4g93T gsr engine rebuild, need advice

[bebolagalas T]

i have a fren running td05 on a 1.6 mirage err no issues and no lag complains so far
i guess the keyword here is TUNE. If i slap in a gt42 without tune i bet it will spool tomorrow.

Gud point bro... Another thing is we want something..we'll lose something

 

[speed2horizon]

i have a fren running td05 on a 1.6 mirage err no issues and no lag complains so far
i guess the keyword here is TUNE. If i slap in a gt42 without tune i bet it will spool tomorrow.

Err... 1.7 hehe...

On emanage... Is that the one??

 

[contreasjun27]

i have a fren running td05 on a 1.6 mirage err no issues and no lag complains so far
i guess the keyword here is TUNE. If i slap in a gt42 without tune i bet it will spool tomorrow.

this is very true though....your friend using standalone for this setup?

 

[speed2horizon]

this is very true though....your friend using standalone for this setup?

On Emanage la....

 

[mojoloon]

Hi

Can I use back the old exhaust manifold and tumbuk a lubang for wastegate? WHy I need to pay few thounsand and customize a new one?

 

[speed2horizon]

Hi

Can I use back the old exhaust manifold and tumbuk a lubang for wastegate? WHy I need to pay few thounsand and customize a new one?

Can... Then u weld a stainless steel pipe for the wastegate... Then the burnt fluxes from the welding rods that is not being able to be removed before thinstallation came off when boosting n flow into the turbine fin n next thing u find is the fins got flatten by the fluxes n leftover welds during the welding process.

There are ways to install a wasgate explained n discussed in the wastegate explained thread... Pls read
http://www.zerotohundred.com/newfor...ydraulic-lifters-for-4g93t-7.html#post4307413

 

[Adeen]

bro s2h....the link brought me to a hydraulic lifter thread la...:D

 

[speed2horizon]

bro s2h....the link brought me to a hydraulic lifter thread la...:D

Oh shit!!! >.<"'

thanks for correcting... I was replying with phone with a 3/4 slept mind and 1/2 slept eyes...

Sorry everyone...

this I the right link:-
http://www.zerotohundred.com/newforums/tech-forced-induction/255450-wastegate-explained.html

 

[contreasjun27]

Hi

Can I use back the old exhaust manifold and tumbuk a lubang for wastegate? WHy I need to pay few thounsand and customize a new one?

now got ready made turbo header with wastegate flange very cheap and very good quality bro

 

[zedkov]

hi all sifu, wanna ask. is the turbine for d 4G93T auto differance from the manual? or just the same? thanks alot for d answer. ;)

 

[mojoloon]

Can... Then u weld a stainless steel pipe for the wastegate... Then the burnt fluxes from the welding rods that is not being able to be removed before thinstallation came off when boosting n flow into the turbine fin n next thing u find is the fins got flatten by the fluxes n leftover welds during the welding process.

There are ways to install a wasgate explained n discussed in the wastegate explained thread... Pls read
http://www.zerotohundred.com/newfor...ydraulic-lifters-for-4g93t-7.html#post4307413

but but,... the customized exhaust manifold doesn't mean that welding won't fly off, right? Somemore it look longer, which same as contribute to turbo lag?

---------- Post added at 08:39 PM ---------- 6 hour anti-bump limit - Previous post was at 08:38 PM ----------

hi all sifu, wanna ask. is the turbine for d 4G93T auto differance from the manual? or just the same? thanks alot for d answer. ;)

AS I know of, 4g93t-RS is twin blade while normal 4g93t is single blade.. Might be wrong info..

---------- Post added at 08:40 PM ---------- 6 hour anti-bump limit - Previous post was at 08:39 PM ----------

now got ready made turbo header with wastegate flange very cheap and very good quality bro

but ready made mostly very nipis compare to original one...

---------- Post added at 08:41 PM ---------- 6 hour anti-bump limit - Previous post was at 08:40 PM ----------

Oh shit!!! >.<"'

thanks for correcting... I was replying with phone with a 3/4 slept mind and 1/2 slept eyes...

Sorry everyone...

this I the right link:-
http://www.zerotohundred.com/newforums/tech-forced-induction/255450-wastegate-explained.html

OMG... I was reading from page 1-7... Now i read this... faint.. I read about this article before, the next question that I asked is.. how big is big turbo, how small is consider as small boost? Sorry I'm kind of digit person.. hardly can stand an open statement..

 

[speed2horizon]

but but,... the customized exhaust manifold doesn't mean that welding won't fly off, right? Somemore it look longer, which same as contribute to turbo lag?

---------- Post added at 08:39 PM ---------- 6 hour anti-bump limit - Previous post was at 08:38 PM ----------



AS I know of, 4g93t-RS is twin blade while normal 4g93t is single blade.. Might be wrong info..

---------- Post added at 08:40 PM ---------- 6 hour anti-bump limit - Previous post was at 08:39 PM ----------



but ready made mostly very nipis compare to original one...

---------- Post added at 08:41 PM ---------- 6 hour anti-bump limit - Previous post was at 08:40 PM ----------




OMG... I was reading from page 1-7... Now i read this... faint.. I read about this article before, the next question that I asked is.. how big is big turbo, how small is consider as small boost? Sorry I'm kind of digit person.. hardly can stand an open statement..

Sorry for the mistake on the wastega thread...

Ok, first answer to your question...

The answer is NO. What I was trying to say is... Whe arc welding, there'll be fluxes that are not cleanable... However, the fluxes will fall off due to the extreme pressure and temperature within the manifold.. When, tubular manifold, those are TIG/ARGON welded. And the melting temperature of stainless steel is 1200ºC. Which will never be ur exhaust temperature...

Long runners also means lag... Yes.. But when u have a well designed with less restriction and all equivalent length runners, there are less turbulence and chances of exhaust from runner 1-4 goes into 2-3. A well designed manifold would create a siphonic effect on the flowing exhaust. Reduced back pressure....

My wastegate is on my manifold too... But I customize a flange and drill a hole on the manifold. Have the welding done along outline of the flange instead of having a pipe welded on the manifold.There's no exposed welding inside the manifold. So, no chances of welding byproduct(fluxes and loose welding) fall into the turbine and harm the fin.

Ok, back to the wastegate question. When u have higher boost, u'll need a smaller wastegate. Anything > 10psi or 70kPa is considered high boost. But most of our ppl on Malaysia will take 38mm even for low boost. THis is due to the price. But afterall, not so much effect on the road...

BIG or small turbo depends much relative to the engine. a TD04L is considered a small turbo for a an engine >1.8L capacity but it's consider big for kancil... It depends on the entire set up to justify wether the turbo is big or small relative to the engine capacity... It;s very hard to justify in numbers sometimes.... For example... How many bowl of rice eat each meal is consider alot. Some ppl takes 3 bowl also say ngam ngam aje,,, Some girls thinks 3 spoon is alot...

Hope my example shows u some rough idea on big and small turbo...

---------- Post added at 11:27 PM ---------- 6 hour anti-bump limit - Previous post was at 11:22 PM ----------

BTW... Even if u get branded tubular manifold from oversea with 3mm thickness Sch 20 stainless steel steampipe, it;s stilll prone to cracks on the welding joins... It's due to the high temperature flow and the force caused by the weight of the turbo...

A very well
known problem.

 

[mojoloon]

Hi
WHat is reground crank?

 

[speed2horizon]

Hi
WHat is reground crank?

Damanged/scratched crankshaft is sent for regrind to repair. After regriding, it's called a reground crankshaft. Have to use oversize bearings.

Example, the crankshaft mount scratched, then will sent for regrind... After regrind, the crank diameter will reduce. But the crank mount on the engine block are same as before, so... Will need to use a correct bearing size for the reground crankshaft.

 

[mojoloon]

Damanged/scratched crankshaft is sent for regrind to repair. After regriding, it's called a reground crankshaft. Have to use oversize bearings.

Example, the crankshaft mount scratched, then will sent for regrind... After regrind, the crank diameter will reduce. But the crank mount on the engine block are same as before, so... Will need to use a correct bearing size for the reground crankshaft.

But I was reading this article at OZ forum.. It seem crank reground can improve performance... I was :o ..

---------- Post added 06-06-2010 at 04:35 AM ---------- 6 hour anti-bump limit - Previous post was 06-05-2010 at 11:35 PM ----------

Is there and con for getting a used cam?

b18c acura integra gsr manifold that I need to get or b18c, b16?