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      07-20-2019, 02:25 PM   #89
Samo6556
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Does this 4.6L require sleeving the block?
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      07-20-2019, 02:47 PM   #90
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Quote:
Originally Posted by Samo6556 View Post
Does this 4.6L require sleeving the block?
Definitely NOT sleeved. I would never sleeve an S65.

If 800whp ESS cars run without sleeves I can't see the advantage for a NA build like this

The block was taken to a company that can handle alusil boring and honing

Last edited by SYT_Shadow; 07-21-2019 at 10:49 AM..
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      07-20-2019, 09:21 PM   #91
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roughly, how much does it cost?
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      07-20-2019, 10:24 PM   #92
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Quote:
Originally Posted by Samo6556 View Post
Does this 4.6L require sleeving the block?
I've yet to see a sleeved s65 running. Rear plenty of posts about sleeved blocks being assembled and no finished product.
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      07-21-2019, 11:51 PM   #93
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2011 BMW E92 M3  [0.00]
Quick question:

What bore and stroke did you go with? Do you know what the rotating mass is relative to the factory rotating mass?

This is a really interesting thread. Thank you for sharing!!
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      07-22-2019, 09:33 AM   #94
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Quote:
Originally Posted by Scharbag View Post
Do you know what the rotating mass is relative to the factory rotating mass?
Also would like to know this!
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      07-22-2019, 09:37 AM   #95
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Quote:
Originally Posted by Scharbag View Post
Quick question:

What bore and stroke did you go with? Do you know what the rotating mass is relative to the factory rotating mass?

This is a really interesting thread. Thank you for sharing!!
Quote:
Originally Posted by IamFODI View Post
Also would like to know this!
Sorry guys I don't have that level of details

I recall it's the 4.4 GTS style crank plus boring to get to the 4.6
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      07-22-2019, 10:09 AM   #96
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Quote:
Originally Posted by Scharbag View Post
Quick question:

What bore and stroke did you go with? Do you know what the rotating mass is relative to the factory rotating mass?

This is a really interesting thread. Thank you for sharing!!
Balancing a set of rods this week for an S85 stroker, I'll throw a few OEM rods on to compare end weights.
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      08-05-2019, 05:51 PM   #97
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Hello

I am new here because I need help. I'm a rallycross driver from belgium
And I want to build a s65 v8 4.8 race engine.
Where can I go best for advice and the products.
I need the stroker kit 4.8, dry sump system,
Cams for really much torque and everything that's is need.

Remember it is for a race engine. So I can use fuel what I want and don't need vanos. I can go all the way but only atmospheric.
What are your experiences and relations or contacts,
Where I get the wricht advice and where can I buy what I need?
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      08-05-2019, 06:42 PM   #98
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Quote:
Originally Posted by JohnV View Post
Hello

I am new here because I need help. I'm a rallycross driver from belgium
And I want to build a s65 v8 4.8 race engine.
Where can I go best for advice and the products.
I need the stroker kit 4.8, dry sump system,
Cams for really much torque and everything that's is need.

Remember it is for a race engine. So I can use fuel what I want and don't need vanos. I can go all the way but only atmospheric.
What are your experiences and relations or contacts,
Where I get the wricht advice and where can I buy what I need?
Cool. My parents live in Belgium

I'm not sure how you could build a 4.8L S65. If you use the M3 GTS crank and then bore the block out to the max you end up with a 4.7L engine.

Cams you can go to the same 292 I used or ask Schrick whether they have anything bigger that work without vanos. Looking at my power curves it is clear the engine would be happy with larger cams than 292!

If you can use any fuel then you can bump the compression which will give you some hp as well.

I suggest you google imgmotorsport and get in touch with them.
I recall there's someone that used to be on this forum that developed a dry sump system for the S65
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      08-05-2019, 06:55 PM   #99
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Quote:
Originally Posted by JohnV View Post
Hello

I am new here because I need help. I'm a rallycross driver from belgium
And I want to build a s65 v8 4.8 race engine.
Where can I go best for advice and the products.
I need the stroker kit 4.8, dry sump system,
Cams for really much torque and everything that's is need.

Remember it is for a race engine. So I can use fuel what I want and don't need vanos. I can go all the way but only atmospheric.
What are your experiences and relations or contacts,
Where I get the wricht advice and where can I buy what I need?
Why not KMS Race Engines in Holland?
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      08-06-2019, 04:01 PM   #100
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In Europe you can go with KK Automobile aka Motorsport24.
They are expensive but if you really want an 4.8 S65 they know how to build this.
Due to the higher stroke compared to the 83mm crank you have to do some special work at the block and not just bore it.
If you really want a dry sump the only solution is BMW Motorsport in my opinion. It's around 18k€ for the S65.
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      08-06-2019, 08:22 PM   #101
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Turner is selling a 4.4l racing engine that already has a dry sump. That maybe a good starting point.
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      08-07-2019, 04:46 AM   #102
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Incredible construction, it has to be brutal to feel all that potential of an N / A engine.

Without building a stroker, what could be the limit of the 4.0 S65 engine, without increasing displacement? I would like to maintain the displacement, I¡m thinking of mounting Karbonius admission and I think that next to the exhaust akrapovic evo line and MS pulley kit would be a good combination. The next step would be to include about 292 Schrick cams? Leave the akra catles line? type gt4 ...

Regards
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      08-07-2019, 05:16 AM   #103
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Quote:
Originally Posted by Rochen_00 View Post
Incredible construction, it has to be brutal to feel all that potential of an N / A engine.

Without building a stroker, what could be the limit of the 4.0 S65 engine, without increasing displacement? I would like to maintain the displacement, I¡m thinking of mounting Karbonius admission and I think that next to the exhaust akrapovic evo line and MS pulley kit would be a good combination. The next step would be to include about 292 Schrick cams? Leave the akra catles line? type gt4 ...

Regards
It feels incredible to have so many horses in a NA high specific output engine. The F80 CS is also very fast but feels like it has all the passion of a vacuum cleaner in comparison.

I think a high flow cat or catless exhaust, plus karbonius, plus 292 cams would yield lots of horses.
I've been thinking of adding 292s to my E92 but am not in a huge hurry, one thing at a time.

No one has tried this but the more I look at my dyno graphs the more convinced I am that you need 292s for the stock engine and even bigger cams for strokers.

Last edited by SYT_Shadow; 08-07-2019 at 05:28 AM..
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      08-07-2019, 06:49 AM   #104
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Quote:
Originally Posted by Rochen_00 View Post
Incredible construction, it has to be brutal to feel all that potential of an N / A engine.

Without building a stroker, what could be the limit of the 4.0 S65 engine, without increasing displacement? I would like to maintain the displacement, I¡m thinking of mounting Karbonius admission and I think that next to the exhaust akrapovic evo line and MS pulley kit would be a good combination. The next step would be to include about 292 Schrick cams? Leave the akra catles line? type gt4 ...

Regards
Rear diff ....
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      08-07-2019, 09:07 PM   #105
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Congrats SYT on the build. I’ve got myself a 4.6 stroker and yes its hard to stay tame on the street. The mustang guys hate it and my Stoptech trophy kit makes them shamed when slowing down.

Appreciate you sharing the build. I’ve got 292 cams going in next and VANOS actuators being modded to eliminate interference concern with the added lift and duration. This and 4.10 gears wrap my build. Super stoked you saw strong gains. Let me know if you’re ever in Miami, I’m buying the cuban coffee. Cheers bro!
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      08-07-2019, 11:53 PM   #106
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Quote:
Originally Posted by gte869h View Post
Congrats SYT on the build. I’ve got myself a 4.6 stroker and yes its hard to stay tame on the street. The mustang guys hate it and my Stoptech trophy kit makes them shamed when slowing down.

Appreciate you sharing the build. I’ve got 292 cams going in next and VANOS actuators being modded to eliminate interference concern with the added lift and duration. This and 4.10 gears wrap my build. Super stoked you saw strong gains. Let me know if you’re ever in Miami, I’m buying the cuban coffee. Cheers bro!
Sweet!!! I hope you have a dyno of the current situation so we can compare vs the same build with 292s. I think those are a key component.
Note that I did not have to do anything to vanos to allow these cams to work.

It would be awesome to add that dyno to this thread

I'll hit you up if I'm visiting down there! Cheers!
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      08-08-2019, 12:43 AM   #107
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This is fantastic news! 500 whp on pump gas and a car that can (hopefully) be driven on the street without issues...the dream has come true. I have been considering a NA stroker build myself - reliability is the desired outcome over ultimate power. But seeing this, that may slide the other way a bit

I wonder what this could do with rear-end gears and a CF driveshaft? I don't think I'll ever see the top speed of this car - but a bit more acceleration is never unwanted!

Great work SYT_Shadow, looking forward to further discussion and updates!
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Last edited by TimberWolf_3063; 08-08-2019 at 12:51 AM..
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      08-08-2019, 05:42 AM   #108
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Quote:
Originally Posted by TomHudson View Post
Rear diff ....
What do you recommend to improve the rear diff?
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      08-09-2019, 06:21 AM   #109
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Quote:
Originally Posted by TimberWolf_3063 View Post
This is fantastic news! 500 whp on pump gas and a car that can (hopefully) be driven on the street without issues...the dream has come true. I have been considering a NA stroker build myself - reliability is the desired outcome over ultimate power. But seeing this, that may slide the other way a bit

I wonder what this could do with rear-end gears and a CF driveshaft? I don't think I'll ever see the top speed of this car - but a bit more acceleration is never unwanted!

Great work SYT_Shadow, looking forward to further discussion and updates!
Yes, perhaps that is the best part, 500whp on pump gas with no weird needs. I take it to work when I want, etc. It's a blast!

I could not trust Izzy & Corry's work more, I've never seen that level of attention to detail. The E90 will continue to be double-tracked hard and if there are any issues I'll post them here.

The CF driveshaft is a thought but I've seen the numbers and doubt it generates more than a couple hp.
The car is still on a stock diff but when it dies we'll get a built one with a slightly lower ratio.

As it sits now I'm sure it has a 2 minutes flat at the Glen in it.
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      08-16-2019, 08:48 AM   #110
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Quote:
Originally Posted by SYT_Shadow View Post
hehe yes. The CS doesn't get dragged anymore by 991.1/.2 GT3s/RS but it will be a real pleasure to keep up to them in the straights, as if you can do that they it's quite easy to outbrake and outcorner them.

I got a 'shake' sticker for the E90 and the CS will get a 'and bake' one when my brother and I are driving
Shake & bake is only allowed if bake runs Mike Honcho & 47 on the side of the car. However the full spread will not be required out of respect for everyone with eyes. I will neither confirm nor deny this origin for me locking up #47 for NASA Texas...

Do you think the do88 bits will still handle the cooling sufficiently? Certainly an awesome package, curious to see how it performs in your car now with the stroker.

This build is so awesome - definitely sold me on going this route after I'm finished with my E92 in class competition. Even will have the karbonius intake sitting in storage waiting for it. Not sure you can get any more fun then this on the track outside of somehow a E92 GT2 magically finding it's way into the garage. On the street - just wow, perfect build.
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