I am building up the following project: BMW318IS VH41DETT + manual

This will be my last project and I want it to be as perfect as possible. I do not want to live with regrets without building a real project.

I got the engine already and is trying to fit it into the engine bay now.

I need help on the following:

1) the engine oil pan hits the crossmember and power steering
2 ways to solve it, put a spacer at the crossmember or modify the oil pan
please suggest the advantages and disavantage of the 2 method. Personnally, I prefer to lower the crossmember

2) the engine comes with complete stock wire and ECU, it can start already. however, idleing is not stable and seems like some missing sensors, eg water temp cause the engine to run rich.
Is there any good stand alone to recommend? I looking at AEM EMS now. please advise

3) this engine comes in 4wd ? whats the sutff required to make it 4wd? and where can I get it? is it visible to do? please note I am in Thailand and there is no limitation to any modification. The limitation is the driver and its wallet only. keke

4) 6th manual conversion - use T56 with Z32 flywheel and clutch? how about V160 supra 6th spd box. is it possible? has anyone done it?

My future plan will be the following, please chip in your advise. Tell me what I need to be careful or what is better etc, all comments is welcome
1) T3/T4 x 2
2) boost 0.7-1 bar on stock engine CR10.5
3) high bost 1.5bar with CR8.5 forged pistons if the stock can't handle 0.7-1bar of boost
4) nitrous - small amount
5) T56 manual or V160 manual
6) Z32 twin plate with fly wheel
7) AEM EMS
8) 720cc injectors
9) bosch external fuel pump x 2
10) LSD
11) brakes upgrade
12) intercooler
13) maybe CO2 cooler kit - heard the alu head can't restand heat well.

Thank you.

Regards
Derrick

Modified by doctorchee at 10:13 PM 6/7/2006

Modified by doctorchee at 10:22 PM 6/7/2006

Modified by doctorchee at 10:24 PM 6/7/2006

Attachment: oilpanseatingoncrossmember.jpg (82043 bytes, downloaded 5183 times)

Also, the stock ECU is 32 bit and very powerful... if you purchase a pocket romulator, pocket programmer, and a couple of chips, you'll have all you need to write your own mapping for every aspect of the engine management, at 1/4 the cost of an inferior aftermarket ECU.

modify oil pan

or

modify and lower the cross member??

thanks

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Thanks a lot. sorry if you don't mind, this will be the first time I will set up ECU myself.

As such, please give me more details how to go about for it.
1) what is pocket romulator? how much and where to buy?
2) what is pocket programmer? how much and where to buy?
3) a couple of chips? what chips? how much and where to buy?
4) functions of DIY ecu? fuel mapping, ignition mapping, traaction control? launch control? nos control ? staged injectors control?

Sorry for all the question. Just need help,

Thanks again

Regards
Derrick

Q45tech might know the answer to this.

Regardless you can get Mettler's VH41 flywheel, make your adapter plate and go from there...

To be honest with you, you really need to take it one step at a time. Get your stuff running in the car with the trans with a little bit of boost, and then go from there..

Its possible your idling problem is due to the injectors... Just check the ECU codes.

There wasnt any AWD VH41 I dont think... I dont remember if the J. Ferie was AWD or not, but I dont think it was... You might be better off finding an ATTESA system from a skyline and making it work on your project...

Mettler is right, you can control about anything you need with the ECU as far as engine management... However if your doing so many things with nitrous and all that crap you may want to spend big bucks on an aftermarket... Its hard to say, but it sounds liek you need to control a lot of things and itd be hard to make the stock ECU do it... Its POSSIBLE to make the ECU do it, but its harder..

If you were just running some boost with bigger injectors, for SURE id still use the factory ECU...

I think your engine should handle the boost you want but plan on getting bigger injectors... the NISMO 555cc/min injectors should be fine...

as far as the oil pan, id modify the oil pan personally.. its only got 6 quarts and its made for street driving... Oil starvation on a high HP car running through cones is a concern!!! Either go with a high capacity rear sump or a dry sump.

Need a Nissan/Infiniti Mechanic around Indy OR Northern Indiana?? EMAIL ME!!!

And check here for a good summary with pics on the process of modifying the factory ECU:

http://forums.skylinesdownunde...age=2

Quote »

2) the engine comes with complete stock wire and ECU, it can start already. however, idleing is not stable and seems like some missing sensors, eg water temp cause the engine to run rich. Is there any good stand alone to recommend? I looking at AEM EMS now. please advise

once again ... as wes said. check injectors. AEM has alot of support in USA i believe ... however there are cheaper alternatives available. Microtech, Autronic, etc

Quote »

3) this engine comes in 4wd ? whats the sutff required to make it 4wd? and where can I get it? is it visible to do? please note I am in Thailand and there is no limitation to any modification. The limitation is the driver and its wallet only. keke

I've heard the rumour they came in 4wd. dont waste your time

Quote »

My future plan will be the following, please chip in your advise. Tell me what I need to be careful or what is better etc, all comments is welcome 1) T3/T4 x 2

well x1 normally makes 300-320 rwhp on an FJ20 or SR20 so this would be a good choice. And relatively cheap

Quote »

2) boost 0.7-1 bar on stock engine CR10.5

check intake closing angle for VH41 and then see if you will be able to get away with 1 bar (15psi)

I know it doesnt have vvt so closing might be 48 not 68 in which case you might be pushing it. Or just get a nice set of billets or regrinds

Quote »

3) high bost 1.5bar with CR8.5 forged pistons if the stock can't handle 0.7-1bar of boost

as above. check cam profiles first. if you are going to run standard camshafts then possibly run 8.5. if you are not going to get longer duration camshafts keep the compression as is

Quote »

4) nitrous - small amount

you wont need nitrous with 2 turbo's

Quote »

8) 720cc injectors

nismo or sard. go 850 cc injectors.

Just like to check how strong is the Z33 350Z manual transmission?

I have been searching around to get 1 but can't find any yet.

Can you help to indicate me where can I find 1? any estimated price?

I will be doing the adaptor plate in Bangkok. Was quoted very cheap by my mechanic. He has been working in the local Toyota racing team for some years and even attended some short lesson from TRD. He claimed he has done lots or different auto to manual swap.

So hope he can do what he claims. I believe action speaks louder than words.

Thank you so much.

Quote, originally posted by riu »

A Z33 350Z 6 spd transmission should work with an adaptor plate with the VH motor. Q45tech might know the answer to this.

Quote, originally posted by elwesso »

Yeah a Z33 MT would probalby be the way to go... Because you can then (I THINK) use the Z33 MT flywheel which then means you can use a Z33 clutch... Thanks. I should be going into this route. If the gearbox is strong and not too ex. . Can check how much can the Z33 gearbox take? Regardless you can get Mettler's VH41 flywheel, make your adapter plate and go from there... Will see how from getting the box first. U To be honest with you, you really need to take it one step at a time. Get your stuff running in the car with the trans with a little bit of boost, and then go from there.. Yes. I totally agree with you. Getting too many things to work together at 1 time is difficult. Especially when you have problem, you don't know where to start from. Its possible your idling problem is due to the injectors... Just check the ECU codes. Does anyone here have a ECU pinout and ECU codes??? Thanks so much. There wasnt any AWD VH41 I dont think... I dont remember if the J. Ferie was AWD or not, but I dont think it was... You might be better off finding an ATTESA system from a skyline and making it work on your project... To be honest, I am just toying the 4wd idea. But if it is not too difficult and to ex, I will do it. But I don't think any 4wd conversion is easy and cheap http://www.cars-directory.net/...998_9/ Mettler is right, you can control about anything you need with the ECU as far as engine management... However if your doing so many things with nitrous and all that crap you may want to spend big bucks on an aftermarket... Its hard to say, but it sounds liek you need to control a lot of things and itd be hard to make the stock ECU do it... Its POSSIBLE to make the ECU do it, but its harder.. Thanks a lot. I may consider doing the cheaper way. I am not rich. I will be studying and reading up on modify the ECU. If I feel confident, I will do it. If you were just running some boost with bigger injectors, for SURE id still use the factory ECU... ya. I think your engine should handle the boost you want but plan on getting bigger injectors... the NISMO 555cc/min injectors should be fine... Can I check is the side feed injectors same with SR20DET and RB25DET? Direct drop in? as far as the oil pan, id modify the oil pan personally.. its only got 6 quarts and its made for street driving... Oil starvation on a high HP car running through cones is a concern!!! Either go with a high capacity rear sump or a dry sump.

Thanks for the advise. I will look into this.
Can you advise if is it better to custom make a whole new oil pan or modify the exisiting?
Is there any aftermarket avaible? ....(doubt it will have)

Thanks for all the reply.

It makes my project seems so much easier when there is advise and comments.

Thanks again.

im not sure what id do about the pan.. id probably buy a spare one and play around with it..... basically just keep the top part so it bolts to the motor fine with a good seal and then go crazy with the rest... no aftermarket pans available, hoewver maybe you could get lucky and find something that looks similar..

Need a Nissan/Infiniti Mechanic around Indy OR Northern Indiana?? EMAIL ME!!!

I found a year 03-05 350Z manual gearbox. selling at US$300.

Is this the market price? Its looks like very cheap. Should I buy it?

Ya, maybe I will go with doing the oil pan. Is it right to say, just keep the top sealed, and go wild on the bottom?

Is this the correct box we are talking about?

Thanks

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1) Gear Ratio??
2) toruqe it can handle???
3) others info??
4) can mate to a VH41DE with Z32flywheel, Z32 clutch, Z33 gearbox ?

Thank you so much.

As I will be buyin this gearbox I hope to get everything right.

Thank you

Modified by doctorchee at 2:54 AM 6/9/2006

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any coments for the price? 300US is ok? else I will buy today... keke...
Sorry for asking such questions, as I really do not know what is the market price. Else I can decide for myself.

Just being abit anxious to finish the project. U

Thanks for your details reply.

Need a Nissan/Infiniti Mechanic around Indy OR Northern Indiana?? EMAIL ME!!!

thanks for all the advise again. I will update upon any progress..

Do you know what this computer is for?

1) transmission ?
or
2) ABS/ traction control?

Does anyone have a pinout of the VH41 ECU ??

thanks

Regards
Derrick

Modified by doctorchee at 7:25 PM 6/13/2006

Modified by doctorchee at 7:29 PM 6/13/2006

Attachment: Image(311).jpg (89823 bytes, downloaded 3434 times)

Need a Nissan/Infiniti Mechanic around Indy OR Northern Indiana?? EMAIL ME!!!

The stock hardness and ECU is in place when I brought the engine. However, there I did not buy a half cut. As such, some sensors seems to be missing.
In addition, I am thinking of tyring to REmap the ECU using the pocket romulator and pocket programmer. I hope to have all the pinouts so I can wire everything in place.

I do not know if there is anything specifically I need. As I have not have anything to study on the ECU much. Please advise if possible.

I need the following:
1) ECU pinout
2) all the wiring diagrams if possible
3) TCU pinout (transmission ECU)
4) All sensors wiring
5) Traction control pinouts and wiring??

Without your help, I may be lost in wiring.

Thank you so much.

Regards
Derrick

Just some update:

went to workshop today.

My mechanic have tried to lower the crossmember but failed to. Its way to much to lower and by lower the engine, there is no space for the exhaust.

Both of us have tried to think of how to modify the oil pan. But as the air con compressor and power steering pump is all rest on the front of oil pan, it seems a lot of works. And we are afraid that by modify the oil pan, will it cause any problems to the engine. As such, we give up this routh.

So lastly, we decide not to modify anything, but lift the engine higher. We will then cut the bonnect up for the engine part that will stick out of the engine bay. It will be similar with the guy that did the S13 VH41DETT. haha nice job.

OK so much more, I will be ordering the 350Z transmission to mate to the engine also.

Thanks for all the help guys.

Will keep you update,

Regards
Derrick

Help help please forward documents.

thank you thank you.

Stacey Childs, "NicoMom" 1970-2007

Haha its not a beast yet. Its in the making.... trying to gather all the bits required to make it work...

Yes, you are most welcome.

Please let me know your schedule. date you coming and when you leaving.

Please note I will not be in Bangkok from 28/06-1/07 in Phuket and 6-10/7 Singapore.

Above is all my schedule.

Let me know you coming with who and what programs you are looking for. I can be your tour guide. Here have lots of "special service" haha

I can help to arrange hotel booking etc also.

Ok Take care.

Can call me at (66) 097888660

Regards
Derrick

Thank you so much.

Thank you

Thank you

Thank you

Quote, originally posted by riu »

$300 USD seems a little bit cheap for that, but its not cheap enough that would get me worried. (i've bought Z32 Transmissions for $10, from a close friend though) Make sure that it is at the very least a late 2004 transmission and up. If I were you, I'd only look at 2005 to 2006 to be safe. Take your time to find the right parts, a few extra days of searching is better than getting bad parts. Z33 transmissions aren't too hard to find. Good Luck!

Sorry, need to check where else can I look for the late Z33 2005-2006 transmission? or even early Z33 gearbox?

As the gearbox would cost me $300US but the shipping will cost me another $350US. sounds crazy as the shipping cost more than the gearbox.

So I hope if its possible to look at somewhere else.

Thanks

what about junkyards and such down in thailand? or perhaps seeing if you can buy from someone in south east asia, china or NZ or Austrailia, i'm sure shipping would be considerably cheaper if you're buying from around there.

1 - Final gear (6th) is actually a higher ratio than the Z32's. If you're looking for highway fuel economy, the Z32 tranny is better. Also, since you're building a turbo setup... you actually want the wider gear ratios that the Z32 5-speed has. Close gear ratios are good for n/a engines or other engine that have a very narrow torque band. Boosted engines have a very broad torque band and you want to keep it in gear as long as you can (for the most part) to get as much of that torque to the ground as you can.

Wide gear ratios with a low ratio rear end makes for a good forced induction drivetrain. Oddly enough, comparing a high ratio rear end to low (say 4:10 vs. 3.538 respectively) the 4.10 would feel faster when in reality, the 3.538 actually provides faster numbers. The 4.10 would allow you to put more peak torque to the ground but for a short period of time. The 3.538 would put slightly less peak torque to the ground, but puts the torque down over a longer period of time. There's a guy over at HybridZ that's running a rear end in the low 3's (maybe even in the higher 2's) and continually betters his track times.

2 - Not nearly as much as the Z32 5-speed. If the above isn't enough to turn you away, I saw a reply on a thread somewhere where the person had talked to someone from either JWT or Stillen (one of those Nissan places) and they told him that the 350Z tranny wasn't really that good for much over the stock power output.**** But even if the tranny was as strong... going along with above, it wouldn't offer the performance characteristics that the Z32 tranny would be able to.

**** Took me a bit but I finally found the thread. Here's the post I was talking about - http://forums.hybridz.org/show...nt=20

Modified by mtcookson at 2:23 AM 6/16/2006

If you need any large items shipped like engines or even clips, I can help you out. Just go to AssociatedShippers.com and get a quote.
We can even help with moving, check out our moving site at PackPro.com
We mostly work with Roadway Express and Yellow Freight but can also get discounts from other carriers to get the best possible prices we can.

Just in case Mettler hasn't had a chance to get those off to you, here's a '94 ECCS diagram for a VH45DE.

Attachment: 94Q45ECCSWiring.JPG (456748 bytes, downloaded 3591 times)

Mmmm, IMPUL Goodness