Search found 2073 matches
- Tue Jan 26, 2021 10:51 am
- Forum: TECH: 4A-GE ENGINE
- Topic: OST-071: For an AE71 - Largeport for a liftback
- Replies: 2
- Views: 45
Re: OST-071: For an AE71 - Largeport for a liftback
So... the first order of business is to acquire a 4AGE - not so easy anymore, this one took about 2 months for my client to find. https://gallery.ostportworks.com/albums/userpics/10005/engine_arrives0.jpg It is an early 1989 (10/1988 built) 4AGE (vin number tag on engine traced using toyodiy) that w...
- Sun Jan 24, 2021 2:48 pm
- Forum: TECH: 4A-GE ENGINE
- Topic: OST-071: For an AE71 - Largeport for a liftback
- Replies: 2
- Views: 45
OST-071: For an AE71 - Largeport for a liftback
I was contacted during mid summer by this client. I had just begun OST-070, and he wanted OST-071 for his AE71. https://gallery.ostportworks.com/albums/userpics/10005/recipient_AE71.jpg As you can see, it currently has a clean 4AC engine in it...... https://gallery.ostportworks.com/albums/userpics/1...
- Thu Jan 21, 2021 4:31 pm
- Forum: TECH: 4A-GE ENGINE
- Topic: help a n00b build a 1.8L 4age?
- Replies: 24
- Views: 1814
Re: help a n00b build a 1.8L 4age?
Oldeskewltoy, Also, I tried plugging in your flow data and the results weren't that great. I'm not sure how this software calculates efficiency but basically the cfm data says these heads only flow 49% efficient, and I didn't even get 100hp on the "dyno". That didn't sound correct in my o...
- Fri Jan 15, 2021 9:15 pm
- Forum: TECH: 4A-GE ENGINE
- Topic: TRD Gasket, Stock 4age
- Replies: 3
- Views: 195
Re: TRD Gasket, Stock 4age
carina4age wrote:Yes, i will check top of the block. Do you know what is the correct tightening torque for that gasket? I have new Toyota OEM headbolts. Also, will the timing marks line up with thinner gasket?
Use pattern in FSM. TRD recommended 48ft/#s(650±20 kg・cm). I recommend doing it in 3 passes: 25, 36, 48
- Thu Jan 14, 2021 7:05 am
- Forum: TECH: 4A-GE ENGINE
- Topic: TRD Gasket, Stock 4age
- Replies: 3
- Views: 195
Re: TRD Gasket, Stock 4age
Hey, my 16v bigport blew headgasket few days ago and i want to swap it to .8mm trd head gasket to have little bit more power. My engine is completely stock but im going to get the head resurfaced. I just want to know is it possible to use that 0.8 trd gasket with stock engine? yes it is possible to...
- Tue Jan 05, 2021 11:50 am
- Forum: TECH: 4A-GE ENGINE
- Topic: OST-070: 7AGE for an N2 Levin
- Replies: 28
- Views: 3044
Re: OST-070: 7AGE for an N2 Levin
3 injectors?? ;) Did I miss something, or: 1) is that an aftermarket dipstick? 2) does that trigger wheel bolt onto a stock crank pulley? Those are the support pedestals, the injectors go between.... https://gallery.ostportworks.com/albums/userpics/10005/tecart_2panel.jpg That is a factory dipstick...
- Tue Jan 05, 2021 11:34 am
- Forum: TECH: 4A-GE ENGINE
- Topic: OST-069: Transformation
- Replies: 5
- Views: 652
Re: OST-069: Transformation
SO another Newbie question :angel: 36cc vs 37cc, is there a sweat spot on a 4age, or is this just to get the correct combustion ratio? What is the standard chamber volume, on a 16V Big port? We are fine tuning final compression ratio. In this case 36cc along with his piston choice, and gasket choic...
- Fri Jan 01, 2021 2:24 pm
- Forum: TECH: 4A-GE ENGINE
- Topic: OST-069: Transformation
- Replies: 5
- Views: 652
Re: OST-069: Transformation
So the head has come back from getting its valve job.... https://gallery.ostportworks.com/albums/userpics/10005/core_shift_correcting_and_valve_job_3_panel.jpg https://gallery.ostportworks.com/albums/userpics/10005/new_valve_job_and_ground_valves.jpg then the client asks me if it is too late to add ...
- Mon Dec 28, 2020 7:30 am
- Forum: TECH: 4A-GE ENGINE
- Topic: OST-070: 7AGE for an N2 Levin
- Replies: 28
- Views: 3044
Re: OST-070: 7AGE for an N2 Levin
Not sure exactly why but I just love your tarp background pictures. They look a big step up in quality - well done. The close up one of the cam wheels could be straight from a commercial. Maybe it's just the bokeh effect but whatever it is keep doing it :D :thumbs: I hope you dind't have to count a...
- Tue Dec 22, 2020 9:59 am
- Forum: TECH: 4A-GE ENGINE
- Topic: OST-070: 7AGE for an N2 Levin
- Replies: 28
- Views: 3044
Re: OST-070: 7AGE for an N2 Levin
Time to get the belt on and set cam timing. But first we have a small problem to deal with... instead of a 116 tooth timing belt, I ended up with a belt with 119 teeth.... https://gallery.ostportworks.com/albums/userpics/10005/timing_belt_2_panel_annoted.jpg ....someone put the wrong belt, into the ...
- Thu Dec 10, 2020 2:37 pm
- Forum: TECH: 4A-GE ENGINE
- Topic: help a n00b build a 1.8L 4age?
- Replies: 24
- Views: 1814
Re: help a n00b build a 1.8L 4age?
The efficiency ... What would be a more appropriate value to use? You'd be the guy who would know! Stock bigport vs a port job completed by you. I just estimated 75% since the B-series head was a little over 75% too. Same "style"; twin cam, 16v, etc. And the valves, there honestly wasn't ...
- Wed Dec 09, 2020 4:15 pm
- Forum: TECH: 4A-GE ENGINE
- Topic: OST-069: Transformation
- Replies: 5
- Views: 652
Re: OST-069: Transformation
So... this package cleared customs 3 days ago....... what could it be....... https://gallery.ostportworks.com/albums/userpics/10005/Todas_cams_and_valvetrain_kit.jpg A full Toda BSpec valve train kit*... along with a pair of Toda 272 10.3mm cams... :shock: * The BSpec kit is completely different the...
- Wed Dec 09, 2020 7:24 am
- Forum: TECH: 4A-GE ENGINE
- Topic: help a n00b build a 1.8L 4age?
- Replies: 24
- Views: 1814
Re: help a n00b build a 1.8L 4age?
Since you need reliable info... a few corrections.... intake valves are not 29.5, but 30.5. Stock chambers are 36cc
And since you are playing.... what happens if you change the valve sizes from 30.5 to 32, and from 25.5, to 27.5
As to efficiency... how did you calculate that...?????
And since you are playing.... what happens if you change the valve sizes from 30.5 to 32, and from 25.5, to 27.5
As to efficiency... how did you calculate that...?????
- Fri Nov 27, 2020 7:31 am
- Forum: TECH: 4A-GE ENGINE
- Topic: OST-069: Transformation
- Replies: 5
- Views: 652
Re: OST-069: Transformation
I have seen people smooth the valve guides down so they are flush with the IN/EX channel, is there any reason for doing this, or is it overdoing it.? good question.... I assume you mean something similar to this..... https://gallery.ostportworks.com/albums/userpics/10005/no_guide_smallport_porting....
- Tue Nov 24, 2020 9:52 am
- Forum: TECH: 4A-GE ENGINE
- Topic: OST-070: 7AGE for an N2 Levin
- Replies: 28
- Views: 3044
Re: OST-070: 7AGE for an N2 Levin
Cometic delivered a new .023" (their thinnest) head gasket.... (the deck on this engine was .012" down) making sure it is installed correctly... https://gallery.ostportworks.com/albums/userpics/10005/proper_gasket_alignment_2_panel.jpg If installed incorrectly the red circles are where the...
- Sun Nov 22, 2020 8:55 am
- Forum: TECH: Inline 6's and V8's (JZ, G, UZ etc...) and Big Sedans
- Topic: Lit'lphant - Toyota's Hemi V8
- Replies: 43
- Views: 19341
Re: Lit'lphant - Toyota's Hemi V8
Just an update... this build hasn't stopped, it's just on a short hold while we fit the drivetrain to the chassis.... https://gallery.ostportworks.com/albums/userpics/10005/normal_20201029_134517.jpg https://gallery.ostportworks.com/albums/userpics/10005/normal_fitting_drivetrain2_-_engine2C_trans2C...
- Thu Nov 12, 2020 1:05 pm
- Forum: TECH: 4A-GE ENGINE
- Topic: OST-069: Transformation
- Replies: 5
- Views: 652
Re: OST-069: Transformation
Maybe I have missed this, but you have a big tumble cleaner that are large enough to fit engine heads? :dumb: No, one of the machine shops I use has a large "tumbler" - large enough for blocks! The tumbler is partially filled with zinc shot. They close the lid and the head is dragged repe...
- Thu Nov 12, 2020 7:16 am
- Forum: Automobiles for Sale
- Topic: ITA AE86 originally built by TRD USA
- Replies: 10
- Views: 10200
Re: ITA AE86 originally built by TRD USA
Wow such a historic car, but ive never heard of TRD HD axles !!!!?? TRD used to make bigger axles?? Any specs on this?? neither had I... nor could I find any printed info. What I can say, they were indeed different. One even had what was left of a TRD tag... but of course the part number was comple...
- Thu Nov 05, 2020 8:31 am
- Forum: TECH: 4A-GE ENGINE
- Topic: OST-069: Transformation
- Replies: 5
- Views: 652
OST-069: Transformation
https://gallery.ostportworks.com/albums/userpics/10005/ost-069.jpg OST-069 begins its transformation with a cleaning..... Nasty..... top https://gallery.ostportworks.com/albums/userpics/10005/prior_to_disassembly.jpg and bottom.... https://gallery.ostportworks.com/albums/userpics/10005/disassembled...
- Fri Oct 30, 2020 9:59 am
- Forum: TECH: 4A-GE ENGINE
- Topic: OST-070: 7AGE for an N2 Levin
- Replies: 28
- Views: 3044
Re: OST-070: 7AGE for an N2 Levin
A quick look at the "new" bottom end before it gets closed up.... can you spot any new balancing?? https://gallery.ostportworks.com/albums/userpics/10005/assembled_short_block_crank_view.jpg So with the proper head gasket on order, some of the details need further planning... For one... wh...
- Fri Oct 30, 2020 9:10 am
- Forum: TECH: 4A-GE ENGINE
- Topic: help a n00b build a 1.8L 4age?
- Replies: 24
- Views: 1814
Re: help a n00b build a 1.8L 4age?
Jayrdee wrote:
Also, Oldeskewltoy I looked at the valves and they're all ~6mm stems. I think BC is confused on their website.

- Mon Oct 19, 2020 4:27 pm
- Forum: TECH: 4A-GE ENGINE
- Topic: help a n00b build a 1.8L 4age?
- Replies: 24
- Views: 1814
Re: help a n00b build a 1.8L 4age?
spoke to Loynings... max they run is 1mm(.040") oversize
- Sun Oct 18, 2020 5:43 pm
- Forum: TECH: 4A-GE ENGINE
- Topic: help a n00b build a 1.8L 4age?
- Replies: 24
- Views: 1814
Re: help a n00b build a 1.8L 4age?
I can ask Loynings...... The end goal is a reliable HPDE weekend / backroads "touge" racer; plenty mid-range power with a decent torque curve. And still be able to drive to work on Monday with no problems. above is why I recommend going with something a bit less challenging**.... maybe BC ...
- Fri Oct 16, 2020 8:59 am
- Forum: TECH: 4A-GE ENGINE
- Topic: help a n00b build a 1.8L 4age?
- Replies: 24
- Views: 1814
Re: help a n00b build a 1.8L 4age?
So, this weekend I'm getting a bunch of Brian Crower 4age stuff in a trade deal. - 1.8L Stroker kit - 83mm stroke with 83mm 11:1 pistons (PN: BC0360) - Intake Valves - 32mm / +1.5mm (PN: BC3362) - Exhaust Valves - 27mm / +1mm (PN: BC3363) - Valve Guides (PN: BC3938/39) - Billet Keepers/Locks (PN: B...
- Fri Oct 16, 2020 8:23 am
- Forum: TECH: 4A-GE ENGINE
- Topic: help a n00b build a 1.8L 4age?
- Replies: 24
- Views: 1814
Re: help a n00b build a 1.8L 4age?
So, this weekend I'm getting a bunch of Brian Crower 4age stuff in a trade deal. - 1.8L Stroker kit - 83mm stroke with 83mm 11:1 pistons (PN: BC0360) - Intake Valves - 32mm / +1.5mm (PN: BC3362) - Exhaust Valves - 27mm / +1mm (PN: BC3363) - Valve Guides (PN: BC3938/39) - Billet Keepers/Locks (PN: B...
- Tue Oct 13, 2020 8:15 am
- Forum: TECH: 4A-GE ENGINE
- Topic: OST-070: 7AGE for an N2 Levin
- Replies: 28
- Views: 3044
Re: OST-070: 7AGE for an N2 Levin
over coming "challenges"...... Essentially this is a 2 part job - part one, build the foundational parts(rear cover), part two - make a filler panel . So, the filler panel would need to be light, and strong, and easily shaped - that would hold its shape. https://gallery.ostportworks.com/al...
- Tue Oct 13, 2020 7:27 am
- Forum: TECH: 4A-GE ENGINE
- Topic: Dumb question time, of wrist pins & modifying pistons
- Replies: 7
- Views: 749
Re: Dumb question time, of wrist pins & modifying pistons
I wont go into a lecture....... A long time ago (mid 1970s, when I worked for VW) I learned the difference between "it will fit", and, "designed to fit THIS application". I've found I NEVER get the results others seem to achieve by taking short cuts - I do still test this on occa...
- Tue Sep 29, 2020 9:43 am
- Forum: OWNERS and BUILDERS
- Topic: Surreptitious
- Replies: 26
- Views: 15501
Re: Surreptitious
When initially building Surreptitious, I had some mirror issues, (I would have liked the vintage Hellas's.... oh well) and somewhat settled on the GT mirrors that I have. https://encrypted-tbn0.gstatic.com/images?q=tbn%3AANd9GcSPaFVrDN-SE4iCoPgg28POFK76rX6yLpizkU7IczIh5idowXLnpuO6nR4QgtgWyKLv8y6f9j4...
- Fri Sep 25, 2020 10:40 am
- Forum: TECH: 4A-GE ENGINE
- Topic: OST-068: Smok'n
- Replies: 9
- Views: 2366
Re: OST-068: Smok'n
OK. I'd think that big aluminum ridge around the seat would do more then a bit, but I've got 0 flowbench experience and can only go by what looks aerodynamically pretty to my eye. Thanks. https://scontent.fhio2-2.fna.fbcdn.net/v/t1.0-9/71767363_678576265952246_6405435743317000192_n.jpg?_nc_cat=107&...
- Wed Sep 23, 2020 9:35 am
- Forum: TECH: 4A-GE ENGINE
- Topic: OST-070: 7AGE for an N2 Levin
- Replies: 28
- Views: 3044
Re: OST-070: 7AGE for an N2 Levin
So... While this is going into an N2 replica, it is being fitted with timing covers to protect the timing belt, and to keep the cam seal retainers*. This requires some fabrication, as there never was a 7AGE, so the timing covers don't readily fit. Additionally, an idler is being added to the long si...