How to modify a diesel engine???

Psycho · 17th August 2005, 15:30

You can turbocharge any engine provided you have a mechanism available to provide more fuel under boost... hence in a diesels case change the pump pressure in reference to the boost. In cases of injected engines you will have to remap the chip's or use a tool like Pete's (this is only for crdi engines).

Gurkha · 20th August 2005, 16:02

Turbo diesels need plenty of cool air, so a RAM air intake from the front of the grille is a better idea than stock factory air box setup, also a bigger air filter goes a long way, the other factor is that turbo diesels already are well muffled due to the turbo vanes taking off most of the exhaust boom, so bypassing the muffler gives you HP and mpg gain. The best benefit to all this is that your engine runs cooler as well, almost 10c improvement in most cases.

CRDI engines develop more power but at the cost of reduced engine and pump life due to the extremely high pressure environment, also for the newer reduced pollution CRDI engines, the ring land area has been pushed right to the top and thereby far more stress and lube issues.

To turbo charge a normal diesel engine, lower end stress and EGT is two of the bigges issues, ideally, turbo diesels need enhanced cooling of the pistons so oil squirters are must, also sodium filled exhaust valves are a must for the normal than hotter exhaust, the oil pressure as well as cooling system too has to be enhanced to accomodate the extra heat and lastly, a 10-15% extra fuel is needed from the IP with a boost apparatus for the pump.

raja_ys · 23rd September 2005, 10:29

its interesting to know about turbo engines better than crdi, so do u think i make a right decision to purchase turbo diesel scorpio instead of the crde scorpio

BUSA · 24th September 2005, 12:14

Quote:

Originally Posted by raja_ys

its interesting to know about turbo engines better than crdi, so do u think i make a right decision to purchase turbo diesel scorpio instead of the crde scorpio

Nah the CRDe scorpio is more FE slightly and faster by 3 whole secs to 100! More drivable, better torque! What else do you want!

Quote:

(this is only for crdi engines).

If i am not mistaken its available for a Endeavour

GTO · 24th September 2005, 12:36

Quote:

Nah the CRDe scorpio is more FE slightly and faster by 3 whole secs to 100! More drivable, better torque! What else do you want!

But its still Mahindra tinkering with new technologies. An insider at a Mahindra workshop strongly recommends the regular Scorpio over the CRDe

GTO

Gurkha · 24th September 2005, 15:53

GTO,

Good point, remember, the original Scorpio engine is the modded Peugeot XUD series engine by AVL, CRDI technology deals with very high injection pressure compared to IDI and even DI. I would wait for the CRDe to accumulate 60,000 hard driven miles before passing any kind of judgement on it.

WILDTHING · 24th January 2007, 03:07

hey all,
I understand that petrol cars have spark plugs to ignite the fuel but what about the diesel cars? How does the fuel get ignited in this can any one help.

Cheers.

khanak · 24th January 2007, 17:27

Quote:

Originally Posted by WILDTHING

hey all,
I understand that petrol cars have spark plugs to ignite the fuel but what about the diesel cars? How does the fuel get ignited in this can any one help.

Cheers.

In a diesel engine the fuel gets ignited by compressing the fuel

Read more about it here.

Diesel engine - Wikipedia, the free encyclopedia

nikhilv12 · 25th January 2007, 10:59

Quote:

Originally Posted by khanak

In a diesel engine the fuel gets ignited by compressing the fuel

it is not the fuel that is compressed, it is the air entering the engine, that is compressed. the air is compressed to a very high pressure, and rusults in a very high temperature, then diesel fuel is injected into the cylinder, in the form of a very fine mist, and due to high temperature, it explodes.

nikhilv12 · 25th January 2007, 11:06

and can anyone tell me, what can i do to my exhaust? i guess putting a free flow mufler, will make a lot of noise, i hav a normally aspirater diesel indica...

Akshay1234 · 6th February 2007, 22:49

can anyone tell me how i can get more power out of a diesel innova. theres no petes box available and there was some other tuning box but that cost 46k with no power or top speed increase only torque.

nikhilv12 · 13th February 2007, 10:03

there is a petes tuning box for inova... check out their website.... other stuff that can help are better air filters and a free flow exhaust....

carlover98 · 13th February 2007, 14:14

Hi RTech,
How can the powerchip increase the power? I heard it gives wrong signals to the ECU and increases the output. Will it not damage the ECU and reduce mileage?

Akshay1234 · 16th February 2007, 16:28

Quote:

Originally Posted by nikhilv12

there is a petes tuning box for inova... check out their website.... other stuff that can help are better air filters and a free flow exhaust....

the petes box is not available for the innova.. i will probably put in an air filter. but wont the free flow be very loud?

nikhilv12 · 18th February 2007, 21:09

Quote:

Originally Posted by akshay1234

the petes box is not available for the innova.. i will probably put in an air filter. but wont the free flow be very loud?

check this out...

Pete's

it will be louder not not very loud.....

17th August 2005, 15:30	#46
Psycho Senior - BHPian Join Date: Jul 2004 Location: Bangalore Posts: 1,043 Thanked: 110 Times View My Garage	You can turbocharge any engine provided you have a mechanism available to provide more fuel under boost... hence in a diesels case change the pump pressure in reference to the boost. In cases of injected engines you will have to remap the chip's or use a tool like Pete's (this is only for crdi engines).
	() Thanks

20th August 2005, 16:02	#47
Gurkha BANNED Join Date: Aug 2005 Location: Kalyani, West Bengal Posts: 444 Thanked: 10 Times	Turbo diesels need plenty of cool air, so a RAM air intake from the front of the grille is a better idea than stock factory air box setup, also a bigger air filter goes a long way, the other factor is that turbo diesels already are well muffled due to the turbo vanes taking off most of the exhaust boom, so bypassing the muffler gives you HP and mpg gain. The best benefit to all this is that your engine runs cooler as well, almost 10c improvement in most cases. CRDI engines develop more power but at the cost of reduced engine and pump life due to the extremely high pressure environment, also for the newer reduced pollution CRDI engines, the ring land area has been pushed right to the top and thereby far more stress and lube issues. To turbo charge a normal diesel engine, lower end stress and EGT is two of the bigges issues, ideally, turbo diesels need enhanced cooling of the pistons so oil squirters are must, also sodium filled exhaust valves are a must for the normal than hotter exhaust, the oil pressure as well as cooling system too has to be enhanced to accomodate the extra heat and lastly, a 10-15% extra fuel is needed from the IP with a boost apparatus for the pump. Last edited by Gurkha : 20th August 2005 at 16:06. Reason: addenda
	() Thanks

23rd September 2005, 10:29	#48
raja_ys BHPian Join Date: Aug 2005 Location: Delhi Posts: 177 Thanked: 226 Times	its interesting to know about turbo engines better than crdi, so do u think i make a right decision to purchase turbo diesel scorpio instead of the crde scorpio
	() Thanks

24th September 2005, 15:53	#51
Gurkha BANNED Join Date: Aug 2005 Location: Kalyani, West Bengal Posts: 444 Thanked: 10 Times	GTO, Good point, remember, the original Scorpio engine is the modded Peugeot XUD series engine by AVL, CRDI technology deals with very high injection pressure compared to IDI and even DI. I would wait for the CRDe to accumulate 60,000 hard driven miles before passing any kind of judgement on it.
	() Thanks

24th January 2007, 03:07	#52
WILDTHING BANNED Join Date: Dec 2004 Location: MUMBAI Posts: 77 Thanked: 0 Times View My Garage	How diesel ignites in a diesel engine. hey all, I understand that petrol cars have spark plugs to ignite the fuel but what about the diesel cars? How does the fuel get ignited in this can any one help. Cheers.
	() Thanks

25th January 2007, 11:06	#55
nikhilv12 BHPian Join Date: Jan 2007 Location: trivandrum Posts: 273 Thanked: 9 Times View My Garage	and can anyone tell me, what can i do to my exhaust? i guess putting a free flow mufler, will make a lot of noise, i hav a normally aspirater diesel indica...
	() Thanks

6th February 2007, 22:49	#56
Akshay1234 Team-BHP Support Join Date: Dec 2006 Location: Mumbai Posts: 10,265 Thanked: 12,317 Times	can anyone tell me how i can get more power out of a diesel innova. theres no petes box available and there was some other tuning box but that cost 46k with no power or top speed increase only torque.
	() Thanks

13th February 2007, 10:03	#57
nikhilv12 BHPian Join Date: Jan 2007 Location: trivandrum Posts: 273 Thanked: 9 Times View My Garage	there is a petes tuning box for inova... check out their website.... other stuff that can help are better air filters and a free flow exhaust....
	() Thanks

13th February 2007, 14:14	#58
carlover98 BHPian Join Date: Jan 2007 Location: Trivandrum Posts: 78 Thanked: 2 Times	More Power for Diesel cars Hi RTech, How can the powerchip increase the power? I heard it gives wrong signals to the ECU and increases the output. Will it not damage the ECU and reduce mileage?
	() Thanks