BOT (Bolt On Turbo)

[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

 

[virqai]

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[/QUOTE]

Waaah...answer for ur question only ka Pomen GTR....Plz help for me to answer my question also la..
cannot help me meh?... me only know to post Pics...hard to explain lor....ha..ha..

BTW for no 1) cannot get the power pulse in NA first ker before turbine start to spool..?but what RPM the rev cut ho?

 

[iswara204]

pomen gtr, thx bro..more questions arised since td04h is a lil big for 1.5.

1) what about Subaru IHI RHF4 turbo? its going for rm200..hows the price ( im lost track with the price because its been ages).

2) do i need to modify the gsr exhaust manifold allot to fit in the IHI RHF4 turbine? anyone done it before?

---------- Post added at 03:20 PM ---------- 6 hour anti-bump limit - Previous post was at 03:19 PM ----------

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

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

Waaah...answer for ur question only ka Pomen GTR....Plz help for me to answer my question also la..
cannot help me meh?... me only know to post Pics...hard to explain lor....ha..ha..

BTW for no 1) cannot get the power pulse in NA first ker before turbine start to spool..?but what RPM the rev cut ho?[/QUOTE]


Thx for the feed back bro, engine oil cooler adapts the oil from where bro?

 

[^pomen_GTR^]

Waaah...answer for ur question only ka Pomen GTR....Plz help for me to answer my question also la..
cannot help me meh?... me only know to post Pics...hard to explain lor....ha..ha..

BTW for no 1) cannot get the power pulse in NA first ker before turbine start to spool..?but what RPM the rev cut ho?

how to answer? u post picture maybe easier to explain....welding head is a bit extreme mod but sometime a good option for "rare" engine that hard to get parts......

pomen gtr, thx bro..more questions arised since td04h is a lil big for 1.5.

1) what about Subaru IHI RHF4 turbo? its going for rm200..hows the price ( im lost track with the price because its been ages).

2) do i need to modify the gsr exhaust manifold allot to fit in the IHI RHF4 turbine? anyone done it before?
Thx for the feed back bro, engine oil cooler adapts the oil from where bro?

iswara bro.... i'm not really sure about ihi rhf4..perhaps u can ask people in some "turbo" discussion segment......

surelu u need modify the turbo adaptor to suits different turbo....for detail u can ask virqai he knows better than me


oil cooler pipe adapt from oil filter...u can buy plenty of the oil cooler adaptor kit from many brands to suits your car

 

[virqai]

how to answer? u post picture maybe easier to explain....welding head is a bit extreme mod but sometime a good option for "rare" engine that hard to get parts......

Warghh...need a pics gak ker..heee...welding head not extreme mod la,but yes a good option for head max skim and hard to find now like mivec....no complete pics la bro..here old pics that i start to weld the water hole only.this vtec head i'v been weld to add 3mm..But next time mybe can la..at me have 2 head need to weld /swift BOT...now still cuti wife besalin for 2bln already...be mister mama loor...

 

[aarion]

no more update from fellow BOT?

 

[cooljordan]

Any member here using kia forte 2.0 or sport to bot on turbo? what is ur experience mind to share?

 

[RGRaj]

Hi guys,

I'm looking for a used bolt on kit for my Lantis with B6D engine. Don't want to boost kaw2. Just looking a for a little power gain to lighten engine for daily ride & overtaking.

My budget $1500-2000. If anyone selling pls tell me.

 

[sarutobi84]

Bot turbo here.just want to ask the differences between maf sensor after turbo (near tb) or before turbo (near air filter) is better?
Numerous reading leads me to believe pre turbo better due to no heat and pressure or oil can damage the maf sensor.
Im using map sensor also just the maf sensor for partial throttle and idle.need some commment

 

[speed2horizon]

Bot turbo here.just want to ask the differences between maf sensor after turbo (near tb) or before turbo (near air filter) is better?
Numerous reading leads me to believe pre turbo better due to no heat and pressure or oil can damage the maf sensor.
Im using map sensor also just the maf sensor for partial throttle and idle.need some commment

First of all, there are different type of MAF that's designed to be located in a specific location. Old generation mitsu utilized Karman sensor and it'll only work pre turbo when the air flow is still laminar.

Some, uses hot wire but only detects one way flow. Uf reversed flow detected will gila. Example, Nissan maf sensor.

So, one of those maf that is designed to post turbo is GM which detects and reads flow from one side and doesn't react to flow which is flowing at the opposite direction...

But no matters which type you are using, there's always a reason for a design all MAF has their pro and cons

 

[sarutobi84]

My one use hot wire.so I presumed better I put pre turbo.at least no reverse flow can be detected when bov open.

 

[speed2horizon]

My one use hot wire.so I presumed better I put pre turbo.at least no reverse flow can be detected when bov open.

Best is to put it where t's designed to... No presume. GM is also hot wire. But it works perfectly right before TB.

 

[sarutobi84]

But the car originally was designed for na application
Make it simple which one is better for maf sensor location for turbo setup.Point 5 or point 1
Current kit is at point 5.im planning to put at point 1 where most of turbo application maf sensor at.
Any benefit or experience in term of reliability and tuning.

 

[lucankong82]

HI all,
Sorry if I hijack thread..hehe
I'm planninng to BOT for my kelisa EJ-DE engine and use emanage blue for EFI system. Is it possible?
I read emanage blue can't control "close loop" condition but then satri gti is on BOT. So Satri GTi should also have "close loop" condition. In this case if emanage can't control close loop, then my car will run lean with the BOT setup. Correct? Hope you guys can help. Thank you.

 

[^pomen_GTR^]

But the car originally was designed for na application
Make it simple which one is better for maf sensor location for turbo setup.Point 5 or point 1
Current kit is at point 5.im planning to put at point 1 where most of turbo application maf sensor at.
Any benefit or experience in term of reliability and tuning.

point 1 yes many oem (especially mitsubishi) use that location for their MAF....

but got 1 problem for that configuration....

is when u install aftermarket BOV that vented to open air....the engine would stalled/jerking a bit....

 

[ahzai6188]

hi all the sifus, i'm new here. planning to bolt on my 4g92 sohc with a td05-16g turbo from evo2. is it too big for the engine? at how much rpm will i start getting boost? thanksss alot

 

[ColdPlay]

hi all the sifus, i'm new here. planning to bolt on my 4g92 sohc with a td05-16g turbo from evo2. is it too big for the engine? at how much rpm will i start getting boost? thanksss alot

Definite issue on turbo lag. Some more on SOHC engine where it does not match the turbo characteristic. SOHC run well on lower end rpm and the TD05 can tinker around even with with setup at 5k rpm full boost. Why not try something smaller like S256?
Running stock internal, you best bet is boosting below 0.7 bar.
Boost range can be set during tuning. With big turbo, you are looking at 2.5k rpm and above. Smaller
turbine maybe around 1.8k rpm.

 

[ahzai6188]

Definite issue on turbo lag. Some more on SOHC engine where it does not match the turbo characteristic. SOHC run well on lower end rpm and the TD05 can tinker around even with with setup at 5k rpm full boost. Why not try something smaller like S256?
Running stock internal, you best bet is boosting below 0.7 bar.
Boost range can be set during tuning. With big turbo, you are looking at 2.5k rpm and above. Smaller
turbine maybe around 1.8k rpm.

thanks for the reply! i'm looking for td04. found one but the flange is diff, its triangular in shape. my manifold from gsr, flange is rectangular in shape. do i have to get a new manifold or can i custom made the flange to fit in the manifold? thanks again!

yeap, i'm planning to boost around 0.5 only. should be in safe zone. currently servicing the engine like change belt, make sure no leakage..

 

[^pomen_GTR^]

thanks for the reply! i'm looking for td04. found one but the flange is diff, its triangular in shape. my manifold from gsr, flange is rectangular in shape. do i have to get a new manifold or can i custom made the flange to fit in the manifold? thanks again!

yeap, i'm planning to boost around 0.5 only. should be in safe zone. currently servicing the engine like change belt, make sure no leakage..

then u should go for IHI rhf4 which came from smaller snail of subaru twin turbo engine..

IHI RHF 4 turbo L2 L5 L6 L9 - Car Accessories & Parts for sale Selangor - Mudah.my


the smalles ihi rhf4 was vf13 which is for 660cc engine...so my suggestion for 1.6 sohc can opt for vf14,vf18 ,vf20,vf21 to vf25 size....especially auto..need more torque on 2000-4500rpm instead of 3500rpm-6500rpm

 

[ahzai6188]

then u should go for IHI rhf4 which came from smaller snail of subaru twin turbo engine..

IHI RHF 4 turbo L2 L5 L6 L9 - Car Accessories & Parts for sale Selangor - Mudah.my


the smalles ihi rhf4 was vf13 which is for 660cc engine...so my suggestion for 1.6 sohc can opt for vf14,vf18 ,vf20,vf21 to vf25 size....especially auto..need more torque on 2000-4500rpm instead of 3500rpm-6500rpm

alright, i'll try to look for that turbo. but currently i have one td04. is it too lag for my 1.6 engine?

 

[e-jump]

Hi folks
Not sure if i should open a new thread or just ask in here about BOV

Im new to turbo and my ride is currently in BOT project.
Im down to choosing the EWG and BOV.
Apparantly the tauke suggest me to go with imitation for now to test/feel power before upgrading to the real deal BOV anf EWG.

However im still hesitant on the imitation BOV. how bad are these compared to the original ones?
New fake SSQV and RZ are within rm130 while original is like rm800.
Im worried about compressor surge. Are they okay for at least few months run till i decided which original BOV i want to go with?

rgds