4G93T mivec turbo with GT2876

[GeneJoy]

Hi guys,

would like a lil advice here.

I am currently running the above setup with the below supporting mods

- 3 inch electronic sideplant
- sard fuel regulator
- ported and polish head
- 4AGZE pistons
- HKS gasket
- 560cc evo 9 injectors
- Evo 9 fuel pump
- Trust 44mm wastegate
- Microtech LT10s
- HKS EVC-S HKS USA HKS EVC-S Release

Currently running at 1.2 bar but have yet to dyno the figures, any idea what kinda hp am i looking at at that boost level?

Also i am thinking of changing to 800cc FIC injectors and going for a retune to do around 1.5bar. how safe or unsafe is that? and what kind of figures would i be looking at?

Thank you gurus for the advice.


regards

 

[kelvins3281]

I think 560cc is not enough for u...
how bout a 700cc or 800cc...

 

[GeneJoy]

yea after tuning my tuner told me that 1.3 bar not enough fuel already as the injectors maxed out, so only boosting 1.2bar now. the thing is i wanna know roughly how many hp am i doing now at this kinda stats.

and also is it safe for my set up with 800cc injectors to boost 1.5bar after tuning?

regards

 

[jeffy]

Bro I was told supercharger pistons can hold about 2 bar, but I dunno based on what turbo, could be TD04, in your case 2871 is a different league.

For reliability I think u shld confirm and double confirm and triple confirm before pushing it further.
however IF the pistons can hold 2 bar with a TD04, I believe it can also hold for 2871, since TD04 gives a very sudden surge of power when kicking in at low RPM, I believe the stress on the pistons(sudden increase in torque) is lower on hybrid turbo.

But I've nvr been there before so this is only what I feel, best to confirm with the experts.

Regards
Jeff

 

[ehdrian]

320-350bhp i guess..hehe

---------- Post added at 07:37 AM ---------- Previous post was at 07:33 AM ----------

Bro, how much u bought dat latest evc?

 

[kelvins3281]

U mean 1.2bar??
bout 330hp...:hmmmm:

 

[paranoid_android]

using what conrod? gsr? if so, please change it before u up ur boost.. I think 4agze piston can stand 1.5bar but not the stock conrod, time to forged ur internal? .. 850cc good enough for 400-500hp.. most importantly, tuning

 

[GeneJoy]

320-350bhp i guess..hehe

---------- Post added at 07:37 AM ---------- Previous post was at 07:33 AM ----------

Bro, how much u bought dat latest evc?

hi bro,

retailing at $720 sin inclusive install.


regards

---------- Post added at 11:28 AM ---------- Previous post was at 11:24 AM ----------

using what conrod? gsr? if so, please change it before u up ur boost.. I think 4agze piston can stand 1.5bar but not the stock conrod, time to forged ur internal? .. 850cc good enough for 400-500hp.. most importantly, tuning

still using stock pistons. :P


regards

 

[speed2horizon]

Bro I was told supercharger pistons can hold about 2 bar, but I dunno based on what turbo, could be TD04, in your case 2871 is a different league.

For reliability I think u shld confirm and double confirm and triple confirm before pushing it further.
however IF the pistons can hold 2 bar with a TD04, I believe it can also hold for 2871, since TD04 gives a very sudden surge of power when kicking in at low RPM, I believe the stress on the pistons(sudden increase in torque) is lower on hybrid turbo.

But I've nvr been there before so this is only what I feel, best to confirm with the experts.

Regards
Jeff

TOYOTA supercharger induced only 0.8 bars. however, I've seen engines boosting at 1.8bars. But also remember the pistons skirt are cut to be fitted into a 4G93. reduced strength and reduce restriction of side way movements.

hi bro,

retailing at $720 sin inclusive install.


regards

---------- Post added at 11:28 AM ---------- Previous post was at 11:24 AM ----------




still using stock pistons. :P


regards

I thought u said using 4AGZE pistons..?

using what conrod? gsr? if so, please change it before u up ur boost.. I think 4agze piston can stand 1.5bar but not the stock conrod, time to forged ur internal? .. 850cc good enough for 400-500hp.. most importantly, tuning

Yeah. 4G93 conrods are thin...

 

[GeneJoy]

TOYOTA supercharger induced only 0.8 bars. however, I've seen engines boosting at 1.8bars. But also remember the pistons skirt are cut to be fitted into a 4G93. reduced strength and reduce restriction of side way movements.




I thought u said using 4AGZE pistons..?



Yeah. 4G93 conrods are thin...

hi bro,

sorry i meant stock conrods. :)

 

[paranoid_android]

hi bro,

sorry i meant stock conrods. :)

btw, nice engine :wavey:

this is 4g93t terbalik is it? still dont think stock conrod can stand 1.5 bar..

 

[ehdrian]

from the engine bay, it looks like gsr terbalik..

---------- Post added at 12:42 PM ---------- Previous post was at 12:42 PM ----------

the evc-s is quite pricey also leh..

 

[speed2horizon]

btw, nice engine :wavey:

this is 4g93t terbalik is it? still dont think stock conrod can stand 1.5 bar..

Hard to say bro.. My foreman boosted 1.6 bars on stock internals... Seems ok. But rich kaw kaw la... AF reading 10+.. hehe...

Another customer also boosted 1.8 bars on stock internals last time. runs on 50% methanol fuel mixture... But don't know how long it's goona last...

But I've seen broken stock 92T conrods piercing through the cylinder wall... So... It's purely based on luck. But if u wanna eliminate the luck effect, then go for forgies... or at least a modded CA18 rods

 

[paranoid_android]

Hard to say bro.. My foreman boosted 1.6 bars on stock internals... Seems ok. But rich kaw kaw la... AF reading 10+.. hehe...

Another customer also boosted 1.8 bars on stock internals last time. runs on 50% methanol fuel mixture... But don't know how long it's goona last...

But I've seen broken stock 92T conrods piercing through the cylinder wall... So... It's purely based on luck. But if u wanna eliminate the luck effect, then go for forgies... or at least a modded CA18 rods

yeah, many have done that I agree, but how long its gonna last? the reliability is the issues..

 

[GeneJoy]

btw, nice engine :wavey:

this is 4g93t terbalik is it? still dont think stock conrod can stand 1.5 bar..

hi bro,

yea this is the terbalik version meant for the waja. :) LOL i know of a 4g93t mivec turbo with T04E turbo running 1.8 bar with stock connies, but i don't dare to try so high. LOL


regards