Engine sourcing, Choosing a engine from same model lineup?

[Elfenstar]

  On 2/7/2009 at 8:51 AM, Failali said:

I see.Is it that the VQ35DE is implemented in the 350z,350JM, are interchangeable although the 350JM's powerplant is detuned by about 51 PS.(Does this make any modifications to the total engine block ?)Do the bore and stroke of the engines(VQ35 and VQ23) contribute to the differences of the respective block?

 

With the compression ratio of the 23DE 9:8:1 ,will there be any impact on the ron rating i have to use, with regards to the ECU,as my dad is using Ron 98 for the current engine block, 23DE?

 

How much would an engine swap cost?(referring to the 1JZ to the S13 silvia)

 

I don't know much about the VQ, other than its lighter than its predecessor the VG, however if Nissan hasn't changed their way of doing things, the two different would be due to either tune and/or head-work. R.E. the 23 and 35, the blocks are different. I believe the 23 is smaller, but you will need to check that out. The bore and stroke would affect the decision on the block to use, but only indirectly.

 

In terms of what octane the car should use, your dad should check what the manual says.

 

How much the swap cost??? All up about aud$6k for the swap, and associated works for the swap. Would have been more, but a lot of work was done in my friends garage.

Edited February 7, 2009 by Elfenstar

[Failali]

  On 2/7/2009 at 6:44 PM, Elfenstar said:

I don't know much about the VQ, other than its lighter than its predecessor the VG, however if Nissan hasn't changed their way of doing things, the two different would be due to either tune and/or head-work. R.E. the 23 and 35, the blocks are different. I believe the 23 is smaller, but you will need to check that out. The bore and stroke would affect the decision on the block to use, but only indirectly.

 

In terms of what octane the car should use, your dad should check what the manual says.

 

How much the swap cost??? All up about aud$6k for the swap, and associated works for the swap. Would have been more, but a lot of work was done in my friends garage.

Hi Bro thanks for your advise. I am de-registering the car so whatever legal ramifications that might get in the way should be gone.

 

Is 5w50 fully synthetic oil suitable for the engine when running in the new VQ35 for the break in period? I've heard rumors about revving in 5k to 6k above to seal piston rings when running in. Being a higher displacement engine up from the 2.3lVQ23

 

Not much change on my project though. I just realised the gearbox ive planned to install (Haldex Sequential 6 speed manual) Gen 3 is a AWD gearbox. With the car being a FWD i guess im stuck as there arent much gearboxes to source from:/.I cant go on with the project yet.Its far from finished thanks to the gearbox, suspension, brakes, limited slip differential and weight loss session. All is not lost as i've found the perfect powerplant along with a suitable turbo. Thank goodness.

[Amortifiedpenguin]

  On 4/21/2009 at 2:19 PM, Failali said:

Hi Bro thanks for your advise. I am de-registering the car so whatever legal ramifications that might get in the way should be gone.

 

Is 5w50 fully synthetic oil suitable for the engine when running in the new VQ35 for the break in period? I've heard rumors about revving in 5k to 6k above to seal piston rings when running in. Being a higher displacement engine up from the 2.3lVQ23

 

Not much change on my project though. I just realised the gearbox ive planned to install (Haldex Sequential 6 speed manual) Gen 3 is a AWD gearbox. With the car being a FWD i guess im stuck as there arent much gearboxes to source from:/.I cant go on with the project yet.Its far from finished thanks to the gearbox, suspension, brakes, limited slip differential and weight loss session. All is not lost as i've found the perfect powerplant along with a suitable turbo. Thank goodness.

 

you sir should take your citizenship and throw it down the drain. migrate to a country of your choice and start as a low level or apprentice mech. there is only so much one can learn in school. and there is only so much you can do in singapore. go live your dream. mayb in 10 years time you mayb modding hydrogen or electric engines instead. respect.

[Elfenstar]

  On 4/21/2009 at 2:19 PM, Failali said:

Hi Bro thanks for your advise. I am de-registering the car so whatever legal ramifications that might get in the way should be gone.

 

Is 5w50 fully synthetic oil suitable for the engine when running in the new VQ35 for the break in period? I've heard rumors about revving in 5k to 6k above to seal piston rings when running in. Being a higher displacement engine up from the 2.3lVQ23

 

Not much change on my project though. I just realised the gearbox ive planned to install (Haldex Sequential 6 speed manual) Gen 3 is a AWD gearbox. With the car being a FWD i guess im stuck as there arent much gearboxes to source from:/.I cant go on with the project yet.Its far from finished thanks to the gearbox, suspension, brakes, limited slip differential and weight loss session. All is not lost as i've found the perfect powerplant along with a suitable turbo. Thank goodness.

 

Errm I see one problem (not modification), you either need a scrap certificate or an export notice once you de-register the car.... Don't know how or if you can get around that.

 

I suspect a 50wt oil may be too thick for running in. I have realised one big thing with small capacity engines... their oil galleries are really small and narrow. I would run with a non-friction modified mono-grade 20/30wt running in oil for about 100kms, then run with a mineral 30wt oil till 1000kms. After that i would suggest a 10w30/10w40 oil. Don't forget get a really good filter (like the purolator pure one) for at least the first use, and first oil change. Give Genie a PM to ask his opinion on the oil.

 

Don't worry about your gearbox. I've helped in installing AWD GTR gear boxes into RWD Skylines with some minor modifications. Just make sure your gearbox is front biased. The rest I can't help you with as the A31 Ceffie would be my only platform choice (if I was to modify a Cefiro).

 

Since I have you here.... you really need to forget ITE. Target NUS's auto-engineering degree and make sure you get yourself into the Formula SAE team. Prof Seah is really good, and NUS's latest car is pretty damn impressive.

Edited April 21, 2009 by Elfenstar

[Failali]

  On 4/21/2009 at 3:36 PM, Elfenstar said:

Errm I see one problem (not modification), you either need a scrap certificate or an export notice once you de-register the car.... Don't know how or if you can get around that.

 

I suspect a 50wt oil may be too thick for running in. I have realised one big thing with small capacity engines... their oil galleries are really small and narrow. I would run with a non-friction modified mono-grade 20/30wt running in oil for about 100kms, then run with a mineral 30wt oil till 1000kms. After that i would suggest a 10w30/10w40 oil. Don't forget get a really good filter (like the purolator pure one) for at least the first use, and first oil change. Give Genie a PM to ask his opinion on the oil.

 

Don't worry about your gearbox. I've helped in installing AWD GTR gear boxes into RWD Skylines with some minor modifications. Just make sure your gearbox is front biased. The rest I can't help you with as the A31 Ceffie would be my only platform choice (if I was to modify a Cefiro).

 

Since I have you here.... you really need to forget ITE. Target NUS's auto-engineering degree and make sure you get yourself into the Formula SAE team. Prof Seah is really good, and NUS's latest car is pretty damn impressive.

Sighs. That one i also dunno. Worst come to worst, i just find a Cefiro body, those in SgCarmart and mod it then lorh. By small capacity engines you mean low displacement engines? i kinda am confused why thier oil galleries are small? Is it because of the low engine oil/fuel consumption?i really have alot to learn. Erm, Gearbox front biased as in the torque is mostly directed to the front wheels?.

 

Yeah. Im doing what i can though, study, learn about car parts, go online and check, i guess its not enough But im really exhausted with the amount of work i've put in already. Anymore and i might have to drop something to cope.If sec sch's already this taxing, i shudder for poly and Uni [shocked]

[Elfenstar]

  On 4/25/2009 at 6:46 AM, Failali said:

Sighs. That one i also dunno. Worst come to worst, i just find a Cefiro body, those in SgCarmart and mod it then lorh. By small capacity engines you mean low displacement engines? i kinda am confused why thier oil galleries are small? Is it because of the low engine oil/fuel consumption?i really have alot to learn. Erm, Gearbox front biased as in the torque is mostly directed to the front wheels?.

 

Yeah. Im doing what i can though, study, learn about car parts, go online and check, i guess its not enough But im really exhausted with the amount of work i've put in already. Anymore and i might have to drop something to cope.If sec sch's already this taxing, i shudder for poly and Uni [shocked]

 

Mostly due to the limited size of the engine. So everything needs to be shrunk.

 

Focus on your studies. The car should come second, as the former is more beneficial for you to turn the latter into a lifelong career (if you love it as much as you seem to do).

 

[Tigershark1976]

  On 1/22/2009 at 1:34 PM, Turbonetics said:

swap engine is not legal at all even though same capacity.

so no need to proceed with other questions already.

vehicle will be compounded.

anyway you think its easy to find 350JM engine?stop dreaming.

car fast means fast,slow means slow.

don't think so much about modifying your dad's luxury 230JM.

and we know you only ask for the sake of asking means NATO.

 

 

huh?? since when swapping engine of the same cc is not legal?? dun anyhow say and confuse other people if u r not sure... Its a modification require approval from LTA, just like exhaust mod, transmmision / gearbox change...

 

http://www.onemotoring.com.sg/publish/onem...llowed_lta.html

 

 

[Slowwannabe]

borrow this threat abit..newbe need some advice here..i am driving a 98 hijet van..model s100 660cc..thinking of doin some mod to it to make it more drive-able..what can i do to gain some horse??exhust??air intake??i m totally clueless..drive to workshop uncle tell me don waste his time...haiz...i don need it to be WRX fast..jus another 10-20 horse will do...

Edited April 29, 2009 by Slowwannabe

[Nicholasl]

  On 4/29/2009 at 10:11 AM, Slowwannabe said:

borrow this threat abit..newbe need some advice here..i am driving a 98 hijet van..model s100 660cc..thinking of doin some mod to it to make it more drive-able..what can i do to gain some horse??exhust??air intake??i m totally clueless..drive to workshop uncle tell me don waste his time...haiz...i don need it to be WRX fast..jus another 10-20 horse will do...

 

I agree with the uncle. Don't waste your time. :)

 

Better luck with a performance car or something bigger in displacement. And exhaust & air intake mod doesn't really help for your case and maybe the most u'll gain like 0.05% performance but u sacfirse like 10-20% of ur low end performance. Worth it?

 

Honestly I don't think so.

 

 

[Nicholasl]

And to TS,

 

engine swap is highly illegal.

 

If its legal, I would just buy a C180 and get a 6.3L amg engine and lup into a C class liao. lol.

 

 

[Failali]

  On 4/26/2009 at 9:41 AM, Tigershark1976 said:

huh?? since when swapping engine of the same cc is not legal?? dun anyhow say and confuse other people if u r not sure... Its a modification require approval from LTA, just like exhaust mod, transmmision / gearbox change...

 

http://www.onemotoring.com.sg/publish/onem...llowed_lta.html

 

 

Its legal if your engine piang and need to replace it with the same type of engine with the same CC

 

the one you referring to is the one above.

 

What im going to do is replace the VQ23DE to a higher cc engine(VQ35) That isnt street legal and i will have to de-register the car straight.

[Failali]

  On 4/29/2009 at 10:48 AM, Nicholasl said:

I agree with the uncle. Don't waste your time. :)

 

Better luck with a performance car or something bigger in displacement. And exhaust & air intake mod doesn't really help for your case and maybe the most u'll gain like 0.05% performance but u sacfirse like 10-20% of ur low end performance. Worth it?

 

Honestly I don't think so.

 

This once might apply if i were to use it for daily driving, by which i have to conform to local regulations but nope, this isnt a street legal car that i am planning to modify, as you can see i have planned quite a lot of highly illegal (on the road ) overhaul.But this isnt what i am planning. What you might say of this project is like a total change, from the internals to the externals outwards and they arent street legal.

 

 

[Failali]

  On 4/25/2009 at 3:11 PM, Elfenstar said:

Mostly due to the limited size of the engine. So everything needs to be shrunk.

 

Focus on your studies. The car should come second, as the former is more beneficial for you to turn the latter into a lifelong career (if you love it as much as you seem to do).

 

 

Yeah i sort of divided a 60-40 % percentile of my daily life. 60% for studies and the rest for the project. i see. I wonder if it applies to motorbikes too with V twin engines?

[Thypig33]

My take is that you can maybe start off with a easier more mechanics car instead, like a old starlet or something...

[Elfenstar]

  On 4/30/2009 at 12:49 PM, Failali said:

Yeah i sort of divided a 60-40 % percentile of my daily life. 60% for studies and the rest for the project. i see. I wonder if it applies to motorbikes too with V twin engines?

 

Just make sure you don't neglect your studies k

 

I have never opened a bike engine so i can't help with the latter. Sorry.

 

[Turbonetics]

so which part mentioned it is legal?

same capacity does not mean same engine model.

[Jayq]

After reading all your posts i find that you are very impressive do a lot job on research but these are all the information you can find on internet, magazine. If you are really interested in automobiles for go a diploma in mechanical engineering in poly do well then go NUS i assure you will do well in future. By just depending on car magazines won't work, they are for the hobbyists not for people serious in tuning.

 

FYI, if you are serious about it can read up on otto cycle, diesel cycle and the law of thermodynamics they are available online and free. Forget abt car magazines they are trash use the money for your lunch to power your brain.

[Blitz2003]

Hi Kid,

i am impress. a 16 year old can speak out this amount of knowledge.......

if one has browse thur MCF folders... there are really less knowledgable grownups around.

 

Swopping of Engine is definitely far from the term LEGAL.

 

There are Fit/Jazz, MR-S or LOTUS Elise with Honda K20s, Old School Sunny with SR20DET, Old School Nissan March K11 with SR20DET, Civic EGs with Prelude H22s, AE86 with SR20DET , BMW E36s with RB26DET , BMW E36s with F20C (in Japan ), BMW E46s full M3 conversions ..... the list goes on.

and yes, some of this rides are on our shores itself.

i have heard of Cefiros with SR20DET also.

why not?

 

the full engine transplant of the different engine type, would be more easier if a half cut is purchase, where the axles , drive shafts , gearbox and engine harness can be bring over tog with the ECU.

there are companies who specialise in more popular frankenstein engine swops with ready make engine mounting kits. which means you don even need to change the mounting points of the engine and gear box for the more regular or more popular swops.

Cefiro has got a enormous engine bay, and dropping in the engine should not require a cutting of the firewall or the front crash car itself.

 

at the end of day, it goes back to how deep your pocket is and how reliable and driveable the car is...........

 

try to google or youtube it for conversions. you will be impressed.

 

cheers and all the best to your studies. :)