titanium rods are a waste of $ @ the power levels we are going to acheive. Doc: all aftermarket forged pistons are made from aluminum, rod options are steel, aluminum & titanium. Steel rods are more than enough. Yes there will be additional mass with new rods & pistons. But the additional strength of them outweigh the added weight.

[ChinoCharles]

OK, so around $1250 for a build. Thanks for finding out guys.

[turboyaris]

chino don't forget bearings and machining costs, also too if you want to find a few more people interested like I said we can save a decent amount of money buying multiple sets.

[ChinoCharles]

I'm saying to get the bulk of the parts in your hands. Of course its never that easy. :wink:

[turboyaris]

first your talking about your right hand being stronger then your left, now your talking about bulk in your hand... this conversation is going sour real quick....

wiseco has piston sets for 540 with rings and everything. and if we get 2-3 sets sold JE said we would get a discount as well.

[ChinoCharles]

ROFL!

What kind of pistons? Low comp? :frown:

[turboyaris]

no JE said as long as they are sets for the same car then high compression and low compression are added as the same set. i.e. we are considered 2 sets.

[ChinoCharles]

So wait, JE sells the Wiseco pistons?

:iono:

[turboyaris]

no they are two different companies. Wiseco's are 540$ a set for either high compression or low compression, they also offer a discount when purchased in quantity.
JE's are about 500$ +105$ for the rings, They offer a decent discount after 3 sets are purchased. Either way whether you want high or low compression they are considered a set, and work towards the discount.

[ChinoCharles]

Which would you want?

[turboyaris]

Both are good, Wiseco's come skirt coated, I have Wisecos in my 700hp 300zx build so do several other people I know. I think we couldn't go wrong with either one. Just to throw another wrench in there Arias makes pistons for 600$ or $650 if you want their upgraded wrist pin, they say you need them if pushing 20+ psi. All of them say they should take about 4 weeks, and I believe most of them have info already on the pistons so I wouldn't have to do too much work.
Most companies ask you to fill out a brief paper on your build you can get an idea by clicking here and going to custom piston order form. Click here or DIE!!!! hahaha (http://www.jepistons.com/dept/order/)

[Doc Zaius]

Wow... good stuff... interesting information, guys! I've read in a couple places that the offset crank of the 1NZ-FE engine doesn't help the rods hold together all that well under boost. If they actually do look like toothpicks, I can understand why!!

Nice that it doesn't matter to JE if you're ordering high or low comp pistons when considering a group buy.

But ya... for me... this is all research at least for the next year, possibly 2... need time to acquire capital and warranties to wear off! :tongue: I'm very interested... just not right now!! :biggrin:

[ChinoCharles]

But ya... for me... this is all research at least for the next year, possibly 2... need time to acquire capital and warranties to wear off! :tongue: I'm very interested... just not right now!! :biggrin:

I think that sentiment echoes 99% of the 1% of owners that are actually interested in doing anything like this, so you're good.

[turboyaris]

warranties are overrated... if something breaks just fix it like I would... think about it 2 years from now your going to be like ehhh its just an old yaris....

[turboyaris]

I got all the parts for making the throttle body/ intake manifold. Hopefully I will get a chance to get to it this weekend. If I do I will be posting some pics. It won't be until the first week in may that I will be able to have it retuned and dynoed, but we will see. Anyone think of any other parts they want made? I am looking into the underpanels and will have a post on them soon. ANyone know of a price on them, so far I checked online and everywhere said ~$200.

[turboyaris]

hey guys wanna know what is messed up about our cars, the valves are tiny!!! haha so far Manley only makes blanks down to 5.5 mm so we would have to bore out the valve guide. A not difficult possibility. Ferrea has blanks to 4.97 however, they also cost twice as much as Manley components.

[Doc Zaius]

hey guys wanna know what is messed up about our cars, the valves are tiny!!! haha so far Manley only makes blanks down to 5.5 mm so we would have to bore out the valve guide. A not difficult possibility. Ferrea has blanks to 4.97 however, they also cost twice as much as Manley components.

Are you talking about intake and exhaust valves? I'm a total n00b when it comes to actual engine stuff. How big are ours? Would this be to replace the current ones for strengthening purposes?

[turboyaris]

its the diameter of the stem of the valve the long straight part, ours are around 4.8. The main reason to upgrade the valve is yes ability to withstand higher heat, more pressure (under boost), it also can lighten the valvetrain and that coupled with springs and all can allow for a higher redline. and yes both exhaust and intake valve stems are around the 4.8mm mark.

[turboyaris]

so i came up with another idea for a part i will soon begin to develop.... an electric water pump.... what do you guys think? how many of you guys would be interested? another cool mod i was considering just to give you guys some other modding ideas, is the auto radiator comes with a tranny cooler built in, you could modify this to hook up an engine oil cooler to it, which is a very helpful setup, in colder conditions it brings oil temps up quicker and in hotter conditions it would obviously keep oil temps down which in turn keeps the whole temp of the engine down as well. Not sure if the brackets would match up or not, not to familiar with the differences of the rad just knew the auto had the built in cooler, or so the factory service manual says.

[cali yaris]

Great read.... but I'd just like a nice polished aluminum battery box that fits perfectly?