Laxin's Turbo Build

[Sleepervr-4]

from what i have heard, a certain person with a turbo sohc 5spd 7G, beat an auto evo swapped 8G.

8) ftw she won the last race we ran about 2 weeks ago

[Joaltava]

the only real issue witht he gs is the stock timming map.

it has a knock sensor for timming advance, but the advance is based on n/a timing.

typically n/a is going to get a great deal more timing advance under load, with good fuel.

if you want a sure fire way to keep knock at bay, and still run a crapload of boost,

water injection, is a cheap, and effective way to suppress predetonation.

the mist from water injection will cool your post intercooler charge temps dramatically, this will let you run more boost on pump gas w/o knock.
side effect of water injection...
the vapor literally scrubs your intkae manifold, you pistons, you would never believe how clean an enigne with h2o spray is on the insides. even a 200k+ mile engine will look brand new upon dissasembly.


aside from that, with a little caution, research, and a skillful tune...
you coudl have one sweet ass setup.

its all in the tune though,
slowboy was doing some turbo trials last year, basically giving you a dyno readout for every turbo they coudl come up with, on the same motor.
what was the motor?
a 2.1l destroker... with 10:1 compression
they were running turbo's to 30 psi with it.

so don't be skuuuuurd 8)

damn dude you know how to make a man cry, i love what you just said, now i know that the sky is the limit with my GS, i have so much to learn to remotely get anywhere near the amount of knowledge you have on the 7g's and turbo set ups. Thank you for that huge boost of confidence you just have just given to any person that has a 7g and wants to boost it.

One last question?

What turbo should i start out with, a 16g evo 16g 14b or something bigger?

[kolio]

14b can be found for under $100 and can boost up to like 20 psi

16g's are a little more expensive but boost more, and they have bigger lag time.( not that much slower than a 14b)

on the dohc 64 you can even go evo 16G, thats how beastly it is!

if you just want to keep cost down, get a 14b, you can change to 16g without modification.

[4g63lover]

i plan on boosting my sohc with a 14b and 10lbs of boost. these engines are sooooooooo cheap around here, even if i blow it i will learn and fix it cheap

one of my other projects is a 6 bolt!


from what i have heard, a certain person with a turbo sohc 5spd 7G, beat an auto evo swapped 8G.

A 4G64 DOHC will own so many cars, it's not funny.

you talking about sleeper and spicy?

[seth98esT]

14b can be found for under $100 and can boost up to like 20 psi

16g's are a little more expensive but boost more, and they have bigger lag time.( not that much slower than a 14b)

on the dohc 64 you can even go evo 16G, thats how beastly it is!

if you just want to keep cost down, get a 14b, you can change to 16g without modification.

I think your confused. Evo3 16g isnt a big turbo by any means :P

You could run the biggest turbo in the world on a stock SOHC 7g, it just wouldnt be efficient and you probably couldnt spool it at all. Its not the size of the turbo that the motor is limitted to, its all in the tune, how much boost you run, and fuel.

[da1085]

every time the turbo subject comes up i learn alot since every time there is something new......

now i was wondering can you run a turbo set up with out having anykind of a/f controler(safc or something)?

also what down pipe can we use(90 gsx pipe?) posibly?

finaly which 3 guages are mandetory(my guess boost, oil presure, a/f ratio)? EGT is kinda pricy is it really needed?

[Sleepervr-4]

now i was wondering can you run a turbo set up with out having anykind of a/f controler(safc or something)?

No because you would never get it to idle with the bigger injectors

also what down pipe can we use(90 gsx pipe?) posibly?

2g gst downpipe is the one we use

finaly which 3 guages are mandetory(my guess boost, oil presure, a/f ratio)? EGT is kinda pricy is it really needed?

vac/boost, egt at minimum. Egt is a must because you don't have a knock sensor so you need something to tell you how the engine is doing. If funds permit get a wideband a/f controller with a guage.

[Sleepervr-4]

i plan on boosting my sohc with a 14b and 10lbs of boost. these engines are sooooooooo cheap around here, even if i blow it i will learn and fix it cheap

one of my other projects is a 6 bolt!


from what i have heard, a certain person with a turbo sohc 5spd 7G, beat an auto evo swapped 8G.

A 4G64 DOHC will own so many cars, it's not funny.

you talking about sleeper and spicy?

He was but she took the win on the last one we ran like 2 weeks ago. btw info travels pretty fast .

[Sleepervr-4]

14b can be found for under $100 and can boost up to like 20 psi

16g's are a little more expensive but boost more, and they have bigger lag time.( not that much slower than a 14b)

on the dohc 64 you can even go evo 16G, thats how beastly it is!

if you just want to keep cost down, get a 14b, you can change to 16g without modification.

They all spool the about same because they have the same turbine housing (TD05) If you want a slower spool you need a (TD06) housing turbo like a 20g

[seth98esT]

Yah, Id run a 30/30 vac/boost gauge and an EGT gauge at minimum. Do not waste your time with a narrowband A/F gauge, only go wideband A/F(Zeitronix, AEM Eugo, ect).

As for no fuel control, you could do it, but it wouldnt be fun or safe, and gains wouldnt be near what they would be if you did have a fuel management system.

If anything, at least get an older SAFC.

[SpicyGalant]

from what i have heard, a certain person with a turbo sohc 5spd 7G, beat an auto evo swapped 8G.

8) ftw she won the last race we ran about 2 weeks ago

i heard that a certain person with an auto evo swapped 8g beat a person with a turbo sohc 5spd 7g, a turbo 6spd maxima 3.5L, and an integra boosted - if u wanna see this auto galevo lose.. come to the race against the blue supra running 40psi... at an expressway near u

[SpicyGalant]

i plan on boosting my sohc with a 14b and 10lbs of boost. these engines are sooooooooo cheap around here, even if i blow it i will learn and fix it cheap

one of my other projects is a 6 bolt!


from what i have heard, a certain person with a turbo sohc 5spd 7G, beat an auto evo swapped 8G.

A 4G64 DOHC will own so many cars, it's not funny.

you talking about sleeper and spicy?

He was but she took the win on the last one we ran like 2 weeks ago. btw info travels pretty fast .

yea my first run - i had a slipping tranny and about 10psi... who runs 10psi on an evo motor
someone challenged me.. i said no - but said alright.. lets see how i do now and how i do after i do minor tranny work... sleeper got me

2 weeks later... lets go 'one more again'.. tranny fixed... boost turned up a little - maybe it wasn't tuned right cuz after 3 wins.. the 4th run had me breaking up under boost due to fouled out plugs - nevertheless... i got it -

i need to still get some tranny work done.. that way i can run the boost of wat an evo motor should be running or more... but in time.. im not tryna break anything just yet..lol

we already discussed... videos will be taken - that way tgc can view fellow members on the road rather than in pictures.. i like the idea..what do y'all think

[laxinwarrior]

i plan on boosting my sohc with a 14b and 10lbs of boost. these engines are sooooooooo cheap around here, even if i blow it i will learn and fix it cheap

one of my other projects is a 6 bolt!


from what i have heard, a certain person with a turbo sohc 5spd 7G, beat an auto evo swapped 8G.

A 4G64 DOHC will own so many cars, it's not funny.

you talking about sleeper and spicy?

He was but she took the win on the last one we ran like 2 weeks ago. btw info travels pretty fast .

yea my first run - i had a slipping tranny and about 10psi... who runs 10psi on an evo motor
someone challenged me.. i said no - but said alright.. lets see how i do now and how i do after i do minor tranny work... sleeper got me

2 weeks later... lets go 'one more again'.. tranny fixed... boost turned up a little - maybe it wasn't tuned right cuz after 3 wins.. the 4th run had me breaking up under boost due to fouled out plugs - nevertheless... i got it -

i need to still get some tranny work done.. that way i can run the boost of wat an evo motor should be running or more... but in time.. im not tryna break anything just yet..lol

we already discussed... videos will be taken - that way tgc can view fellow members on the road rather than in pictures.. i like the idea..what do y'all think

Pics are decent, vids would be nice ... but I think you should come pick me up and give me a ride so I can feel the beast 8) (actually that applies to anyone with a turbo galant.) :P

[bronxbombr]

Well i should be boosted in a few weeks so i guess you will see it first hand.

[jkupp2000]

turbo!!!!

[laxinwarrior]

^^ Stop post whoring my thread. :evil:

... Anyway, i've decided that I will be going turbo. Now I just want to see what all I am forgetting in my list of items needed to have the swap go smoothly.
I already have the manifold, o2 housing, fmic, 450cc injectors, gm maft, adjustable fpr, wideband o2 sensor, and all necessary gauges. I am in the process of getting a turbo so i'm not worried about that.
I know that I will need all new gaskets, oil and water lines, custom IC piping and a custom downpipe along with either a 2g oil pan or drilling my stock one. Is there anything else that I am overlooking?
Input would be greatly appreciated especially from those of you that have turboed your g's already.

[phizzalot]

Well I haven't turboed yet, but Some things you may want to consider is using a 2g eclipse turbo downpipe. That will fit with a turbo setup from a stock eclipse.

Didn't see what type of engine mgmt you were using but don't forget about that like safc2, maf t, etc.

good luck on your turbo build otherwise...

[bmxmike]

On the oil i belive you can run a sandwhich adapter if you wish....Another thing is if you dont want to sit with your car buy a turbo timer....Will make the turbo last a little longer....Caking oil is a bitch!....It looks like you pretty much got it down....And you may want to get either a bigger fuel pump or do the pump rewire....Just to make sure you have the fuel you need....Good luck!

[laxinwarrior]

Good looking out, I forgot to mention that I already rewired the fuel pump. Thanks for the quick responses.

[Crim]

I know it has been a couple of days, but I have two quick questions. One, could you use the knock sensor off of an eclipse, and two, did someone already make a list or could someone make a list of the necessary parts for an sohc turbo build? Thanks