turbocharging the lanos 8v engine questions

[Rodd1s]

thought i'd start a thread to ask questions about the whole turbo conversion process so that it's all in one place for future reference etc - these are mainly questions that have either not been answered elsewhere or ones that cannot be found for various reasons.

first of all... the intake air temp sensor just before the throttle body - what can be done about that to remount it in a boost pipe? or is the rubber tubing it is attached safe for up to 0.5 bar boost pressure?

hypothetically speaking, up to what pressure can be run (relatively safely & temporarily) without changing anything as far as the fuel pressure regulator, injectors and MAP sensor goes?

taking into consideration the 1349cc engine has a compression ratio of 9.5:1, what is the maximum amount of boost that can be run without changing internals?

more questions to come later. cheers guys!

[daewoomofo]

well i dont think you can safely run any boost with out bigger injectors and some other bits. thats all the info i have, sorry

[Rodd1s]

well i dont think you can safely run any boost with out bigger injectors and some other bits. thats all the info i have, sorry

every little bit helps...

another thing, the oil sandwich plate... where do i go about looking for one that will fit a13sm/a15sms engine? i'd imagine i could use one from say an astra or corsa as they tend to have similar oil filters/oil filter fittings.

[MMamdouh]

stock MAP will foul under boost... gotta get some check valves for your MAP or get a 3 BAR MAP

i have seen 12 PSI turbo nubira but that had the T20SED engine with 9.5:1 comp. ratio and it was tuned with an SMT7... it was said that 6 to 7 PSI is the safe boost you can run with stock internals... the internals will survive the 12 PSI but you will be on a knife edge... if something goes wrong... damage will occur.

MMamdouh

[Rodd1s]

...

another thing, the oil sandwich plate...

found it! ordered one today. M18x1.5 thread/fitment. it comes with a blanking plug so i can connect a single oil line to it.

can anyone provide a bit more info about the check valves for the MAP sensor and which line they connect to.

cheers

[Nubira2.2]

In terms of wow much can an engine handle is said in terms of HP
Boost is relative

8psi from a T25 is not the same as 8psi from a T4

I don't know for certain how much HP can the stock 1.5 engine handle
But i'm sure if you do your math with some safe tuning you can go around 160whp on stock internals maybe more
but i guess the stock head gasket would give problems

For safe tuning i mean AFR in the low 11 and timing advance around 15-18

I used the stock MAP and it gave no problems, if the ECU don't see 4.8-5.0 volts from the MAP it wont go in limp mode or give problems
when adding bigger injectors a tuning with AFC you back down the signal, so it wont see the high voltage from the MAP when in boost

The IAT i just putted a side

Stock injectors wont handle more than 4psi in a turbo reasonably sized for the engine

For oil feed line to the turbo just put a T on the oil pressure sending unit and run a line to the turbo
If your turbo requires less pressure put a restrictor

[Rodd1s]

...

I used the stock MAP and it gave no problems, if the ECU don't see 4.8-5.0 volts from the MAP it wont go in limp mode or give problems
when adding bigger injectors a tuning with AFC you back down the signal, so it wont see the high voltage from the MAP when in boost

The IAT i just putted a side

Stock injectors wont handle more than 4psi in a turbo reasonably sized for the engine

For oil feed line to the turbo just put a T on the oil pressure sending unit and run a line to the turbo
If your turbo requires less pressure put a restrictor

so u've still got the original map sensor in place without any check valve as such and the car runs fine?

and is ur iat sensor just hanging in the engine bay?

[Nubira2.2]

so u've still got the original map sensor in place without any check valve as such and the car runs fine?

and is ur iat sensor just hanging in the engine bay?

Currently I don't have the Woo
But i had it turbocharged for more than a year and didn't used any checkvalves
Checkvalves are more commonly used when using FMU and no Air and Fuel controllers

For the IAT question, Yes

[MMamdouh]

Tango fouled his MAP sensor when he turboed his racer... i am sure the map on nubira2.2's car is different in shape and design (you got the sensor that bolts right on the manifold) while we (1.5 SOHC guys) got the MAP that is mounted on the firewall... i m not sure if that difference extends to how much the sensor can stand... i remember we didn't use any check valves on the 2.0 turbo nubira and it was running 10 PSI

the racer engine got comp. ratio of 8.5:1 and i remember some one here was making some serious power from a turbo racer due to them low comp pistons... if you can get those and put them on your engine then it will allow you to go high on boost

MMamdouh

[daewoomofo]

ubuyau has a nice 1.5 turbo
http://www.daewootech.com/forum/viewtop ... =15&t=2755

and nexia182 is in the 12's on the quarter mile with his 1.5
http://www.daewootech.com/forum/viewtop ... =2&t=10612

[Rodd1s]

ubuyau has a nice 1.5 turbo
http://www.daewootech.com/forum/viewtop ... =15&t=2755

and nexia182 is in the 12's on the quarter mile with his 1.5
http://www.daewootech.com/forum/viewtop ... =2&t=10612

ive read thru both of those several times, but they dnt have all the little/minor details.

[Rodd1s]

would this work as the downpipe: http://cgi.ebay.co.uk/FLEXI-FLEXIBLE-EX ... 7C294%3A50

but obviously having the ends welded and not just clamped. the turbocharger unit i've got already has the elbow/bend from the hot side that connects to the downpipe, but i dont have the down pipe. so i need to make my own... would this flexi exhaust pipe work? or would i be better of using plain steel piping?

ive seen this stuff used to easily connect aftermarket exhaust backboxes, so i'm not too sure about what kinda heat it can handle.

[Rodd1s]

...and also, would these injectors fit the 8v engine: http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... 0332280107

[MMamdouh]

...and also, would these injectors fit the 8v engine: http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... 0332280107

yes they would... i got the 150cc version of those on my car

MMamdouh

[Rodd1s]

...and also, would these injectors fit the 8v engine: http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... 0332280107

yes they would... i got the 150cc version of those on my car

MMamdouh

good stuff... next question, would 180cc be overkill? keep in mind the low levels of boost that will be run ie: 5psi.