BOT (Bolt On Turbo)

[Jac83]

please use the correct google :)
nah a calculator for u , RC Fuel Injection
300BHP , 4 injectors , 0.60 BSFC , even if we set max duty cycle , 43.5psi fuel pressure ,
we would need atleast a 476cc/min injector

Alrite my bad, I was using the bsfc for na instead of turbocharge but again depend on the application. U don't go right on to 300bhp in low boost application, do u? Perhaps in your 'definition' yes but definitely not in mine. As for high boost application heck why no? U can even go for 1000cc pending the horsies u are going to have. To each their own. If I did in a way or 2 'offend' some of our mates here, pls forgive me.

Edit: we are on the same page anyway. Sharing is caring.

 

[speed2horizon]

Alrite my bad, I was using the bsfc for na instead of turbocharge but again depend on the application. U don't go right on to 300bhp in low boost application, do u? Perhaps in your 'definition' yes but definitely not in mine. As for high boost application heck why no? U can even go for 1000cc pending the horsies u are going to have. To each their own. If I did in a way or 2 'offend' some of our mates here, pls forgive me.

Edit: we are on the same page anyway. Sharing is caring.

Do you know what happened if you are running at 100% duty cycle..? Haha!!

And by the way... Define Low boost... Please...

 

[Jac83]

Do you know what happened if you are running at 100% duty cycle..? Haha!!

And by the way... Define Low boost... Please...

0.7 bar and below. Anything else?

 

[speed2horizon]

0.7 bar and below. Anything else?

Ok... Here is how it goes...

1) high boost/low boost does not have a benchmark. It purely depends on individual set. U can boost 0.5bar on a TD 05 and still achieve higher HP than a. 0.9bar TD04. U have to always include the effective cfm of the turbo(compressor). Of course it still goes back to wether or not the exhaust from ye engine are able to drive the bigger turbo. So, it is possible to run 300WHP on a 0.5bar GT35 provided the exhaust are sufficient o drive the turbine... Says me....

2) when the injector duty cycle goes beyond 80%, there are tendency of the injector got overheated and shuts down completely. And just FYI, the highest WHP I've achieved running a 450cc injectors at 90% duty cycle is only 243WHP. Whatever u google, u still need to include the consideration of the fuel choice. There is possibility that a 450cc can achieve 300WHP if u run ten with av gas or race fuel pf
Course. But I've always been sticking to pump fuel for discussion sake unless mentioned.

JM2CPOV.... :) have a nice day.

 

[thilaksharma]

unless.... the dyno was done on a Dastek dyno at RSi or JB

 

[Speeder]

Hey all,

Good day.

Want to ask got anyone use RHF5 BOT at 4G15? There are some question to get advise:-
1) enough space to put this turbine or not?
2) will facing turbo lag or not?
3) got any modification needed if use this turbine?

Hope you all can give your comment, thanks.

 

[zentasuken]

hello guys , mind share kia forte theta-II cvvt gearbox Bolt on turbo ???
any shop recomment ?

 

[langsuyrx]

my.. ooo.. my.. this thread have gone a very long way.... more BOT on da road nowadays...

 

[din]

yes.. long time ago they say "aku gerenty enjin ko tak tahan lama". and now many people bolt on turbo

 

[speed2horizon]

It's because of the old player succeeded walking through the hard way and didn't give up. Now we have more reference to make a success set up.

 

[langsuyrx]

It's because of the old player succeeded walking through the hard way and didn't give up. (yesss... many $$$ involved..) Now we have more reference to make a success set up.

no new skool without the ol'skool...

 

[iswara204]

Hi Guys, i followed this thread long long time ago and somehow i got busy with things and i just didnt follow through with the project neither the thread. Today, i came across a turbo kit deal. I got disturbed again. I have some basic knowledge of the do's n dont ( left over from the previous readings from the thread), but before the deal goes off my hand or even me jumping the gun to buy it, i would like to consult and get your ideas, because finding or reading back from earlier pages is gonna take long. Please assist guys, thanks allot for taking the trouble to read on this. Here you go:

My objective:
To add a turbo kit to my standard engine without changing its internal( piston,crank and the list goes on). Im fully aware that i would like to run it on low boost.

Current engine: 4g91 (stock)
Car: Iswara

The deal:
1) Tdo4H turbo
2) ecu & wiring gsr
3) standard gsr exhaust manifold
4) intake manifold (gsr/na : unknown, but does it matter?)
5) injectors
6) tbody
7) air flow sensor
8) stainless steel piping, but fabricated to wira engine bay ( Do you think i can somehow, cut here and there to use it or i gotta fabricate a new one?)

My doubts( Besides the one above)
a) Do i need a piggyback to get this running?
a.1) i believe the standard boost is 0.8, how do i reduce it?
a.2) what is the safe boost?

b) do i need to change metal casket? if yes, whats the mm?

c) do i need to change my radiator? will temperature be an issue?

I cant think of any right now...i will add on if i come across any,

And im getting the deal for RM1800 without installation. Please advise is it expensive or worth going for it?

Thank you so much guys...

---------- Post added at 05:35 PM ---------- 6 hour anti-bump limit - Previous post was at 05:28 PM ----------

A stock bot here currently running 0.7bar with stock fuel pump and without fuel regulator plus gsr 390cc injectors. Full boost can achieve about 180whp. If u are planning on running low boost then Gsr injectors are more than sufficient. Bigger cc injectors are only if u are planning on high boost with forged internal of course.

bro, do we need a fuel regulator im planning to run on low boost with standard na pistons and internal?
what about the fuel pump?

 

[^pomen_GTR^]

cheap...and looks like u can get em...


but...

1)tdo4h probably a bit bigger to suits small 1.5 engine...(maybe u can sell and buy td02 or vf21 as replacement)

2)need metal headgasket to lower compression...best would be 1.5mm-2mm

3)need piggyback to tune at the very best..(with gsr ecu/wiring set the engine can run good) but worry if slight lean or slight rich with stock ecu...

4)manual boost controller to keep low boost

5)piping maybe 60% can use back....

 

[Jac83]

I'm still running bot with stock fuel pump and internals and without any fuel regulator. U can check during tuning on whether your stock fuel pump can produce enough fuel during full boost and whether the fuel pressure fluctuates much to dictate to change and/or to add a fuel regulator.

 

[nadziad]

I'm still running bot with stock fuel pump and internals and without any fuel regulator. U can check during tuning on whether your stock fuel pump can produce enough fuel during full boost and whether the fuel pressure fluctuates much to dictate to change and/or to add a fuel regulator.

for how long do using these bot?....did u run high speed often?.....i am planning to do bot but i am liking to run in high speed in the highway....some says if u do bot cannot run high speed often..help me please

 

[Jac83]

Been using it for more than six months now, so far so good. Mostly city use but do outstation once in a blue moon so continuous high speed for a few hours is not a problem. Just make sure u upgrade the cooling system and get your tunings rite. There is no such thing as cannot run high speed often with bot.

 

[virqai]

cheap...and looks like u can get em...


but...

1)tdo4h probably a bit bigger to suits small 1.5 engine...(maybe u can sell and buy td02 or vf21 as replacement)

2)need metal headgasket to lower compression...best would be 1.5mm-2mm

3)need piggyback to tune at the very best..(with gsr ecu/wiring set the engine can run good) but worry if slight lean or slight rich with stock ecu...

4)manual boost controller to keep low boost

5)piping may be 60% can use back....

For no 2) i'm prefer to weld head surface with filler to get low comp,and sure can add how many thicknes that i want...for gasket use normal thick still ok...

 

[^pomen_GTR^]

for how long do using these bot?....did u run high speed often?.....i am planning to do bot but i am liking to run in high speed in the highway....some says if u do bot cannot run high speed often..help me please

just make sure radiator size,intercooler size(*including position) and oil cooler size can support the cooling needed at high speed...

 

[iswara204]

cheap...and looks like u can get em...


but...

1)tdo4h probably a bit bigger to suits small 1.5 engine...(maybe u can sell and buy td02 or vf21 as replacement)

2)need metal headgasket to lower compression...best would be 1.5mm-2mm

3)need piggyback to tune at the very best..(with gsr ecu/wiring set the engine can run good) but worry if slight lean or slight rich with stock ecu...

4)manual boost controller to keep low boost

5)piping maybe 60% can use back....

Thx for your feedback bro.

1) lets assume i may wanna upgrade my engine later, probably a years time, 1.5 to 1.8. What is the downside of using tdo4h(bigger turbo) in 1.5? Turbo lag? if yes, what can i do to counter it?

2) meaning to say, the compression need to be on a lower side. But can a N/A piston's handle a lower compression?

3) whats the cheapest piggyback i can go for? if i dont use any piggyback at the moment, whats the downside of running lean?

4) advisable low boost?

---------- Post added at 09:55 AM ---------- 6 hour anti-bump limit - Previous post was at 09:53 AM ----------

For no 2) i'm prefer to weld head surface with 4047 filler gred to get low comp,and sure can add how many thicknes that i want...for gasket use normal thick still ok...

never heard about it before bro. Care to detail it for me?

---------- Post added at 10:02 AM ---------- 6 hour anti-bump limit - Previous post was at 09:55 AM ----------

just make sure radiator size,intercooler size(*including position) and oil cooler size can support the cooling needed at high speed...

Whats the best radiator size you would go for? evo 123?
intercooler? and preferred size?
can a manual g/box be fitted with a oil cooler?

 

[^pomen_GTR^]

Thx for your feedback bro.

1) lets assume i may wanna upgrade my engine later, probably a years time, 1.5 to 1.8. What is the downside of using tdo4h(bigger turbo) in 1.5? Turbo lag? if yes, what can i do to counter it?

2) meaning to say, the compression need to be on a lower side. But can a N/A piston's handle a lower compression?

3) whats the cheapest piggyback i can go for? if i dont use any piggyback at the moment, whats the downside of running lean?

4) advisable low boost?

---------- Post added at 09:55 AM ---------- 6 hour anti-bump limit - Previous post was at 09:53 AM ----------



never heard about it before bro. Care to detail it for me?

---------- Post added at 10:02 AM ---------- 6 hour anti-bump limit - Previous post was at 09:55 AM ----------



Whats the best radiator size you would go for? evo 123?
intercooler? and preferred size?
can a manual g/box be fitted with a oil cooler?

1) yes turbo lagging...can use but don't expect respond at low rpm fast2 like n/a (can use smaller turbo as mentioned earlier (need custom a bit the turbo manifold)

2)

---------- Post added at 01:16 PM ---------- 6 hour anti-bump limit - Previous post was at 01:12 PM ----------

Thx for your feedback bro.

1) lets assume i may wanna upgrade my engine later, probably a years time, 1.5 to 1.8. What is the downside of using tdo4h(bigger turbo) in 1.5? Turbo lag? if yes, what can i do to counter it?

2) meaning to say, the compression need to be on a lower side. But can a N/A piston's handle a lower compression?

3) whats the cheapest piggyback i can go for? if i dont use any piggyback at the moment, whats the downside of running lean?

4) advisable low boost?

---------- Post added at 09:55 AM ---------- 6 hour anti-bump limit - Previous post was at 09:53 AM ----------



never heard about it before bro. Care to detail it for me?

---------- Post added at 10:02 AM ---------- 6 hour anti-bump limit - Previous post was at 09:55 AM ----------



Whats the best radiator size you would go for? evo 123?
intercooler? and preferred size?
can a manual g/box be fitted with a oil cooler?

1) yes turbo lagging...can use but don't expect respond at low rpm fast2 like n/a (can use smaller turbo as mentioned earlier (need custom a bit the turbo manifold)

2) atleast for 0.5bar max boost still ok i assume (with proper ignition+fuel tuning)

3) i think greddy e-manage can get around 1k

4) *refer no.2


-evo3 radiator would be perfect choice

-manual box doesn't need oil cooler (atleast for normal use unlike le-mans24hour race)

-but definately engine oil cooler was needed