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Scion tC 1G Drivetrain & Power Engine and transmission discussions...

2AZ-FE = forged connecting rods stock???

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Old 06-09-2005 | 04:00 PM
  #21  
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The stage 1 head package sells for $550 dollars with a $700 dollar core charge. If you want to keep your stock head, and have us send you one that has been ported/polished/flow tested your looking at $1250 bucks. If you dont want to keep your stock head, we refund the $700 dollar core charge when we recieve your stock head in the mail.

Charles
Old 06-09-2005 | 04:11 PM
  #22  
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so for those who dont understand about this stuff...what does this mean? From the responses it sounds like a good thing? anyone care to digest the material and explain it to me like a 10 year old
Old 06-09-2005 | 06:40 PM
  #23  
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two questions:

1)will you get boost cams?

2) will stage II be stainless or nikasil on the exhsust valve and the cost and when can I have it? I would be looking to do the head BEFORE I would upgrade my turbo setup ZPI to stage 1. I would also like the vendor to price an install kit: gaskets and bolts so I know I ain't going down to the dealer ever few hours for an unexpected part.
Old 06-10-2005 | 02:25 AM
  #24  
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So this means my baby will be grounded for at least 2 weeks.... I gotta work to get the dinero for all the parts I need to start collecting honda emblems >)

It does sound good though. Is there any type of garuntee or warrenty? Have you fully tested your kit under high boost lvls?
Old 06-10-2005 | 05:01 AM
  #25  
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Joe this is IMO, as I ran many 2.2 Dodgeengines, d engines the VTEC B, I would start with a alpawerks turbo cast iron manifold. Custom turbo sounds good and all but is it really needed? this is a large engine and makes a whole lot of torque stock. What you did not say is at 6 PSI or so the D engine was only at 160WHP and even less torque. Here turbo size, spool rate et all gets into play. But the tC makes 163 ft-lbs on a near flat torque curve, torque NA = flow so you get lots more "play" with the tC, which is going to make WAY more HP per boost level and have it much flatter... I'd spend most of the extra money on the bling.

I went with ZPI as I like the smaller turbo, it will spool fast and I'm safe at 6.5 PSI and I'm going to a SNOW meth / water inection (double safe). I'm too lazy now days to build it all from scratch as I've worked on every new car I 've had for 30 years, now I don't want to work on my new car I'm um OLD.
Old 06-10-2005 | 05:23 AM
  #26  
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SMOKES!!! FORGED internals?? Perhaps TOYOTA has PURPOSELY FORGED the internals.....to prepare for boosting the tC engine with the TRD supercharger!!! How else would TOYOTA even consider warranteeing the engine even with the TRD supercharger!!!!

....if this is true, I'm SMILIN' about my turbo order now!
Old 06-10-2005 | 05:47 AM
  #27  
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Originally Posted by oldman
Joe this is IMO, as I ran many 2.2 Dodgeengines, d engines the VTEC B, I would start with a alpawerks turbo cast iron manifold. Custom turbo sounds good and all but is it really needed? this is a large engine and makes a whole lot of torque stock. What you did not say is at 6 PSI or so the D engine was only at 160WHP and even less torque. Here turbo size, spool rate et all gets into play. But the tC makes 163 ft-lbs on a near flat torque curve, torque NA = flow so you get lots more "play" with the tC, which is going to make WAY more HP per boost level and have it much flatter... I'd spend most of the extra money on the bling.

I went with ZPI as I like the smaller turbo, it will spool fast and I'm safe at 6.5 PSI and I'm going to a SNOW meth / water inection (double safe). I'm too lazy now days to build it all from scratch as I've worked on every new car I 've had for 30 years, now I don't want to work on my new car I'm um OLD.
Once again I agree and see what you mean by that. I have the bling I need. Did the 18s, full kit and wing, custom trunk, strobes, etc... But why not back it all up?

Civic owners pressed for more boost and were all excited when someone passed 200whp with a turbo setup. All cars that made more than 200whp was using methanol, alchol, water, isopropyl (sp) as a secondary fuel source. The tC engine can DESTROY those numbers at 5psi of boost day in and day out.

But why stop there? Yes we will be faster the the new civics with turbo, but I had one of those already. I previously owned an Evo before my Scion and want that slam in the seat feel I got. To do that, yes I need perfect traction, but top end power is nice too. I'll be sizing my turbo accordingly to perform the way it shoud.

I did make some calls today and I should know by next week what I can do about the turbo kits. Expect some incredible packages being made. And I'll have pics, links to other forums bragging about our service and parts, videos, sheets, the works...

All in time, and until we get results, build quality and price we're looking for, it's all rumor for now. I'll certainly update everyone.
Old 06-10-2005 | 06:25 AM
  #28  
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I ment bling on the turbo kit, like all polished pipe etc. The engine flow enough not to really need the latest and greatest BB super turbo, that what I ment when I said there is a lot of leeway on a 2.4 with turbo vs a 1.7 VTEC with turbo. In this case ScionSpeed's demo really looks good on bling, one look at the really huge turbo intake pipe shows that this is quailty work.

I know the Civic D are so WOW at 200 WHP.. hehe. I do like the idea of a nice turbo Civic HX for my MPG car, but went with a Jetta TDI that I built to 183 WHP and 360 ft-lbs of spank down....

I'm sure there will be tC with big numbers, I'm just happy to beat 95% of the guys that I get down and dirty with and 240 WHP will do it, after that it gets crazy and expensive and in reality unless I'm trolling with drag radials I ain't hooking it anyway. Very few FWD can break into the 12's on plain street tires and a street suspension system. VERY few, like I bet less the 2 in Austin in any one day. What the chance of getting into a street fight with one of them? Now I used to troll with a LS1 Camaro and drag radials and that is deep into the 12s / high 11s pure street with A/C bling and road race suspension, even then I can't beat everyone... really my LS1 buds don't have too much trouble with Evo / STI or any street driven FWD....
Old 06-10-2005 | 06:54 AM
  #29  
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I want to do what Searl Tate did with the sr20det 200sx se-r with the tC. 12.3 1/4 on a totally street legal and air conditioned sleeper.
Old 06-10-2005 | 07:11 AM
  #30  
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If the tC can do what my cousin and I do with his 2001 Corvette Z06 at the Texas Motorplex with all stock motor and street tires 12.4sec 1/4mile, then I'll be happy...

Perhaps I might be able to keep up with him on a rolling start with a turbo tC on high boost. Bringing to tC to near level of the Z06 is thrilling
Old 06-10-2005 | 07:27 AM
  #31  
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the SS stage 2 should give a Z06 some trouble from a roll....
Old 06-10-2005 | 07:50 AM
  #32  
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Originally Posted by oldman
the SS stage 2 should give a Z06 some trouble from a roll....
yeah, except for once it passes 120mph, game over for the tC due to speed cut and gearing
Old 06-10-2005 | 12:49 PM
  #33  
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all true, do I miss my Camaro..

I've said it before, when it comes to street tires, pump gas and a good overall suspension (not just 1/4 mile) you gotta start saying hmmm I should have got a RWD IS300 with turbo kit, or BMW M3, or LS1 Camaro.. etc. I'm not the biggest fan of 4WD as I've seen $$$$$ into them only to hit the dreaded trans blowup every 6 months and still not perform to mild build LS1 Camaro with DR numbers.

I'm OK with 240 WHP then look at LSD, clutch, flywheel, Rear Sway Bar, I already have rims, tires, sounds, eye candy.
Old 06-10-2005 | 01:20 PM
  #34  
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All a very interesting read guys, keep up the info please!
Old 06-10-2005 | 01:30 PM
  #35  
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One thing that IS missing from the engine is piston oil cooling jets. These really help cool the piston down on sustained boost...
Old 06-10-2005 | 01:44 PM
  #36  
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Originally Posted by TurboCustomz
This sounds cut and paste...^^^^
The point in discussion here is "CONNECTING RODS", Do you understand that?

I see you are trying to disqualify my comment saying that it is cut and paste. Probably the wording is a little complicated to you, but I made myself sure to explain the "Shot Peening" with the correct technical terms.

As an information to you, I hold a degree in Mechanical Engineering to back my comments. Would you tell us what kind of educational background is backing your comments.

If the fact that forged connecting rods and the crank comes to you as a surprise, it tells me that you have never been in a metallurgy class. Therefore YOU ARE NOT A MECHANICAL ENGINEER.

Next time try to keep your comments centered on the discussed point. When you criticize somebody for using the correct technical names it not only makes look silly, it deviates the attention of the discussion and wastes everybody's time
Old 06-10-2005 | 01:54 PM
  #37  
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I should note that there are many cast crank engines like the LS1, LS2 that can last a long long long time at big HP levels. There are also cast rods that were / are light and strong and as far as I know (not everything) the titanium rod is "cast" and the powder metal rod is "forged" but not in the sense of getting crushed after being cast, they are "forged" as part of the process to heat and form them so they don't have a higher density external skin structure as you would expect from a "forged" rod. Yeah class, I don't know about you but I was trying to hookup and in class I was making plans for my next engine build. Like you really learn anything in class.
Mechart also made a line of cast light weight rods made out of high tensile steel.

Also as far as I know many OEM turo engines have Mahl pistons and as far as I know most of these are um CAST!

Cast / forged um not as important as piston oil cooler jets... trust me.
Old 06-10-2005 | 03:10 PM
  #38  
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For the comment about the Lexus IS... The founder for Dezod.com bought the IS300 and we've already started the tubo and custom work on that, including Supra rods and pistons.
Old 06-10-2005 | 03:29 PM
  #39  
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When we were deciding on how far to push these engines, we actually did the research and found some interesting things.

The rods are forged, but they are really skinny. The pistons are cast but they do have a decent ring land size and they come with a ceramic top coating so they can handle some heat. We concluded that 400hp was managable for this engine. We have pushed this engine further but are not sure how much further it can go. I recommend 350hp at the most for a long lasting reliable engine.

We do alot of r&d and have alot of information concerning these engines, but are hesitant to release anything, due to the fact that other people has taken it and used it for there own gain and not given us credit!

Not to mention the fact that half of the people on this forum bash us on our turbo kits, when they don't know what it takes to mass produce a turbo kit, that LASTS!

so we tend to keep most of our information private, Sorry.
Old 06-10-2005 | 05:15 PM
  #40  
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JMS, Yeah....you already gave free important info to everybody who wants to build a turbo....on regards to the maximum WHP that the tC can withstand...... That is a valuable fact...... Now, any shop can feel safe to build a custom turbo for a customer without worrying to much about blowing up the engine, or connecting rods.

Just look at Jotech....their engine guard gets their tC to around 533whp+ but look how much it cost them.....probably $20,000+ worth of parts, install, and R&D, according to them.

So, I'll give you the credit for giving valuable info. Gives me the piece of mind that the tC can handle 350WHP without blowing it up.. and I don't have to spend wild like Jotech has to their car to get fun power.


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