Search found 2183 matches
- Thu Dec 10, 2020 2:37 pm
- Forum: TECH: 4A-GE ENGINE
- Topic: help a n00b build a 1.8L 4age?
- Replies: 24
- Views: 18754
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: 8025
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: 18754
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: 8025
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: 30
- Views: 25811
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: 72
- Views: 107645
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: 8025
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: 28271
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: 8025
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: 30
- Views: 25811
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: 18754
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.
Doess the diameter of the head measure 27, or 27.5??
- Mon Oct 19, 2020 4:27 pm
- Forum: TECH: 4A-GE ENGINE
- Topic: help a n00b build a 1.8L 4age?
- Replies: 24
- Views: 18754
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: 18754
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: 18754
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: 18754
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: 30
- Views: 25811
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: 7065
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: 28
- Views: 38911
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: 9307
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: 30
- Views: 25811
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...
- Wed Sep 23, 2020 8:21 am
- Forum: TECH: 4A-GE ENGINE
- Topic: Ideal intake length for stock 4AGE 16v bigport?
- Replies: 21
- Views: 14759
Re: Ideal intake length for stock 4AGE 16v bigport?
Thanks again Jondee86 and Oldeskewltoy. So, as i said in an earlier post, I need to keep the engine stock until the car has passed the individual vehicle approval test I have to put it through here in the UK. Due to the unique design of the car, on the exhaust side, i will have to fit a custom 4-2-...
- Sun Sep 20, 2020 10:45 am
- Forum: TECH: 4A-GE ENGINE
- Topic: OST-070: 7AGE for an N2 Levin
- Replies: 30
- Views: 25811
Re: OST-070: 7AGE for an N2 Levin
I have never seen a better way to see actual porting results than that blue rubber thing :) "I have used other valves to protect seats when I've done the chamber work in the past - when I have machined seat to protect, in this case the seats haven't been cut, so I didn't need to protect them.&...
- Sun Sep 20, 2020 10:33 am
- Forum: TECH: 4A-GE ENGINE
- Topic: Ideal intake length for stock 4AGE 16v bigport?
- Replies: 21
- Views: 14759
Re: Ideal intake length for stock 4AGE 16v bigport?
Corrected a few errors and amended the figures to something more representative of the cams that you might end up with. Didn't really have much effect on the length calculated by the program. So I am inclined to think that the length is probably less important than making sure that the airflow path...
- Mon Sep 14, 2020 11:01 am
- Forum: TECH: 4A-GE ENGINE
- Topic: OST-070: 7AGE for an N2 Levin
- Replies: 30
- Views: 25811
Re: OST-070: 7AGE for an N2 Levin
Love the details :cheer: As I am going to use a TVS supercharger 900 or 1320 on my build, with High Lift cams, I was commended to go with 38mm (37mm) Exhaust port. Do you perhaps know if the 38mm gasket is a 1:1 copy of an TODA gasket? Just to compare what the local tuner recommends compared to you...
- Thu Sep 10, 2020 12:27 pm
- Forum: TECH: 4A-GE ENGINE
- Topic: OST-070: 7AGE for an N2 Levin
- Replies: 30
- Views: 25811
Re: OST-070: 7AGE for an N2 Levin
Bowl #8... as it transitions from stock to oversize https://gallery.ostportworks.com/albums/userpics/10005/bowl_8__3_panel.jpg a different perspective.... on the transition https://gallery.ostportworks.com/albums/userpics/10005/short_radius_3_and_4_2_panel.jpg head is now ready for the new seats to ...
- Thu Sep 10, 2020 11:13 am
- Forum: TECH: 4A-GE ENGINE
- Topic: Ideal intake length for stock 4AGE 16v bigport?
- Replies: 21
- Views: 14759
Re: Ideal intake length for stock 4AGE 16v bigport?
Here is an example of an on-line calculator from Wallace Racing... https://i.imgur.com/T2vc1D8.jpg http://www.wallaceracing.com/intake-runner-length.php For the purposes of generating an example I have entered up a reasonable approximation (I hope :) ) of the kind of values you would be using. From...
- Thu Sep 10, 2020 10:13 am
- Forum: TECH: 4A-GE ENGINE
- Topic: Ideal intake length for stock 4AGE 16v bigport?
- Replies: 21
- Views: 14759
Re: Ideal intake length for stock 4AGE 16v bigport?
raising the compression in a 4AG pretty much requires $$ being spent. You will either need new pistons, or a set of adjustable timing pulleys, I'd actually recommend both. ** - One thing - there are 2 different rod/crank combinations that were in largeport 4AGEs. 1984 - mid 1987 3 rib blocks, got &q...
- Wed Sep 09, 2020 7:04 am
- Forum: TECH: 4A-GE ENGINE
- Topic: Ideal intake length for stock 4AGE 16v bigport?
- Replies: 21
- Views: 14759
Re: Ideal intake length for stock 4AGE 16v bigport?
4. You mention that you have 272 degree cams in your 4AGE. I have a pair of HIS 272 degree, 8.1mm lift cams I'm going to put in the engine once the car is registered and was wondering how they might behave i.e. how smooth is the idle with yours, whats the power range and what rpm do you make peak p...
- Mon Sep 07, 2020 8:29 am
- Forum: TECH: 4A-GE ENGINE
- Topic: OST-070: 7AGE for an N2 Levin
- Replies: 30
- Views: 25811
Re: OST-070: 7AGE for an N2 Levin
The Exhaust gasket you are using here, what specific model is it, and from what company? The gasket was a collaboration between myself, and SV3* (before they closed). Essentially it is a Blacktop gasket(35mm port exit), that fits both 16V and 20V heads. It also has slightly "adjusted"(.02...
- Sat Aug 29, 2020 10:15 am
- Forum: TECH: 4A-GE ENGINE
- Topic: OST-070: 7AGE for an N2 Levin
- Replies: 30
- Views: 25811
Re: OST-070: 7AGE for an N2 Levin
... and an exhaust port capable of much greater flow........
more to come....
more to come....