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Thread: xT Series Engine Variants

  1. #1
    Lick my hairy Backyard Mechanic Turdinator's Avatar
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    Default xT Series Engine Variants



    Engine model and generation: 3/2TG Hybrid

    Top End Modifications: Cams are 284 duration .433" lift in a 88262 non hemi head

    Bottom end modifications: 13T bottom end with flycut and reduced dome pistons to suit head

    Forced induction: N/A

    Management: Weber DCOE40 With 36mm chokes

    Fuel used: Shell optimax (unpopular i know but i've never had a problem)

    Intake: Weber DCOE40 on an early 2TG manifold

    Exhaust: Pacemaker 4-2-1 extractors with 2-1/4 exhaust, hotdog resonator and straight through rear muffler

    Driveline: Unknown clutch, T50 and welded T series diff
    Last edited by Turdinator; 27-07-2007 at 05:27 PM.

  2. #2
    Purple is the new black! Automotive Encyclopaedia sillycar chick's Avatar
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    Default Re: xT Series Engine Variants



    Engine model and generation:
    2TG/3T Hybrid
    3TC bottom end used
    2TG 88261 head used

    Top End Modifications:
    Stock standard 88261 head and cams
    Head setup on engine to run approx. 10.2:1 compression ratio

    Bottom end modifications:
    Stock standard internals
    Flycut pistons

    Forced induction:
    NA engine

    Management:
    N/A

    Fuel used
    98 octane only

    Intake:
    40PHH Solex Carbs (Twin side draught)

    Exhaust:
    Genie Extractors, 2-1/4" exhaust

    Driveline:
    3T flywheel (approx weight 12kgs - to be confirmed)
    Standard TA22 diff
    T50 gearbox

    Comments:
    Dyno graph produced when engine was poorly tuned, with stretched timing chains, worn timing guides and a leaking upper timing chain tensioner.

    Mods since this graph:
    3.9 T series diff centre

    Upcoming mods over the next few months include:
    TODA racing flywheel at approx 3.5kg with Xtreme Heavy Duty Clutch
    Ported 88220 head with cams of unknown specs
    Ram tubes and socks

    Will post new dyno graph for comparision after these mods
    Last edited by sillycar chick; 04-06-2007 at 02:29 PM.
    51LII - 1972 TA22 Celica | Morpheous Metallic | 4AGE 20v Silvertop | Razorback ECU | W58
    Toyota Car Club (Qld)

    Quote Originally Posted by TheToyman75 View Post
    There is not much hotter than a Freshly painted Celica, Unless its the reflection of a freshly painted Celica on a freshly painted Celica

  3. #3
    Junior Member Too Much Toyota YLD-16L's Avatar
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    Default Re: xT Series Engine Variants



    Engine model and generation:
    2TG.

    Top End Modifications:
    Stock.

    Bottom end modifications:
    Stock. Block had 40thou overbore when I rebuilt it.

    Induction:
    Twin 40mm Dellorto Carburettors.

    Management:
    N/A

    Fuel used:
    Regular pump fuel 95 octane

    Exhaust:
    Extractors, 2 inch press bent system.

    Driveline:
    T50 gearbox, stock KE38 corolla diff.

    Comments:
    This engine was rebuilt with all new bearings, pistons, rings, gaskets, valve stem seals etc etc. The head was reconditioned at the time also in 1998.

    The dyno run was carried out about 800km after the rebuild.
    My KE25 thread
    WSID - [email protected] || Wakefield Park - 1:11.4 || SDMA Hillclimb - 49.1

  4. #4
    Junior Member Grease Monkey Hulk's Avatar
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    Default Re: xT Series Engine Variants


    From previous owner - Cheers Jake!

    Engine model and generation:
    3TGTEU Gen2 (watercooled turbo) from TA63 Carina

    Top End Modifications:
    Stock top end

    Bottom end modifications:
    Stock bottom end

    Forced induction:
    Factory CT20 Turbo

    Management:
    Factory ECU + Knock Sensor

    Fuel used


    Intake:
    1GGTEU Front Mounted Intercooler

    Exhaust:
    2.5" Mandrel Bent Exhaust From Turbo Back

    Driveline:
    W55 + Stock TA22 Diff

  5. #5
    I even do the dishes as Domestic Engineer Rodger's Avatar
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    Default Re: xT Series Engine Variants



    Engine model and generation:
    2T

    Top End Modifications:
    Std sized valves
    Mild porting
    Shaved to give 10.5:1 compression ratio.
    Double valve springs (unknown inners, OEM outers)

    Bottom end modifications:
    1mm O/S Toyota 9.8 pistons
    Stock rods
    Stock crank
    Ligtened OEM flywheel 6.6Kg
    Stock clutch
    All balanced
    Mild cam, used to be called a 3/4 race cam back in the eighties (30/70 but cannot recall exact)
    Standard points but recuved distributor with vacuum advance removed.

    Induction:
    Mikuni/TRD sidedraught manifold
    Dual PHH44 Mikuni
    Main Air jet #160
    Main jet #145
    Pilot jet #60
    Outer Venturi #34

    Fuel used:
    Std ULP

    Exhaust:
    4 into 1 extractors 2.25 inch exhaust

    Driveline:
    stock T50 and T rear end

    Regards

    Rodger

  6. #6
    I even do the dishes as Domestic Engineer Rodger's Avatar
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    Default Re: xT Series Engine Variants



    Engine model and generation:
    2T

    Top End Modifications:
    TRD O/S valves, seats and spring retainers
    Good porting
    Shaved 1mm, with pistons gives 11:1
    Double valve springs (TRD inners, OEM outers)

    Bottom end modifications:
    4mm O/S TRD/Weisco (1740cc)
    Stock rods
    Stock crank
    Ligtened OEM flywheel 6.6Kg
    H/D Exedy
    All balanced
    Mild cam, used to be called a 3/4 race cam back in the eighties, 9.5mm lift (30/70 but cannot recall exact, out of the engine above)
    Standard points but recuved distributor with vacuum advance removed.

    Induction:
    Mikuni/TRD sidedraught manifold
    Dual PHH44 Mikuni
    Main Air jet #200
    Main jet #140
    Pilot jet #60
    Outer Venturi #34

    Fuel used:
    Std ULP

    Exhaust:
    4 into 1 extractors 2.25 inch exhaust

    Driveline:
    stock T50 and T rear end

    Comments:
    Not ideally set up yet. I need to refine tuning but this combination is still extreamly drivable. This is the first time this motor has been on a dyno in its life.
    This was my competition engine originally built in the Mid/late eighties with little freshening up to now be in my Green TA-22, replacing the 74.5rwkW engine above.

    Regards

    Rodger

  7. #7
    I even do the dishes as Domestic Engineer Rodger's Avatar
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    Default Re: xT Series Engine Variants

    This run was done first on the CCG Dyno Day 6 and is being used by me to test a jetting set up with S5 Solexes. A pig to drive.

    [IMG][/IMG]

    Comments:
    Shows a huge hole in the performance. This is due to a way lean mixture and is caused by a huge lack of air speed. Not being fast enough through the outer venturis (chokes) to draw enough fuel from the main system.

    Shows it being compensated for by the Pilot system and starts to pick up again at the top end where air speed comes up. The Main could go to #150 and Air to #180 and would help compensate. #32 Venturies would be better. Looks like it has good potential for low down torque, with a lazy 79rwkW at 130kmph in 4th gear.


    Engine model and generation:
    As for previous post of mine

    Induction:
    This time around:
    Mikuni/TRD sidedraught manifold
    Dual S5 Solex
    A typical 2T-G jetting of:
    Main Air jet #150
    Main jet #140
    Pilot jet #65 with drilled to #100 Pilot air. Except these to make it just driveable.
    Outer Venturi #34 (normally #30 or #32)

    Fuel used:
    Std ULP


    Regards

    Rodger

  8. #8
    Junior Member 1st year Apprentice quikestsilva's Avatar
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    Default Re: xT Series Engine Variants

    Car - 1981 T18

    Engine - 2TG, head overhual, shaved head, new rings, bearings, timing chains, extractors, hot cams (unsure of the specs), abit bigger then standard jets (unsure of the specs either)

    Link below for pic of dyno reading

  9. #9
    Less cheese than a Grease Monkey andurils_sheath's Avatar
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    Default Re: xT Series Engine Variants




    Engine model and generation:
    2T-GEU 262 Head

    Top End Modifications:
    Race Port and manifold match ported and head freshen up

    Bottom end modifications:
    None

    Induction:
    Dual PHH40 Mikuni
    Main Air Jet #240
    Main Jet $150
    Pilot jet #55
    Outer Venturi #34

    Fuel used:
    BP Ultimate 98RON

    Exhaust:
    4 into 1 extractors 2 inch exhaust

    Driveline:
    stock T50 and locked T rear end

    Comments:
    This is far from its potential but a good starting point. The jets are way too large, I think around 200s would be better, the AFRs sometimes getting as rich as 10:1. The dyno doesnt show the low rpm section where the car has a huge flatspot. The afrs are up around 16 or higher. I think bigger pilots should solve this. Will get another dyno after the mods i have planned are completed as a comparison.

    EDIT: Changed to a 65 pilot that i had sitting around. Now its much nicer down low. No more flat spot. I still need to sort out the top end. With a smaller main air.

    Cheers
    Last edited by andurils_sheath; 13-11-2007 at 02:00 PM. Reason: Confirming jets
    Quote Originally Posted by Zapp Brannigan
    In the game of chess, you can never let your opponent see your pieces.

  10. #10
    Forum Member 1st year Apprentice
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    Default Re: xT Series Engine Variants



    Engine model and generation:
    2T

    Top End Modifications:
    Rebuilt and ported by Motor Improvements
    Polished rocker arms

    Bottom end modifications:
    H beam connecting rods. Most likely Fraser Engineering rods from Adelaide.
    Heat treated and stress relieved crank shaft.
    Steel main caps
    Unknown pistons, probably Specialised Piston Services of Melbourne or perhaps flycut Wiseco.
    Cam is either Speco Thomas 2T865 (312 degrees duration) or 2T935 (336 degrees duration). Motor Improvements is a Speco Thomas company
    Compression around 13.5:1
    Motor Improvemnts dry sump.

    Induction:
    Twin 48 DCOE
    Mains 165

    Management:
    Points
    Modified full mechanical advanve, 33 degrees total timing

    Fuel used
    Avgas

    Intake:
    Motor Improvements independent runner

    Exhaust:
    Motor Improvements

    Driveline:
    Steel Flywheel
    Tilton Clutch
    Holinger 5 speed transaxle

    Comments:
    Dyno sheet for a previous motor in my car, when the car had a different owner. Car is an Australian Formula Two. Race weight is 510kg.

  11. #11
    nuts Grease Monkey
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    Default Re: xT Series Engine Variants



    done in 4th gear. probably could be better if running leaner than 10:1 dip in power we think due to weak valve springs.

    Car: ke70 SR Coupe

    Engine model and generation: 3T-GTEU

    Top End Modifications: stock

    Bottom end modifications: stock

    Forced induction: ct20 with bleed hole + extra spring on wastegate 10.6psi. no intercooler

    Management: stock tt142 3tgte efi

    Fuel used: 95 or 98octane pump gas (cant remember)

    Intake: pod filter

    Exhaust: 1.3/4" te71 exhaust

    Driveline: w55, 3.9 ratio diff
    -Mark
    E2 + E7 fan
    '71 KE26 5k, '75 KE25 SR 4agte, '78 KP60 bug 4k-u, '83 KE70 SR Coupe 3tgte, '84 KE74, '84 YN57, '84 AE85.6, '86 AE82 FXGT 20v, '91 ST185, '92 SW20

  12. #12
    Yeah that's right, i'm a Grease Monkey texasflysuperstar's Avatar
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    Default Re: xT Series Engine Variants

    double post
    Last edited by texasflysuperstar; 17-07-2008 at 10:09 PM.
    TA 22 - Top Coupe and Best Bodywork
    1994 Fours and Rotary Nationals
    Built by Alex Sumner

  13. #13
    Yeah that's right, i'm a Grease Monkey texasflysuperstar's Avatar
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    Default Re: xT Series Engine Variants



    Engine model and generation: 2TG/13T Hybrid

    Top End Modifications: Major head work, Thomas Cams (spec's unknown)

    Bottom end modifications: Stock 13T with Hi Energy Sump

    Forced induction: N/A

    Management: Ignition Developments Electronic Ignition

    Fuel used: 91 RON Unleaded (Caltex)

    Intake: 45 DCOE Weber x 2

    Exhaust: Genie 4 into 1 Extractors, 2 1/2 Inch S/S System with S/S Super Turbo Resonator and Muffler.

    Drive line: Standard 5 Speed with 4 Puck Brass Button Clutch and RA40 GT diff with 4.11:1 gears
    Last edited by texasflysuperstar; 17-07-2008 at 10:16 PM.
    TA 22 - Top Coupe and Best Bodywork
    1994 Fours and Rotary Nationals
    Built by Alex Sumner

  14. #14
    Canberra Celica Group 1st year Apprentice Akaoni (Casey)'s Avatar
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    Default Re: xT Series Engine Variants



    Engine model and generation:
    3TG Hybrid

    Top end modifications:
    2TG 222 head
    Big standard valves
    Double valve springs
    286 duration .414" lift cams
    Mild porting

    Bottom end modifications:
    2TG 262 block
    2.0 litre stroke (78mm 3T crank) and bore (89mm)
    10.5:1 WISECO forged pistons
    Pistons and driveline balanced

    Forced induction:
    None

    Management:
    Electronic ignition
    Carbies baby!!!

    Fuel used:
    Caltex Votex 98

    Intake:
    Twin side-draft Webers DCOE40
    34mm chokes
    Electric fuel pump

    Exhaust:
    Extractors
    2-1/4 system

    Driveline:
    Standard clutch
    T50 gearbox
    Standard diff

    Comments:
    Big thanks to Jason Fulton, the Canberra Celica Group and Phillip Head Services.

    Pretty happy with it!!!
    Casey
    Akaoni - My Red TA22 - BEAMS Blacktop (On the Backburner)
    Slick - Wife's Blue RA28 - BEAMS Blacktop (In Progress)
    Betty - White Hilux Daily - Stock Awesomeness
    Dot - Black Kluger Kiddy Wagon - Stock and Soccer-Mum-tastic
    Canberra Celica Group - http://canberracelica.org/

  15. #15
    1941cc 2T-G Domestic Engineer w810sc's Avatar
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    Default Re: xT Series Engine Variants



    Stage 1
    Engine model

    2T-G

    Top End Modifications:
    88260 head
    Shaved head
    RR4 Double valve springs (Forum sponsor)
    235* at 0.050 inlet cam (0.013 valve lash)
    248* at 0.050 exhaust cam (0.013 valve lash)
    110* LSA
    match ported head in/ex
    ported Redline manifold
    Kameari adjustable cam sprockets in/ex
    Kameari idle sprocket.
    Kameari 0.8mm metal headgasket

    Bottom end modifications:
    Decked Block 2T 8101751
    Taiyo 88.5mm 1750cc pistons with 28cc dome
    3T-GTE con rods
    BRD High volume oil pump

    Type of induction:
    Normally Aspirated

    Management:
    Weber DCOE45 (jetted for street) with aftermarket ram tubes
    32mm venturies
    50F9 Idle Jets
    180 Air correction
    F9 Emulsion Tubes
    135 Main Jets
    50 Pump Jets

    Fuel used:
    98ron BP

    Exhaust:
    4-1 headers (short) heat wrapped
    2.5 inch press bent with resonator
    straight through muffler

    Driveline:
    Agawa Engineering 4.2kg racing flywheel
    stock clutch
    stock T50 (thanks Eddi)
    stock T series diff

    Stage 2
    34mm chokes
    MSD 6AL-2 + Blaster SS coil (due to missfire at 6krpm+ with old igniter)
    4 puck clutch disc + custom pressure plate
    4-2-1 exhaust headers
    other set of cams.
    Last edited by w810sc; 19-10-2008 at 06:21 PM. Reason: fixed up mistakes
    deepdishfactory
    2T-G - Half the valves but twice the fun.

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