CT9 vs TD12 vs TD04 - Pros & Cons
- Thread starter Texx
- Start date
Rob fulham4eva
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too be honest i wish i would of gone straight to a td04 kit instead of the tongs hybrid CT9, but i do love the fast spool up of the hybrid im thinking of going td04 soon but i have heard they are bit laggy? love the hybrid ive got on the V at the min so im in 2 minds of weather to go td04 or not? some help would be good as i would like to know bit more how they are from day to day and which is the best set up? the only reason i went for the hybrid is that i wanted a quick repsonsive car which i am stil happy with i must say but i do feel like i could do with just that bit moree power! car made 196 hp at flywheel, 171 at wheels
ramses974
Member +
What do you turbo gurus think about this on a stock 5E-FHE?
I am going to be using this TD04HL-13T from a 2000 Volvo V70XC
since my CT9 needs oil seals and it was so much easier to have adapter plates made.
Installed..........:rockon:
in my experience, HL means slower than L about spooling ...the best compromise is to still with 'L' on td04.the t04 l13 from subaru will spool better on this engine...Myself have a td04l19 +exernal wastegate with a blitz sbcid ,this spools quicker with my 5efHe ( yes i still on high compression)
will update soon on how this runs ........... i am not a racer looking for crazy power, the 5E is bolted to a 4EFTE auto-box.....just looking for a little bit more than what the CT9 could give.
Do you think the stock 295cc injectors could handle this set-up with high compression and stock boost but from the TD04?....also got some 460cc RX7 injectors I could use.
Do you think the stock 295cc injectors could handle this set-up with high compression and stock boost but from the TD04?....also got some 460cc RX7 injectors I could use.
ramses974
Member +
the most important is to know your boost target..at 1 bar you can go to stock injector but you have to use them to the maximum dutycycle near 100%
Starletto_Joz
Member +
Its certainly be best to upgrade the injectors as once fine tuning for more performance there is a good chance of them maxing out. I run just over 1bar on stock 4EFTE engine with TD04L on 370cc injectors and they are running 85% duty cycle.
Joz
Joz
sx_turbo
Lifer
stock injectors are 330cc when the fuel pressure is upped to 3bar (3 bar is what injectors are tested at) so fitting 370cc injectors imo is pointless,
sx_turbo
Lifer
also to add, i personally prefered the spool of the ct9 hybrid, i made good power back then with it, about 220bhp i believe and 220lb/ft,
the td04 i found took ages to spool in comparison and the power gain at 1.2 bar wasnt worth the the later spool.
on the plus side of the td04 @0.7bar it makes the same power and tad more torque a little later on the stock ecu as the ct9 @ 1bar
the td04 i found took ages to spool in comparison and the power gain at 1.2 bar wasnt worth the the later spool.
on the plus side of the td04 @0.7bar it makes the same power and tad more torque a little later on the stock ecu as the ct9 @ 1bar
You raise a few issues -
1 The 4efte auto box from what i've read is was maxed out at 210 ftlb due to slip that results in excessive temperature that can fry the box.
2 The gear ratios are a little longer on auto this means you want positive boost around 2000 rpm or better with lots of timing on a 4efte probably a little later is ok on a 5e.
3 The spray pattern on pressurised stock injectors is going to be much better than RX7's have heard stocks can go to 250 hp so either way stocks increased pressure or 370's at stock pressure seems like your safest target unforged is 230 bhp with 200ft lb torque. For base pressure comparison -
Williams site says 370 at 2.55bar .7ms give 360 cc and stock at 3.05 bar .91ms give 320cc , so management may be an issue here.
4 Ive read higher compression will better suit less fuel if you are in a cold climate.
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pilgrim_fgau
Member +
Thats quite interesting... I didnt know that at all. Why do so many people use 330cc injectors then?
sx_turbo
Lifer
there flowing at 330cc, this is assuming the injectors are indeed tested @2.5bar fuel pressure originally, which is what the stock regulator is.
the reason for people using 330cc is because they get bamboozled by people, there is lots of duff info on the internet, and a lot of it is by traders pretending to be specialists and shifting units,
another example of this is porting and polishing cylinder heads, infact polishing is bad, but everybody assumes it is good because there is a lot of traders out there who do it to make it "look" good, all the top company's in the business will tell you that only porting is required and polishing is a waste of time and time consuming.
back on topic, for hooning round streets its gotta be ct9 all day long, there is a vid on youtube of a starlet with ct9 hybrid racing up the touge and it is perfectly balanced for such an occasion, td04 and above should be for track work
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ramses974
Member +
you are right , porting is the best option
ramses974
Member +
just to add : ( i have a Zisco td04 manifold ; due to this fact , i always use td subaru turbo)
-i am with high compression forged 5E,td04 seems to be quicker for me due to the high compression, menawhile the td04-11 as had better response than my td04 L19 turbo
-personnaly the most responsive turbo is the tf035 like someone said ... i will test it soon meanwhile i will loose power . i prefer response instead of power ...
-i am with high compression forged 5E,td04 seems to be quicker for me due to the high compression, menawhile the td04-11 as had better response than my td04 L19 turbo
-personnaly the most responsive turbo is the tf035 like someone said ... i will test it soon meanwhile i will loose power . i prefer response instead of power ...
gorganl2000
Lifer
http://www.austarletclub.com/forums/index.php?showtopic=15618&hl=
i dont think the tf035 is a good idea on the 5e
stick to the td04L...its the smallest i would go on a 5e...its super responsive as it is
ramses974
Member +
perhaps, but i find the td04 L19 less responsive than a td04L13...did you notice this ?