I believe these are also different. For one, the taillamps use different harnesses, and different taillamps.

yes, significant. US models used an air flow meter to set fuel flow, while the JDM models used manifold pressure(vacuum) to set fuel flow. Completely different systems.

Wow... it's been a year... but somethings never change, and again track season is around the corner....... I've got a finished largeport (OST-113) ready for a new owner. This head build is for a stock, to moderate build utilizing cams from stock duration up to 272, with lifts of upto 9mm. Later this...

Gottcchaaaa... Very good to know! I think I might be okay since my cams aren't as aggressive as your poncams from a degree standpoint. I had Dan (oldskewltoy) source me some Cat 244 / 8mm lift cams. What compression ratio pistons did you get? I'd be very curious to see what kind of numbers you will...

I can buy a 20v silvertop head quite cheaply to try, do you know if there is any truth in coolant passages not aligning correctly with 16v engine blocks? l thought all of the later blocks were the same. as far as I know the only issue with using a 20V block is one of the cast reinforcements (with /...

bigport manifolds are quite restrictive - especially just above the bend. Even without TVIS I don't believe it flow as much as the smallport manifold. The 20V is likely got the best potential as far as capable intake flow. The Silvertop head has 36cc chamber volume same as the 16V heads, while the B...

should be interesting to follow if nothing else........

pretty sure one of my client's attempted to use them.... but they ended up having to go back to OEM. Something about the breather

BC springs are good for 11mm of lift and fit in the stock spring seats. I've checked - https://www.club4ag.com/forums/viewtopic.php?t=15683&start=30#p104740 I don't run the engine past 8200 rpm do you think those springs would cope ok? (Re. the comment about 7MG quality in the post) Engine uses...

BC springs are good for 11mm of lift and fit in the stock spring seats.

I've checked - viewtopic.php?t=15683&start=30#p104740

one problem with stroker kits, you tend to lose crankshaft strength because you lose journal overlap.

and packed in a 4 mil bag keeping it clean

Thanks for the pics. WOW, that spring comp., you've spent a LOTTA time with it even if you do the removal with a hammer & socket! Weld a nut & use your drill?? / Also, a nicer surface might increase its sellability. The surface has been machined... .004". I'll get a photo tomorrow........

For sale: OST-105, a 2nd gen standard valve bigport head. Fully ported, and rebuilt using new viton rubber valve seals, and BC valves springs (good for cams with upto 10mm of lift) $1300 + shipping - NO CORE REQUIRED https://gallery.ostportworks.com/albums/userpics/10005/normal_ost-105.jpg nicely po...

Not a fan of test beds for engine break-in. You can't put a load on them to properly break in the rings.

Kuromi_loves_toyota wrote:sick! ill definitely use your work as reference material, if you dont mind could i send you a private message about a commission?

sure....

been slowly gathering parts.. so far i have some cams, and a whole rotating assembly. my cylinder head needs some work so im sending it into a machine shop soon. so i was thinking i might as well have my exhaust and intake ports shaved and polished too, does anyone have any advice about this? there...

Web no longer offers new cams, they do offer their hardweld service - this welds new material to the lobe so they can be reground without loosing "base circle". They are not cheap (currently listed for $1050 per pair) Just for discussion purposes..... Cat offers a 252/222 cam with 8.5mm li...

Some recent doings........ 3 different heads... top is a silvertop 20V, middle in a 3TC intake manifold, and bottom is a 1GGE https://gallery.ostportworks.com/albums/userpics/10005/normal_intake_short_radius_before_after_2_panel.jpg https://gallery.ostportworks.com/albums/userpics/10005/manifold_wel...

stock early cams are 204 degrees at .050, later cams are 198. Duration at a specific lift is a more accurate measure of a cam then "advertised duration" As far as the Cat cams are concerned, I can also get matched sets (same duration for both). Stock cams stop making power at 6600 rpm. The...

Not sure why I haven't seen this thread before......... If your budget is correct, "3500-4000 $ budget" you will be tough pressed to build much. A 7AG would add a bit more as well. I'd recommend you start listing the costs of all you have mentioned, add in rebuilding parts (bearings, pumps...

Another not a fan for a 7AG 20V, the intake valves are too small, compared to a fully ported big valve largeport head. also the TRD F/A ITBs don't require an adapter for use on a largeport head. I wouldn't want to see the air flow disruption with an adapter that goes from the long wide TRD ITB to th...

The engine is done........... ;) But there are some updates.... 1) I managed to score an OEM 85amp alternator... in working order! https://gallery.ostportworks.com/albums/userpics/10005/test_fitting_mounts2C_alt2C_starter.jpg 2) The engine does "fit".... kinda (larger photo) - http://galle...

Congrats! As you know, I'm going a bit older in my Toyota story.... but I DO understand the move forward

try Traum??

https://img1.wsimg.com/blobby/go/df1eb0 ... 1851008435

Above is link to labor rates for one of the shops I use....... it's an excel file

Not sure if you realize the outer holes are where the injectors fit. The only bolt holes are between the ports - either side. As far as supercharging this, it was an option when I began 3 years ago.... but one of my searches found a boosted one that may have caused liner shift @ about 400hp. Remembe...

installed a roll pin so that I could set the T/B on to the 5V manifold. Once pinned, I scribed the new opening, and opened it from 65mm, to 70mm/ https://gallery.ostportworks.com/albums/userpics/10005/normal_intake_manifold_and_Ford_70mm_throttle_body_fitted_showing_roll_pin.jpg full size image - ht...

It's getting closer.... A bit further.... while the thermostat is essentially the same, the t-stat housing/coolant outlet gasket is only 5V, so I bought ($6) some gasket material and made one. https://gallery.ostportworks.com/albums/userpics/10005/normal_T-stat_housing_and_gasket.jpg https://gallery...