Custom 998 manifolds
Turbo Mini Forums

I agree with what you say about trying to make the most of a setup. For now I have tried to make the most of what I have got, trying to make everything work the best it can within my limitations, along with the relieving of stress on the engine whilst doing so and the possible increase in mpg, it should have better torque than if i didn't try to make the best of it. I'm all for making small changes to make things better. I'll probably try out a tuned length set of manifolds after i get to grips with the stuff I've got. I'll probably upgrade from the dinosaur t3 at that point too.

thats a good plan, one bite at a time.

do you guys make those bends or buy them?

you can do anything if you set your mind to it...
i rather blow it up winning than keep it together losing.

finish date set for project 1... march 2018

i have my sprite for all out fun and games. i just wanna build a motor into the elf, kinda standard looking, brass nuts ect ect and fit a small turbo down the back so it doesnt look too out of place and just gives it a bit of legs.

balls to the blower!!!



1330,stage3 head, gt1549, canems ecu, S/C box and drops

Buy, got them mega cheap on evilbay

Paul, I knew there was a good gain to be had but did not thing it was really that much..

As you may know ive done a design like your yellow type?
my question is would i possibly gain from changing the collector to dump right at the turbo rather than that long pipe?

the 3-1 collector is a nice rounded shape inside
that kink above the flanges is not that bad its the pic btw

perhaps i should look at doing a pulse matched intake manifold ?





sorry dont intend for this to be a thread jack but to add to it is some way that helps others as well..

Thread jack all you want - thats what forums are for - Discussing!

I wouldn't change that. Put your efforts into the inlet.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

cool, think ive read that about 300mm is somewhere correct on length what about diamter?

id do the sort of wet? mani i guese u call it ie head runners plemum chamber carb feeding chamber

how whould/should i go about maintaining the proper fuel bown pressure n stuff that the factory plenum gives?

So from what i see here modificate a normal aftermarket big bore lcb would not be that bad of an option?

you can do anything if you set your mind to it...
i rather blow it up winning than keep it together losing.

finish date set for project 1... march 2018

300mm long and 35mm bore. 1 1/2" OD stainless or aluminium 16swg stuff is ideal. Challenge is getting 300mm runners in the space, but it can be done.

I don't know about carbs, besides I thought you were running MS3?

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

An LCB could be modified, but I don't think it would last long as they operate at high temperature.

Avoid the big bore LCB. I know that it is counter-intuitive but the standard bore LCB dimensions will generate higher amplitude pulses. Average pressure loss over the engine cycle will be higher, but it will be lower when the exhaust valve is open.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

Hmm. Shame. Cant weld stainless. Tought there wzs zn easy shortcut...

you can do anything if you set your mind to it...
i rather blow it up winning than keep it together losing.

finish date set for project 1... march 2018

chek out wintersurfers build thread,

he bought a setup that was hacked from an LCB, although its not pretty, it has stayed in one bit.

What Andy said, it's not going to be as pretty as tig welded stainless, but then again youre only going to see it if you're underneath the car, in which case you're fixing something else or you've happened to run yourself over. Or stood over the engine bay looking down the back of the block, which in some cases could be just as painful as running yourself over.

On 22nd Jan, 2014 apbellamy said:

On 22nd Jan, 2014 Rammie2000 said:
Hmm. Shame. Cant weld stainless. Tought there wzs zn easy shortcut...

Why not? New liner in the MIG, stainless wire and a small cylinder (carefully worded for Rod S ) of pure Argon and you are away.

On 22nd Jan, 2014 Carlzilla said:
What Andy said, it's not going to be as pretty as tig welded stainless, but then again youre only going to see it if you're underneath the car, in which case you're fixing something else or you've happened to run yourself over. Or stood over the engine bay looking down the back of the block, which in some cases could be just as painful as running yourself over.

On 22nd Jan, 2014 apbellamy said:

On 22nd Jan, 2014 Rammie2000 said:
Hmm. Shame. Cant weld stainless. Tought there wzs zn easy shortcut...

Why not? New liner in the MIG, stainless wire and a small cylinder (carefully worded for Rod S ) of pure Argon and you are away.

you can do anything if you set your mind to it...
i rather blow it up winning than keep it together losing.

finish date set for project 1... march 2018

Paul's butcherd LCB is holding up fine. The only issue he has had is with the flanges that meet the face of the head. On NA stuff (like an LCB) these are generally thinner, so he's experienced issues with them not being dead flat (presumably warped) and not sealing.

He's making big power for the spec too. Over 150 nanas at just 10psi.

In the 13's at last!.. Just

you can do anything if you set your mind to it...
i rather blow it up winning than keep it together losing.

finish date set for project 1... march 2018

I know bugger all about welding but I have welded stainless with a MIG and regular mig wire. I do use pure Argon though.

yep useing ms3x and will be doing efi once i get my self sorted but the carb will get me going
was thinking i could make the intake in such a way that it can be used later for efi by adding the injector bungs and swapping to a tb

id have to find a way to get things cut, shaped, marked and held in place being alu i dont have a gas welder

can u get glassless stainless wire hahah? or use ss bends and mild welds?

Yes, avoid the "large" bore LCBs for 1380s or race engines.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

If you need to start off with a carb, then you could just use the standard inlet manifold whilst you make the efi long runner inlet.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

On 22nd Jan, 2014 apbellamy said:
Why not? New liner in the MIG, stainless wire and a small cylinder (carefully worded for Rod S ) of pure Argon and you are away.

Schrödinger's cat - so which one am I ???