intakemanifolds which ones better?

jedi · Post by **jedi** » Tue Oct 28, 2008 4:16 pm

Hi guys just wonder is there any different's in these intakemanifold and which ones better? this top one looks like its the same as 86-89 ones but its in my 84 ja gsr3 starion from factory :? the guy i bought this car few years back recon in was an early prototype of the intercooled turbos which i dout anyway.

(A) mine

(B) on my spare engine

redzone · Post by **redzone** » Tue Oct 28, 2008 5:13 pm

JB starion came out with the type B injection (like the top pic) in late 84, so its quite possible. the type A has a larger throttle body but the type B is a shitload more reliable.

Nosaki Faki · Post by **Nosaki Faki** » Tue Oct 28, 2008 7:35 pm

what is involved in swapping from type 1 to type 2?

jedi · Post by **jedi** » Tue Oct 28, 2008 9:20 pm

Nosaki Faki wrote:what is involved in swapping from type 1 to type 2?

This is a guess but i think not a hell of alot should bolt straight up the only thing i can see is the mouth of the intakes are different ones round the other an oval. it sound like the A ones the best so don't think ill change it. :)

Nosaki Faki · Post by **Nosaki Faki** » Wed Oct 29, 2008 6:13 am

bolt up is one thing, how about fuel lines vaccuum lines and other shit.
Which is best really depends on what you want I suppose, I'm leaning toward reliability.
I have a lot of stuff to go mpi anyway buy don't know which car I should put it on, then will probably go with type 2 on the other one.

redzone · Post by **redzone** » Wed Oct 29, 2008 7:27 am

argh your post edit has made it confusing for other people..

TYPE A is the early style with ECI on the top and an oval air inlet

TYPE B is the late style with the visible injectors and round air inlet.. this one is more reliable, and you can get other injectors to fit.

NachoMan · Post by **NachoMan** » Wed Oct 29, 2008 10:41 am

Ummm, the post I'm looking at now shows the B-type injection manifold, as fitted to the JB/JD on top, and the JA manifold on the bottom...

Anyhoo, use the one that doesn't have the big round flat top that says ECI on it. These are the older systems and are prone to leaking, and are not as efficient.

jedi · Post by **jedi** » Wed Oct 29, 2008 4:00 pm

RIGHT lets sum this up

(A) Is the top pic . Thats in my starion currently. its a 84 ja

(B) is the bottom pic with ECI that engine is not in the car i bought for spares

im currently running manifold (A) all i wanted to Know is which ones better for performance thanks Redzone which i'm running the best one by the sound of it anyway., I've been running (A) for five years its never given me any trouble. :beer

thanks and sorry if i confused anyone.

Nosaki Faki · Post by **Nosaki Faki** » Wed Oct 29, 2008 8:07 pm

Early type has ECI later type doesn't then.
Right, say I have the one with ECI on the car, what needs to be changed to use the one that DOES NOT have ECI on it?
Wiring? ECU? Fuel lines and fittings?

Mr Ralliart · Post by **Mr Ralliart** » Wed Oct 29, 2008 10:03 pm

Yes . It's not a simple swap , but worth it if you have all the bits . You need more than just the throttle body , you need all the wiring , connectors , plugs and so on . And a sympathetic Mechanic .

redzone · Post by **redzone** » Wed Oct 29, 2008 11:03 pm

nosaki dont bother, getting the bits required for yours over here would be a pain. just mpi that truck motor :)

jedi · Post by **jedi** » Thu Oct 30, 2008 10:13 am

Yes MPI is the way to go realy although there's alot of work in that but worth it. but i'm use the spare block to build up a dohc engine for mine. so no real point putting mpi on mine.

thrash · Post by **thrash** » Thu Oct 30, 2008 11:15 am

jedi wrote:. but i'm use the spare block to build up a dohc engine for mine.

is there any difference between ja and jb/jd blocks? or is all the same block until the evo 4s?

RiceThief · Post by **RiceThief** » Thu Oct 30, 2008 3:02 pm

Ja, Jb and Jd blocks are the same, evo 1 - 3 are different, evo 4 onwards different again.

Nosaki Faki · Post by **Nosaki Faki** » Fri Oct 31, 2008 6:33 am

nosaki dont bother, getting the bits required for yours over here would be a pain. just mpi that truck motor

"Truck motor" is already the later type but since Vicroads don't want to let me register it I am picking up the ALSPOS blue unit on the weekend, I need to work out what I'm doing now, will probably use the gold 2.6 one as a track car and blue one as a daily driver.
Which one to MPI is the question.
Might be poll time.

Austarion

intakemanifolds which ones better?

intakemanifolds which ones better?

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