82mm Mahle Piston ??

[speed2horizon]

Ok ! Understand now !! :wavey:
Now this T25 turbo..after 6k rpm out of breath !! I think that T28 turbo can rev to 7.3k rpm
Thanks !! Teh tarik is waiting for you !!

Ifi'm not mistaken, T25 is slighty smaller than td04. Alot of Saab user converted fom t25 to td04. Meaning to say, u'll feel a little laggy on low end, but ball bearing helps to spool a little faster. But u'llbe smiling in the top end...

 

[veilsideboyz]

Ifi'm not mistaken, T25 is slighty smaller than td04. Alot of Saab user converted fom t25 to td04. Meaning to say, u'll feel a little laggy on low end, but ball bearing helps to spool a little faster. But u'llbe smiling in the top end...

I think this garrett t25 same size with Td04.....yup...not bad in top end
But it just spool only 6k rpm....... I still need to rev above 6k rpm.....have to kick the :LIFT"... This turbo good for gsr and those 6k rpm revter only..... hope this T28 bring me to 7.8k..... :rolleyes:

 

[speed2horizon]

Gsr is not 6k taiko... In fact the new ones are more expensive than t25.
Normally gsr guys Up the rev until 9k. U can see at musc. Urs is vvti or vvtli?
If u play with the wrong gsr, u'll get smoked brother.

T25 is good for 1.3-1.5. If auto ppl use it for 1.6-2.0. Gsr td04l already better than T25.

 

[veilsideboyz]

Oic...nvm I will change the T25 soon
btw..mine is vvtli... Hmm...becoz i saw some putra or proton gti , they always rev to 6k then shift gear...

 

[speed2horizon]

Oic...nvm I will change the T25 soon
btw..mine is vvtli... Hmm...becoz i saw some putra or proton gti , they always rev to 6k then shift gear...

Lolz... All the gars that I know having above 300+Hp. Hehe...

Btw, when ur vvtli activates, it not only increase ur lift. It also change ur cam duration and valve timing. Aka highcam shift.

If u want really high horses, kill ur vvtli, go for low compression forged internals, plunk in gt30 and change to standalone brain. And 1000cc injectors. 400hp? Maybe more... Hehe.

 

[veilsideboyz]

Lolz... All the gars that I know having above 300+Hp. Hehe...

Btw, when ur vvtli activates, it not only increase ur lift. It also change ur cam duration and valve timing. Aka highcam shift.

If u want really high horses, kill ur vvtli, go for low compression forged internals, plunk in gt30 and change to standalone brain. And 1000cc injectors. 400hp? Maybe more... Hehe.

Yup!! You are such a expert bro!! :wavey: Hmm..but my target only 230-240whp enough...Becoz If above 300whp...is really HARD to drive at street racing..any idea ?? Maybe I can use a wiseco piston 10.5 and get GT2871R with boost 10-14psi can get 230whp already ??:wavey::wavey::wavey:

 

[speed2horizon]

Yup!! You are such a expert bro!! :wavey: Hmm..but my target only 230-240whp enough...Becoz If above 300whp...is really HARD to drive at street racing..any idea ?? Maybe I can use a wiseco piston 10.5 and get GT2871R with boost 10-14psi can get 230whp already ??:wavey::wavey::wavey:

U'll detonate ur engine by the time the boost reaches 10psi. Then, u'll damage ur turbine as well. Spending 8-10k just to damage ur engine..? I teach u a simpler way, take a oil filter relocation adapter(rm200 for JASMA), join the 2 hose 2gather, open ur oil filler cap, and put a spoon or 2 of sand(FOC) into the oil filler opening. Guaranty satisfaction, guaranty bursting ur engine within seconds. Lolz...

Get a 9.0:1 pistons. U'll never go wrong. u'll lose a little power on ur first gear till ard 3krpm. Then the rest of ur gearshift will feel good. So, no point remaining ur Na power, u won't even feel it nor realize it.

Insisit of 10.5:1? up to u. Afterall, it's ur engine. Not ours. We're just sharing I Infomation.

 

[veilsideboyz]

U'll detonate ur engine by the time the boost reaches 10psi. Then, u'll damage ur turbine as well. Spending 8-10k just to damage ur engine..? I teach u a simpler way, take a oil filter relocation adapter(rm200 for JASMA), join the 2 hose 2gather, open ur oil filler cap, and put a spoon or 2 of sand(FOC) into the oil filler opening. Guaranty satisfaction, guaranty bursting ur engine within seconds. Lolz...

Get a 9.0:1 pistons. U'll never go wrong. u'll lose a little power on ur first gear till ard 3krpm. Then the rest of ur gearshift will feel good. So, no point remaining ur Na power, u won't even feel it nor realize it.

Insisit of 10.5:1? up to u. Afterall, it's ur engine. Not ours. We're just sharing I Infomation.

Oic ! You mean from 1st gear 1k to 3k lose power...then above 3k...the power will come? Hmm..how about If 2nd gear and 3rd gear ? The turbo power still have right ?? Oh ya..bro..if use GT28RS with 9.1cr still ok ? coz this GT28RS spool early & faster..hope can help me 2.5k start spool up ....
and after that my car still can wheel spin ?? becoz my car is an auto... now my car can wheel spin...scare after change to 9.1..wheel spin hilang...

 

[speed2horizon]

Oic ! You mean from 1st gear 1k to 3k lose power...then above 3k...the power will come? Hmm..how about If 2nd gear and 3rd gear ? The turbo power still have right ?? Oh ya..bro..if use GT28RS with 9.1cr still ok ? coz this GT28RS spool early & faster..hope can help me 2.5k start spool up ....
and after that my car still can wheel spin ?? becoz my car is an auto... now my car can wheel spin...scare after change to 9.1..wheel spin hilang...

Gt28rs doesn't really help much in spoiling earlier. It does help in more intake due to the compressor housing with a bigger trim. So, higher boost also feels good. Compare to the normal gt2860. Wheel spin, use alstar tyre lo, sure can spin de..

Honestly speaking, Looks like u're not looking for power. U're more towards showing to others what u have. This things i can't really help u taiko...

 

[veilsideboyz]

Gt28rs doesn't really help much in spoiling earlier. It does help in more intake due to the compressor housing with a bigger trim. So, higher boost also feels good. Compare to the normal gt2860. Wheel spin, use alstar tyre lo, sure can spin de..

Honestly speaking, Looks like u're not looking for power. U're more towards showing to others what u have. This things i can't really help u taiko...

Haha...I'm looking for power around 240-260whp ...wheel spin only for extra need only :D
bro... you say must kill my vvtli ?? drop a low piston and get a big turbo ??
Hmm... I dont want kill my vvtli ler... that why i wanna get a mid compression :D...

 

[speed2horizon]

Haha...I'm looking for power around 240-260whp ...wheel spin only for extra need only :D
bro... you say must kill my vvtli ?? drop a low piston and get a big turbo ??
Hmm... I dont want kill my vvtli ler... that why i wanna get a mid compression :D...

That's for 400hp. Not urs cause that's not important for u. Get a 9.0:1 cr pistons. Back to driving fundamental... When u start playing on street, say at 100kmh, 4th gear would be ard 2-3krpm. Once ur rpm up to 3krpm, turbo kicks in, ur engine wil be force induced. U will never need ur na anymore.

At 2nd gear, when ur turbo kicks in, rev up to 9000rpm, then u shift gear, rpm drops to 6000rpm. Turbo still running. No shift lag. Don't worry.

If u wanna go for high cr, might as well stick to na. 231 engine not very hard to achieve 200+ whp. Why turbocharged? Afterall, u can ask 10ppl, 100ppl, or even 1000ppl, the answer will still be same. Just hope that u be honest when u tune ur car, pls let them know ur cr and ur targetted boost. So that they'll prepare a indeminity document for u to sign before the tuner tunes ur car. That to protect themselves from any liability for bursting ur engine.

Unless u wanna do it like me. Tune it urself. But take ur own risk.

 

[veilsideboyz]

That's for 400hp. Not urs cause that's not important for u. Get a 9.0:1 cr pistons. Back to driving fundamental... When u start playing on street, say at 100kmh, 4th gear would be ard 2-3krpm. Once ur rpm up to 3krpm, turbo kicks in, ur engine wil be force induced. U will never need ur na anymore.

At 2nd gear, when ur turbo kicks in, rev up to 9000rpm, then u shift gear, rpm drops to 6000rpm. Turbo still running. No shift lag. Don't worry.

If u wanna go for high cr, might as well stick to na. 231 engine not very hard to achieve 200+ whp. Why turbocharged? Afterall, u can ask 10ppl, 100ppl, or even 1000ppl, the answer will still be same. Just hope that u be honest when u tune ur car, pls let them know ur cr and ur targetted boost. So that they'll prepare a indeminity document for u to sign before the tuner tunes ur car. That to protect themselves from any liability for bursting ur engine.

Unless u wanna do it like me. Tune it urself. But take ur own risk.

Ok ! I Confirm Understand now !!
Just the 1st gear abit lag to 2-3krpm... but after 3k rpm...will feel the power ~! But... my target of boost just 0.8bar only... is it too low ?? Becoz I really dont wanna above 1 bar...and now I'm just using 440cc fuel injectors ... 440cc can hold around 240whp++ & boost 0.8bar right?? OK...I will change my mind to 8:8.1 and get a GT28RS or GT2871R ..
cheers !!:wavey:

 

[speed2horizon]

Ok ! I Confirm Understand now !!
Just the 1st gear abit lag to 2-3krpm... but after 3k rpm...will feel the power ~! But... my target of boost just 0.8bar only... is it too low ?? Becoz I really dont wanna above 1 bar...and now I'm just using 440cc fuel injectors ... 440cc can hold around 240whp++ & boost 0.8bar right?? OK...I will change my mind to 8:8.1 and get a GT28RS or GT2871R ..
cheers !!:wavey:

240whp..? Don't even need a G28RS/GT2871. Enjoy...

 

[veilsideboyz]

Keke !! Ya... Now I'm use T28 turbo 1st... If can't achieved 240whp..Then only I change to GT28RS...

 

[speed2horizon]

Keke !! Ya... Now I'm use T28 turbo 1st... If can't achieved 240whp..Then only I change to GT28RS...

Install the pistons, turbon wastegate. The boost 1 bar. Ok jor la. But make sure ur gb can take the amount of torque generated from the fi.

 

[veilsideboyz]

Install the pistons, turbon wastegate. The boost 1 bar. Ok jor la. But make sure ur gb can take the amount of torque generated from the fi.

Taiko, Piston I no money buy 1st...Just install turbo & wastegate ....
Next future only change piston... BRo..wanna ask you...8:8.1cr can boost how many bar ?? I saw a lot people boost to 20psi++...... But...not worth for me ler...becoz I just boost 0.8-1bar :rolleyes:

 

[speed2horizon]

Taiko, Piston I no money buy 1st...Just install turbo & wastegate ....
Next future only change piston... BRo..wanna ask you...8:8.1cr can boost how many bar ?? I saw a lot people boost to 20psi++...... But...not worth for me ler...becoz I just boost 0.8-1bar :rolleyes:

same old story. Different turbo would have different output. With a t28, 450cc injectors on a 8.8:1 cr pistons, 14-16psi is safe. With a 500cc injectors, it's safe up to 21psi.

This is only true when u have a good tuner.

---------- Post added at 02:41 PM ---------- 6 hour anti-bump limit - Previous post was at 01:27 PM ----------

Taiko, Piston I no money buy 1st...Just install turbo & wastegate ....
Next future only change piston... BRo..wanna ask you...8:8.1cr can boost how many bar ?? I saw a lot people boost to 20psi++...... But...not worth for me ler...becoz I just boost 0.8-1bar :rolleyes:

same old story. Different turbo would have different output. With a t28, 450cc injectors on a 8.8:1 cr pistons, 14-16psi is safe. With a 500cc injectors, it's safe up to 21psi.

This is only true when u have a good tuner.

 

[chrissyong]

Keke !! Ya... Now I'm use T28 turbo 1st... If can't achieved 240whp..Then only I change to GT28RS...

t28 if u boost 1.3 or 1.4 bar then can get 240whp~

 

[veilsideboyz]

t28 if u boost 1.3 or 1.4 bar then can get 240whp~

S15 spec R get 0.8bar with 220whp .... and Cr is 8:8.1 If not mistaken...
Ok..Thanks !

---------- Post added at 04:06 PM ---------- 6 hour anti-bump limit - Previous post was at 03:51 PM ----------

same old story. Different turbo would have different output. With a t28, 450cc injectors on a 8.8:1 cr pistons, 14-16psi is safe. With a 500cc injectors, it's safe up to 21psi.

This is only true when u have a good tuner.

---------- Post added at 02:41 PM ---------- 6 hour anti-bump limit - Previous post was at 01:27 PM ----------



same old story. Different turbo would have different output. With a t28, 450cc injectors on a 8.8:1 cr pistons, 14-16psi is safe. With a 500cc injectors, it's safe up to 21psi.

This is only true when u have a good tuner.

Ok ! Taiko... boost with GT28RS ....14-16psi safety....But I scare if above 1 bar ler .. Taiko... Do you know that wiseco 10.5cr max boost psi is how many for GT28RS ?

---------- Post added at 04:07 PM ---------- 6 hour anti-bump limit - Previous post was at 04:06 PM ----------

same old story. Different turbo would have different output. With a t28, 450cc injectors on a 8.8:1 cr pistons, 14-16psi is safe. With a 500cc injectors, it's safe up to 21psi.

This is only true when u have a good tuner.

---------- Post added at 02:41 PM ---------- 6 hour anti-bump limit - Previous post was at 01:27 PM ----------



same old story. Different turbo would have different output. With a t28, 450cc injectors on a 8.8:1 cr pistons, 14-16psi is safe. With a 500cc injectors, it's safe up to 21psi.

This is only true when u have a good tuner.

Ok ! Taiko... boost with GT28RS ....14-16psi safety....But I scare if above 1 bar ler .. Taiko... Do you know that wiseco 10.5cr max boost psi is how many for GT28RS ?

 

[ISWARA GT-R]

Just an opinion
Based on your needs, I believe supercharging will be a better choice based on their reputation on good low end power.