4age suggestions

kp roku ichi
Club4AG Regular
Posts: 25
Joined: Sun Apr 28, 2013 12:12 pm

4age suggestions

Postby kp roku ichi » Thu Feb 26, 2015 7:56 pm

need suggestions on fuel and ignition system for my 4age blue top engine. engine will be mounted on a 1981 toyota starlet

the engine currently have the following
81mm FA pistons
trd 304 / 288 cams
trd shim under bucket
hks valve springs
h-beam rods
balanced crank
trd 0.5mm head gasket

for the fuel system, I have T3 ITB adapter with ae111 throttles. I also have a TRW DCOE manifold with weber 45's.
for the ignition system, I want a COP setup but I don't have any of the parts yet. all i have is a cam angle sensor mounted on a late model atlantic cam cover.

My target:
It will not be installed on a track car. It will be for my weekend/car meet ride, so I'll also be installing an AC system to it.

question:
What will be more suitable fuel system for me? the T3 itb's with megasquirt or the weber DCOE?

I want a COP igntion, would a megajolt with dual EDIS-4 be enough?

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oldeskewltoy
Club4AG MASTER
Posts: 2184
Joined: Wed Jan 09, 2013 4:44 pm
Location: Portland, Oregon

Re: 4age suggestions

Postby oldeskewltoy » Fri Feb 27, 2015 9:09 am

kp roku ichi wrote:need suggestions on fuel and ignition system for my 4age blue top engine. engine will be mounted on a 1981 toyota starlet

the engine currently have the following
81mm FA pistons
trd 304 / 288 cams
trd shim under bucket
hks valve springs
h-beam rods
balanced crank
trd 0.5mm head gasket

for the fuel system, I have T3 ITB adapter with ae111 throttles. I also have a TRW DCOE manifold with weber 45's.
for the ignition system, I want a COP setup but I don't have any of the parts yet. all i have is a cam angle sensor mounted on a late model atlantic cam cover.

My target:
It will not be installed on a track car. It will be for my weekend/car meet ride, so I'll also be installing an AC system to it.

question:
What will be more suitable fuel system for me? the T3 itb's with megasquirt or the weber DCOE?

I want a COP igntion, would a megajolt with dual EDIS-4 be enough?



What is the cam lift?? HKS valve springs work decent enough on HKS MILD cams (256-272), I'm not entirely sure those springs will work with those cams.......
OST Cyl head porting, - viewtopic.php?f=22&t=300

Building a great engine takes knowing the end... before you begin :ugeek:

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kp roku ichi
Club4AG Regular
Posts: 25
Joined: Sun Apr 28, 2013 12:12 pm

Re: 4age suggestions

Postby kp roku ichi » Fri Feb 27, 2015 6:08 pm

lift is 10mm. we checked and i think my machinist made necessary adjustments to avoid coil bind. As for valve float, i've seen an engine before, reving past 10k rpm and the owner said that he uses HKS valve springs. I have no plans of reving mine past 9k rpm, so i guess it would be enough.