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Author Topic: New Guy.  (Read 52117 times)

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Offline Grey

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Re: New Guy.
« Reply #60 on: May 12, 2013, 20:51:15 PM »

Awesome indeed  ;D

Quote
900nm here i come!

Holly crap  ;D   soon to be followed with a new gearbox the way you guys drive lol!




Guess the internal will say stop before the Getrag 265, but we will see... Maybe next step will be to put in tougher stuffs and run even higher boost. With forged pistons and H-beam rods there should be no problems to run over 700BHP and 1000nm in this engine. Lets start with going 900nm and take it from there...

Offline T4T

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Re: New Guy.
« Reply #61 on: May 12, 2013, 21:18:33 PM »
Grey , do you skogen guys have problems with big end bearings ?

What oil do you run to keep things good ?

Matt

Offline Grey

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Re: New Guy.
« Reply #62 on: May 12, 2013, 22:35:36 PM »
Grey , do you skogen guys have problems with big end bearings ?

What oil do you run to keep things good ?

Matt

Yepp, after some abuse they don't like it. Theory of it is that the 2.9er have a long stroke which make the turn a bit heavier for the big ends. Best tip is to check the big end after a season.

Try to run some type of racing 15-40 oil. Me myself like Amalie or Redline, but some of the guys run Statoil Racing oil.

Offline Grey

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Re: New Guy.
« Reply #63 on: May 13, 2013, 09:24:36 AM »
I got some questions about the Getrag 265 and how i fit it to the 29er.
Well, here is the way: Re-weld it! :)


Nothing is easy, but if you have got the right contact or tools you will get this conversion done easy and cheap.

I'll also throw in a pic of the whole 535BHP package.  :mellow:

Offline revhead

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Re: New Guy.
« Reply #64 on: May 13, 2013, 15:06:41 PM »
I think that's a 260/6 (E34)
They have the the fins on the bottom which a 260/5 doesn't (stronger 265 gearset too)

Offline Grey

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Re: New Guy.
« Reply #65 on: May 13, 2013, 22:19:50 PM »
I think that's a 260/6 (E34)
They have the the fins on the bottom which a 260/5 doesn't (stronger 265 gearset too)

Yepp, that is correct. Thought the name was 265, but it is the 260/6 from a 535, the M30 big block BMW engine.

Offline TimoXr4i

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Re: New Guy.
« Reply #66 on: May 15, 2013, 16:03:34 PM »
Ive seen theyre 3 part boxes and 1 part boxes, what did you use? Ive got a t9 v6 bellhouse witch i might fit. What clutch did you use? And hoe is the input axle done? Also, if i use a box like this, how is it done with the driveshaft and such? And the speedo? Does the gearstick is roughly on the same place as on a mt75?  Seen the single part boxes for 50 euros...

Offline Grey

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Re: New Guy.
« Reply #67 on: May 15, 2013, 19:53:15 PM »
Ive seen theyre 3 part boxes and 1 part boxes, what did you use? Ive got a t9 v6 bellhouse witch i might fit. What clutch did you use? And hoe is the input axle done? Also, if i use a box like this, how is it done with the driveshaft and such? And the speedo? Does the gearstick is roughly on the same place as on a mt75?  Seen the single part boxes for 50 euros...

Haha, many questions. :blink:
I have used a MT75 V6 bellhouse.
Sachs 765 pressure plate with 6-pucks sinter (It's a clutch from hell if you do not use hydraulic, really heavy to hold.
It's a distance so it lines up with the spigot bearing.
I have used a Scorpio prop shaft and pressured it together with a BMW prop. You could weld it if you cannot get a hydraulic company to pressure it for you (very rare to pressure it, have not heard of anyone than we that does that but it works great for over 750bhp.
Speedo is no no, I'm about to install a digital external speedo. Gearstick is shortened, and you have to make a special mount for it in the back, but as you can see the stick is correct now. 

Offline TimoXr4i

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Re: New Guy.
« Reply #68 on: May 15, 2013, 20:42:04 PM »
I dont want a sinter clutch, its in our racer, and non hydrolic, lucky we have a rolling start...

You just welded a mt75 v6 bellhouse to a 3 part getrag box? Ive seen adapter plates for fitting it to an opel manta or such, so i can make one for a t9 bellhouse i think.

Ill think i better stick to a mt75 v6 box, fits very good with a sierra dohc prop and such...

Offline Grey

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Re: New Guy.
« Reply #69 on: May 15, 2013, 20:58:14 PM »
I dont want a sinter clutch, its in our racer, and non hydrolic, lucky we have a rolling start...

You just welded a mt75 v6 bellhouse to a 3 part getrag box? Ive seen adapter plates for fitting it to an opel manta or such, so i can make one for a t9 bellhouse i think.

Ill think i better stick to a mt75 v6 box, fits very good with a sierra dohc prop and such...

The MT75 will do for 600nm or 400bhp, but above that the third gear will break. It will not work for me since i got to much power. Preferable i should have got a ZF M3 or diesel version but the gear ratio is very off so the getrag is much better in my case. It does not have an adapter, but as you can see it is welded at the right size.

Offline revhead

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Re: New Guy.
« Reply #70 on: May 15, 2013, 22:49:55 PM »
If you can find a 265/6.1, 6.12 or 6.45 from an E12 M535i or early 635csi or even an early seven this is an overdrive box, with a removable bellhousing and it has a speedo drive on the box.  Probably easier to make an adaptor plate with these. But I think all european E12 M535i were dogleg boxes.
The 260 and the 280 are integral bellhousings.
I have seen the Getrag 420G (from the later six speed E34 M5 and also later M3's) behind a 900bhp motor.
I had a mint S38 B38 and 420G for a bmw project but stupidly sold them  :-[
Bought another S38 B38 cheap but it was f**cked  :'(

Offline Grey

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Re: New Guy.
« Reply #71 on: June 12, 2013, 21:35:00 PM »
I got a bunch of really big turbos, so i could not keep my hands of the granny. It's just a test, not for real. Would be nice with 1000hp+ in a 29er though.   :wacko:




If I put in better pistons and rods I will try out what the 29er limits are.

Offline TimoXr4i

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Re: New Guy.
« Reply #72 on: June 12, 2013, 21:38:40 PM »
Can you tell me how the y piece is made just in front of the throttle bodie? Im planning to make my own, but as short as possible, but im not a metal fabricator, im an electrician... Could make it from copper pipe soldering it with silver.... But wont be as pretty as glassbead blasted metal!

Offline Grey

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Re: New Guy.
« Reply #73 on: June 13, 2013, 10:08:46 AM »
Can you tell me how the y piece is made just in front of the throttle bodie? Im planning to make my own, but as short as possible, but im not a metal fabricator, im an electrician... Could make it from copper pipe soldering it with silver.... But wont be as pretty as glassbead blasted metal!

Just buy a 2x2" - 1x2.5" Y-pipe. It will not be as nice as the one i got but it will save you the time and effort to make your own.

Like on this image:

Offline Dave

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Re: New Guy.
« Reply #74 on: June 16, 2013, 22:19:10 PM »
Quote
It's just a test, not for real. Would be nice with 1000hp+ in a 29er though.

 ;D

lol & your just the man to do it!

Seriously the heads won't be able to flow that I am sure, no matter how much boost you ram down the inlets!
Dave

Offline Grey

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Re: New Guy.
« Reply #75 on: June 17, 2013, 07:23:30 AM »
Quote
It's just a test, not for real. Would be nice with 1000hp+ in a 29er though.

 ;D

lol & your just the man to do it!

Seriously the heads won't be able to flow that I am sure, no matter how much boost you ram down the inlets!

Haha, we might see that one day.
Will have to make some other reinforcements first so ill start with the smaller one and see if the 29er can hold up for 500whp and 900nm.  :mellow:

Offline TimoXr4i

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Re: New Guy.
« Reply #76 on: June 17, 2013, 20:35:26 PM »
Can you tell me how the y piece is made just in front of the throttle bodie? Im planning to make my own, but as short as possible, but im not a metal fabricator, im an electrician... Could make it from copper pipe soldering it with silver.... But wont be as pretty as glassbead blasted metal!

Just buy a 2x2" - 1x2.5" Y-pipe. It will not be as nice as the one i got but it will save you the time and effort to make your own.

Like on this image:


Ill see what i van get, maybe i fabricate a part a bit smoother than the y piece you show, found some nice alloy tubing at work, i can use that, and ill find someone who can weld it to ;D

Offline sierra3dr

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Re: New Guy.
« Reply #77 on: July 11, 2013, 22:04:59 PM »
good grief!!! It took me ages reading through all that ;D  Very impressive results.  I spend more time at work to fund my (comparing your projects) 'small' project ;D  I have been using static comp ratio formula to reduce the CR. In turn,I've had the pistons machined to create a 13.27cc to lower CR.  I've now learnt that using the static formula does not give a true compression as one of the the valves is open.  All valves will be closed when the piston crown sits 59mm down the cylinder from the deck height.  This is were dynamic formula comes in,I get 8.13:1 with standard parts,i.e pistons etc
Please correct me if I'm wrong

Offline Dave

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Re: New Guy.
« Reply #78 on: July 11, 2013, 23:11:06 PM »

It's as complicated as you want to make it.

Don't get too concerned with compression.

Reducing static compression for turbo use is a STD thing to do, you can play about pushing the compression figure higher to chase small gains with the risk of reducing your safety margin & running into all sorts of problems. That's basically the bare bones of it.

You will get varied opinions on it, look at the dyno plots & you will see small gains but nothing exceptional except in mega money builds where loads of things have been custom made.
Dave

Offline Grey

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Re: New Guy.
« Reply #79 on: July 12, 2013, 08:17:05 AM »

It's as complicated as you want to make it.

Don't get too concerned with compression.

Reducing static compression for turbo use is a STD thing to do, you can play about pushing the compression figure higher to chase small gains with the risk of reducing your safety margin & running into all sorts of problems. That's basically the bare bones of it.

You will get varied opinions on it, look at the dyno plots & you will see small gains but nothing exceptional except in mega money builds where loads of things have been custom made.

I agree,
Some say that it does much and some says it doesn't make anything. Difference is in how the rest of the engine is built and what your goals is. If you compare my 9,0:1 engine with Ghengis, you see right away that there is some differences. He probably don't have the right type of turbo setup, but still there is some differences.


Also, the Skogenracing std. engine on 15psi, compared to a Minker or Daves machine on 15psi you also can see that it gives the same power, on the same fuel, but with std heads and cam.


In my opinion it does a positive increase of power, but where you win in power you get lesser reliability.

Offline Grey

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Re: New Guy.
« Reply #80 on: July 12, 2013, 22:19:22 PM »
Ooops.  :rolleyes:


Time to boost up this sucker to the second level!
Lets try with a set of Mahle pistons and see what 10,5:1 in compression ratio can make.  :wacko:

Offline Dave

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Re: New Guy.
« Reply #81 on: July 13, 2013, 10:53:37 AM »
Is that an old picture then Grey or has your Granada engine let go?

I have some testing on a 12V TT with a compression of around 12:1 somewhere vrs same spec but 7.5:1

Think torque was up by 50lbs on 10 psi but HP was the same. (small turbo's)
Dave

Offline Grey

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Re: New Guy.
« Reply #82 on: July 15, 2013, 09:45:50 AM »
Is that an old picture then Grey or has your Granada engine let go?

I have some testing on a 12V TT with a compression of around 12:1 somewhere vrs same spec but 7.5:1

Think torque was up by 50lbs on 10 psi but HP was the same. (small turbo's)

Naah, I just made a checkup on the engine and clearly it was needed. One whole season killed the bearing and I think I know when the piston broke. I was at a fair and I did a lot of launching and one time the engine temperature got high, so probably that was the big thing. Anyways, this was for the good. The std pistons cannot hold forever at this kind of power so I'll try to see what the Cosworth BOB Mahle pistons will be able to handle without changing them.

Offline revhead

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Re: New Guy.
« Reply #83 on: July 17, 2013, 09:56:38 AM »
Is the pent roof chamber in the BOB bigger cc than a late 2.9 12v? I thought with these BOB pistons it would still be 9.5-9.7 in a 12v, the 24v wasn't quite 10:1 stock?

Offline mk2 cossie

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Re: New Guy.
« Reply #84 on: July 17, 2013, 12:50:15 PM »
Grey, I've just realised from the pic of the complete package on the floor that the pipe next to the downpipe is the wastegate pipe!  :mellow:

Must be nice and quiet inside when on full boost then  ;D

Revhead, I dont think Grey is lowering the CR for the 12v. Just going to try the better quality Mahle pistons from a 24v  ;)

Offline Grey

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Re: New Guy.
« Reply #85 on: July 17, 2013, 19:43:59 PM »
Is the pent roof chamber in the BOB bigger cc than a late 2.9 12v? I thought with these BOB pistons it would still be 9.5-9.7 in a 12v, the 24v wasn't quite 10:1 stock?

The BOB got 9,7:1 as standard, the 12v got 9,0:1. The cc is much lesser in the piston bowl but much more in the head chamber. I have the numbers somewhere but when i was calculating it Before, I got around 10,5:1 with BOB pistons on a regular 12v.

Grey, I've just realised from the pic of the complete package on the floor that the pipe next to the downpipe is the wastegate pipe!  :mellow:

Must be nice and quiet inside when on full boost then  ;D

Revhead, I dont think Grey is lowering the CR for the 12v. Just going to try the better quality Mahle pistons from a 24v  ;)

Wastegate screamer pipe helps alot for top end Power, due to the limits in an regular exhaust. It also sounds really good but LOUD!  :wacko:

Correct, I need better pistons and the E85 fuel should help enough to prevent detonation.
Problem is that I have some limits to get above 500whp today, fuel system is one thing. Lets just start with this and see what I can get. I will boost it until something says stop. Maybe it will be the turbo, maybe it will be the fuel system or maybe it will be something else.  :ph34r:

Cheers!

Offline Dave

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Re: New Guy.
« Reply #86 on: July 18, 2013, 23:13:10 PM »

Well the 24V pistons look stronger so fingers crossed for you.  :mellow:

Dave

Offline Grey

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Re: New Guy.
« Reply #87 on: July 23, 2013, 15:42:46 PM »
I got a lead to a turbo 2.9er engine that never have been used. Hopefully it got some real stuff in the bottom end. If so, there will be some major upgrades to my 535 - 29er.

Also i Dynoed a Sierra Pinto turbo yesterday with std cam and cosworth bottom end. At 98 octane and 2.35 bar of boost it gave 357whp @ 5400rpm and 472wnm.
Very good in my eyes when using only a std pinto cam, what do you guys think?

Offline capri v8 driver

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Re: New Guy.
« Reply #88 on: July 23, 2013, 18:47:06 PM »
Quote
At 98 octane and 2.35 bar of boost it gave 357whp @ 5400rpm and 472wnm.
Very good in my eyes when using only a std pinto cam, what do you guys think?

Thats a very good result. The stock pinto cam is pretty good for turbocharging.

greetz Paul.

Capri V8 Driver.

Offline robrs2

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Re: New Guy.
« Reply #89 on: July 23, 2013, 21:07:49 PM »
EFi pinto cam?