help with how i should build my 4age. sorry new to toyota

[matto1kute]

hey guys im very new to toyota. i have a datsun 1000 ute that later down the track i wanna put a 4age in because the t50 box fits my tunnel and the 4age fits in too. i want this thing non turbo and im not shooting for major horsepower.

so far i have a stock smallport head and a set of 2006 cbr 44mm quad throttlebodys (with inbuilt injectors)

i was thinking of using a 7 rib block, using hi comp pistons (unsure if i go forged or not), forged rods, cams, valve springs, aftermarket computer and staging the stock injectors with the bike ones.
i wasnt sure if i should port my head and get bigger valves. what do u guys recommend? also what dizzy do i use if i just want to run a normal electronic style dizzy?.

also what parts can i use of a 3 rib big port on a 7 rib smallport? does engine backing plate, flywheel, dizzy, ect fit. thanx guys

[roadsailing]

how much power do you want and how much money do you have? at 44mm the throttles you have are marginally smaller than silvertop 20 valve 4AGE quad throttles, so i wouldn't bother with bigger valves etc. Cams will depend on what you will use the ute for.

have you ever driven a car with a 4AGE? even a rebuilt stock smallport will give you plenty of poke in a small car.

bigport flywheel has a smaller clutch than the smallport but it will bolt up (both are 8 bolt flywheels) dizzy is interchangeable.

[DOG the rolla hunter]

sr20 end of problem.do all that shit and be blown away by sr anyway

[Pidgey]

sr20 end of problem.do all that shit and be blown away by sr anyway
HAHAHAHAHAHA. No.
This reminds me of the S13 I saw today on the side of the road. Pulled over, asked the guy what happened and his reply was "Head gasket"...
4AGE for the win. Sell the throttlebodies and just go blacktop 20V ones.
Actually, for what you're willing to pay, why not just go 20V?
Less work for more power.

[shift_rook]

how much power do you want to make? silvertop throttle bodies ar 42mm blacktop are 45 i'm pretty sure so as long as you can do all the fab yourself to make those throttles work then they'll be great. 20v's are a little more involved to install due to their water system but most of the stuff can be bought off a member off here, 16v are great and ahve plent yof potential for more power if you want to go bigger cams etc etc, chuckin up how much power you'd like to make people may be able to help you more with exactly what you need, a healty smallport with light work will make an easy 80kwatw so that gives you an idea, can get 100atw out of them reliably, any more than that and you'll start to sacrifice driveability

[Sam-Q]

can you post a pic of those throttles? if you do fit them being 1mm bigger than the silvertop 42mm ones you can modify your engine as much as you want and not being restricted by them.

Does beg the question about the 20V though.

Staged injection is a great idea, who would make the manifold for you?

All 4A engine have forged rods stock

Also I suggest you click on the link in my signiture and have a look at the articles

[matto1kute]

the throttlebodys are still rocking up so i wont have pics yet. i wont go sr or ca (even though i have a sr laying around) cause i want a little revy motor that fits. my ute weighs 615kg and has a (i think) 4.44 ratio diff stock. im not aiming for horsepower. im just gonna colect bits and pieces and put it together when im done and see how it goes. i wanted to use the throttlebodys cause i paid $60 for them lol but also they are 44mm, has a TPS and has injectors so i though i could use them as the second stage injectors insted of getting bigger ones for my head (hope that make sence). are all smallport and bigport dizzys the same? i just dont wanna get one that maybe a cas or somthing. cheers for the help guys.

[roadsailing]

tare all smallport and bigport dizzys the same? i just dont wanna get one that maybe a cas or somthing. cheers for the help guys.

mechanically, yes as i stated before. you can use either as a CAS but you will either have to convert it to a fairly mechanical dizzy or use an ignition computer to run it standalone. Just build the engine stock, i'm sure you will be more than happy with it.

[matto1kute]

yea but thats just no fun but i hear ya. its to tempting to make it lump

[Sam-Q]

well just getting it running as is and mod it later? who would make your manifold? I am sure your stock injectors would be enough either way however staged injection is still great but it would take a lot of tuning I think though

[Jdm-Mcc]

WOOO datsun 1000!

[matto1kute]

i will make my manifold

[matto1kute]

ive got hold of a gze bottom end. does anybody know how much i can shave the small port head to raise compression?

[Sam-Q]

this on my site shows a 0.8mm gasket which is 0.4mm thinner.

http://s-86.com/s-cr-chart.html

Where do you want it to end up?

[matto1kute]

im not sure but i wanted to add a mild cam and after market valve springs. i know the small port runs over 10:1 compression so i gather more than that? what do u guys recommend?

[matto1kute]

okok i have had my arm twisted. considering i now have a forged 4agze bottom end and a mtx-8 suit 4agze plus a guy i know is helping me out with a inlet, turbo manifold and dump pipe so im now going 4agte. soooooooo here i start again (sorry guys) i have a small port head (stock), forged 4agze bottom end, stock cutn shut inlet, turbo manifold, just got hold of a 04 wrx 1k old turbocharger and i have a t50 coming as soon as the guy pulls it out. anything else i need? i gather the small port head has the 4age stock cams. will i have to go gze cams? are small port and big port cams different?

[blair]

If your going turbo, i'd have a think about going for a W series gearbox setup...

[matto1kute]

i cant. im lucky that T series fits my datto1000. do remember it only weighs 615kg so there would be less strain on the gearbox

[Skylar]

gze cams are smallport cams. Bigport cams are bigger, 240/7.56mm vs 232/7.1mm or something. Sorta not worth the effort unless you don't mind swapping shims out.

When you say the diff fits, you mean it *just* fits with posi offset wheels or you can put 15x6.5 +18 and have it flush?

I reckon the car will end up at around 700kg

[matto1kute]

actually it doesnt fit. i compared them next to my 1000 diff and its a bit wider. i have sourced another diff. a 1200 ute diff. it can aparently take 225lb.ft. its a bolt in too. now i can have ratios from 3.9, 4.11& 4.875. i recon ill go with the 4.11. also does the stock small port inlet flow good enough for turbo?