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Nik_Lee
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Re: ECU decissions 2014/04/17 07:18:41 (permalink)
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Dylmrt,
my goal atm is to get as much performance from the current engine as I can safely and the ultimate goal is to buy a second engine to build up and swap in that can support somewhere around 300rwkw safely. So any supporting mods I do now I want to be doing keeping in mind what I will be looking for later down the track.
 
MR2QIK,
I called in to Hi Tech Mufflers on Monday and spoke to them about getting a nice full exhaust made up with dump pipe so that will probably be first thing on the list. As far as a a ebc goes how safe is it to adjust the boost without being able to remap the fuel? And with the IC I was thinking of looking into getting a Frozen Boost 'type 5' A2W intercooler something like Robk has on his.
 
Gatesy,
I had a bit of a look at Geforce performance site and they look like they like to deal with a lot of V8's. It would be nice to have a good tuner local but I am also now thinking I really do want to go to someone who has plenty of experience with the 3SGTE for that added security I guess.

Current ride, 2010 TT RS
Previous ride, 1994 JDM MR2 Turbo hardtop
http://www.mr2australia.c..r2play/tm.aspx?m=105959
 
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track_mr2
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Re: ECU decissions 2014/04/17 09:26:53 (permalink)
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If it was me personally, I wouldn't bother changing dump pipes yet, I would just do a CAT back exhaust, as because your aiming for 300kw's at a later stage you will probably end up changing turbo's and very likely need a new dump pipe created for it all to meet up properly anyway.
#17
MR2QIK
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Re: ECU decissions 2014/04/17 09:41:06 (permalink)
+1 (1)
I can't comment on GeForce as I haven't seen/driven their work personally. If you're planning a more hardcore engine, I'd save the entire ecu exercise for then (saves retuning costs). No need for a spare motor, just buy the internal hardware beforehand. The majority of my car's downtime was due to awaiting the arrival of parts.
 
As far as exhaust goes, I'd just grab a nice Jap exhaust (Phoenix Power etc) from Dylan. Would be cheaper than HiTech & "jdm sexy yo". As for the dump pipe, there's actually a significant improvement by changing it, so I'd still do that & sell it down the track if need be. Just make sure you brace any aftermarket downpipe as even the best have a tendancy to crack.
 
No complaints re the intercooler choice either. W2A is the way to go, no sacrifices & I've been running a W2A for years now without any negative side effects. Mine's never heatsoaked.
 
You can comfortably run about 16psi with the stock ecu/ct20b. Can probably go to 18 as long as it's not a hot day, but I'd want to put on a seat of headphones to verify it's not detonating. The issue at that boost with the stock ecu isn't really fuel related, it's ignition timing which gets aggressive from memory. The CT20B turns more into a hairdryer at close to 20psi & beyond. I used to  & preset 16 & 18psi on my ebc when I ran the stock ecu & Blitz K1. Crazy ba$tards like Tristan in WA have run a GT30 @ 20psi on the stock ecu......hahaha Good old days.
 
Those mods are already enough to crack into the 12's from personal experience. Not too shabby.

MR2QIK - "The Little Car That Could"



320rwkw @ 19psi (pump fuel, no giggle gas)
11.96 @ 116mph (with 228rwkw)
#18

Nik_Lee
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Re: ECU decissions 2014/04/17 10:07:59 (permalink)
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One reason I was thinking about getting a second engine to build was I had been reading the 98+ blocks had an update for improved strength over the 94 blocks? so I was thinking it may have been added insurance to have built up a stronger block but ether way I would probably look at having the block sleeved with darton sleeves.
 
As far as the exhaust goes the other exhaust I liked the look and sound of was the Berk exhaust but I would still need to do something about a high flow Cat for the dump.
 
Which W2A intercooler system are you running on yours?
 
How does the stock ct20b cope with increased boost as I think I read that the JDM models had a ceramic exhaust wheel which don't like too much boost?
 
everything you have mentioned so far would keep me entertained for a while until I was ready to do a full engine build.

Current ride, 2010 TT RS
Previous ride, 1994 JDM MR2 Turbo hardtop
http://www.mr2australia.c..r2play/tm.aspx?m=105959
 
#19
MR2QIK
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Re: ECU decissions 2014/04/17 11:55:39 (permalink)
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Don't believe Darton make 3S sleeves. If they do, good stuff. Darton revolutionised the Honda scene with those sleeves & crate blocks. The 98 block you're referring to, would probably be a gen4 GTE block. Maybe hard to find a bare short block as most of those motors are probably still purring along. A bit involved in using that Gen4 head & for the price, I'd say it's not necessary/valuable unless you can get it cheap.
 
As for the cat, I'd relocate it to the mid pipe instead. I run a "test pipe" & can easily bolt up the cat if need be.
 
My W2A cooler is custom fabricated. PWR heatexchanger & a converted PWR/FullRace top/side mount core which was extended/sealed for W2A duties. Bosch marine grade water pump, no reservoir. Aircon has been retained & is fully functional.
 
CT20B's were all ceramic. They won't enjoy over 18psi.

MR2QIK - "The Little Car That Could"



320rwkw @ 19psi (pump fuel, no giggle gas)
11.96 @ 116mph (with 228rwkw)
#20
Deco
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Re: ECU decissions 2014/04/17 12:22:58 (permalink)
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From memory I believe the CT20B's offered on the ST205 WRC had steel wheels and any rebuilt one will have it also. So it would be safe to push 18 psi on those without hurting it. As mentioned I wouldnt suggest doing so on one that has a ceramic wheel. The turbo that came with my half cut showed evidence that the ceramic wheel was being pushed passed its limit and it was not pretty to say the least. 

1994 GT with 96 3SGTE (217rwkw)


#21

dasic1
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Re: ECU decissions 2014/04/17 13:11:52 (permalink)
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If you want a stronger block just use the 5S one. 
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MR2QIK
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Re: ECU decissions 2014/04/17 13:27:52 (permalink)
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Deco
 
From memory I believe the CT20B's offered on the ST205 WRC had steel wheels and any rebuilt one will have it also. So it would be safe to push 18 psi on those without hurting it. As mentioned I wouldnt suggest doing so on one that has a ceramic wheel. The turbo that came with my half cut showed evidence that the ceramic wheel was being pushed passed its limit and it was not pretty to say the least. 



Actually you're correct. Steel wheels were used but since the ceramic can take upto 18psi without too many complaints & the turbo isn't efficient past that, I see limited advantage to running an ST205 turbo.
 
As Dasic said, 5S block will is proven to get the job done. I haven't even heard of a single 5SGTE cracking so far & the Americans have been pushing serious numbers.

MR2QIK - "The Little Car That Could"



320rwkw @ 19psi (pump fuel, no giggle gas)
11.96 @ 116mph (with 228rwkw)
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track_mr2
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Re: ECU decissions 2014/04/17 13:32:35 (permalink)
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MR2QIK
Don't believe Darton make 3S sleeves. If they do, good stuff. Darton revolutionised the Honda scene with those sleeves & crate blocks.



Yeah Darton do sleeves for the 3S, they are quiet expensive though, around 1k a set plus you have all the install costs ontop of that. There are other sleeves you can get but the only one I've had race engine shops recommend have been Darton. Other brands of sleeves are much, much cheaper however but it would be a gamble to see if they are up to the task.
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MR2QIK
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Re: ECU decissions 2014/04/17 13:35:32 (permalink)
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^Ouch.....In that case, better off with a mildly bored 3S or a 5S block considering that price. My "cheaper" sleeves cracked.

MR2QIK - "The Little Car That Could"



320rwkw @ 19psi (pump fuel, no giggle gas)
11.96 @ 116mph (with 228rwkw)
#25
Nik_Lee
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Re: ECU decissions 2014/04/17 13:38:56 (permalink)
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I have seen a few sites in the US and UK advertising Darton dry sleeves for the 3S block so I hope that I will be able to get some when the time comes. With running a 5S block how much work is involved in fitting the piston cooler jets and preparing the block?
 
I don't think I would want to try pushing the CT20B past 18psi anyway as any increases I do on the stock engine I would like to remain within safe limits for the health of the engine until such time as I am ready to do a full build.
 
Any recommendations on good electronic boost controllers?

Current ride, 2010 TT RS
Previous ride, 1994 JDM MR2 Turbo hardtop
http://www.mr2australia.c..r2play/tm.aspx?m=105959
 
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track_mr2
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Re: ECU decissions 2014/04/17 13:40:23 (permalink)
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Here is a good ebay ad/article on Darton Sleeves. They give them some pretty big endorsements especially coming from a engine builder.
 
http://www.ebay.co.uk/itm...-sleeved-/251354538781
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MR2QIK
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Re: ECU decissions 2014/04/17 14:39:16 (permalink)
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With the 5S block, I didn't bother with oil squirters. 3S squirters don't fit & you'd have to retrofit another type, which leaves room for error. It'd take a serious application for me to have bothered with oil squirters (like an endurance car). As far as block preparation, you need to drill/elongate the coolant passages to marry up with head (for 3rd Gen head), and you'd also need to drill to fit the axle carrier. Oil cooler is also a consideration, but personally I eliminated the factory oil cooler & run my aftermarket oil cooler & filter relocation kit. You can read a more detailed account on my build thread.
 
As for the EBC, I still use my trusted HKS EVC IV which I purchased new over a decade ago  Does the job perfectly. Most of current range of EBC's (Jap or local) do the job IMO. Find a bargain & run with that. Blitz SBC comes to mind as good value.
 
You just reminded me (totally forgot), I'm pretty sure I bought a spare EBC when I was in Japan (was a bargain & Option1)......lol

MR2QIK - "The Little Car That Could"



320rwkw @ 19psi (pump fuel, no giggle gas)
11.96 @ 116mph (with 228rwkw)
#28
Nik_Lee
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Re: ECU decissions 2014/04/17 17:28:12 (permalink)
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I have been having a read through your build thread and getting lots of good ideas
 
It does sound as though there is a bit of work in getting the 5S set up for this aplication and in some ways I am liking the idea of sticking with my gen 3 and going for the darton sleeves they may be pricy but possibly the cost of installing sleeves in the gen 3 block may be comparative to setting up a 5s anyway.
 
I shall have a look into the blitz and see what good value EBC's are around. Thanks
 
So even though your running a haltech your still running a EBC? I thought the haltech would have been capable of boost control on its own?

Current ride, 2010 TT RS
Previous ride, 1994 JDM MR2 Turbo hardtop
http://www.mr2australia.c..r2play/tm.aspx?m=105959
 
#29
5SGTE
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Re: ECU decissions 2014/04/17 19:36:57 (permalink)
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Don't forget to plug the oil feed for the balance shafts on the 5s block unless you get a celica one.
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