Official Harrop TVS1740 Supercharger Thread

SpartanGA · 10-23-2016, 10:41 PM

Quote:

Originally Posted by L4ces

What exhaust setup do you currently run?

Meisterschaft titanium GT2

Just cat back

pooyab · 10-23-2016, 11:11 PM

Quote:

Originally Posted by SpartanGA

Quote:

Originally Posted by L4ces

What exhaust setup do you currently run?

Meisterschaft titanium GT2

Just cat back

I have Meisterchaft GT2 with 3" Xpipe and no primary cats

L4ces · 10-24-2016, 08:01 AM

Quote:

Originally Posted by pooyab

Quote:

Originally Posted by SpartanGA

Quote:

Originally Posted by L4ces

What exhaust setup do you currently run?

Meisterschaft titanium GT2

Just cat back

I have Meisterchaft GT2 with 3" Xpipe and no primary cats

Well, that explains why you can barely hear the induction noise and the supercharger wine.

SpartanGA · 10-24-2016, 04:42 PM

Quote:

Originally Posted by pooyab

I have Meisterchaft GT2 with 3" Xpipe and no primary cats

How much pop and 'spit' do you get?

pooyab · 10-24-2016, 06:10 PM

Quote:

Originally Posted by SpartanGA

Quote:

Originally Posted by pooyab

I have Meisterchaft GT2 with 3" Xpipe and no primary cats

How much pop and 'spit' do you get?

It's not consistent. I'm sure it'll be more with a burble tune but don't want to damage the engine. Scared myself once with it pop since it was unexpected...

Mvy · 10-25-2016, 10:10 AM

Mike,
How many Harrop kits have been sold in the US? Just wondering how special we are ;-)

jgbedford · 10-27-2016, 10:01 PM

So BMW changed the rod bearings sometime in 2011, but nobody can tell me if my car has the new or old bearings. I sent my last oil change to Blackstone, and there was 0 lead in the sample at just shy of 9,000 KM. There were traces of aluminium. Blackstone hypothesised that I am on the new bearings due to the lack of traces of lead. I just want to be sure so I can calculate the additional costs to get my bearings done prior to the supercharger.

When I contacted Harrop - they were on the fence and said that they can't be sure and it would be safer to do them to be safe before doing the supercharger?

Has everyone with the Harrop setup done their bearings? What year is your car?

Thanks!

e90///M3 · 10-28-2016, 01:30 AM

Quote:

Originally Posted by Jbedford

So BMW changed the rod bearings sometime in 2011, but nobody can tell me if my car has the new or old bearings. I sent my last oil change to Blackstone, and there was 0 lead in the sample at just shy of 9,000 KM. There were traces of aluminium. Blackstone hypothesised that I am on the new bearings due to the lack of traces of lead. I just want to be sure so I can calculate the additional costs to get my bearings done prior to the supercharger.

When I contacted Harrop - they were on the fence and said that they can't be sure and it would be safer to do them to be safe before doing the supercharger?

Has everyone with the Harrop setup done their bearings? What year is your car?

Thanks!

I believe 2011 and up are aluminum type bearings which is probably why you are having a hard time tracing the lead/copper. My understanding is that the 2011+ has a disadvantage because it is harder to tell on your oil samples whether your RB's are going bad.
Good luck

Mvy · 10-29-2016, 08:49 PM

Quote:

Originally Posted by Jbedford

So BMW changed the rod bearings sometime in 2011, but nobody can tell me if my car has the new or old bearings. I sent my last oil change to Blackstone, and there was 0 lead in the sample at just shy of 9,000 KM. There were traces of aluminium. Blackstone hypothesised that I am on the new bearings due to the lack of traces of lead. I just want to be sure so I can calculate the additional costs to get my bearings done prior to the supercharger.

When I contacted Harrop - they were on the fence and said that they can't be sure and it would be safer to do them to be safe before doing the supercharger?

Has everyone with the Harrop setup done their bearings? What year is your car?

Thanks!

Yes, everyone that does this should change their bearings first. SCs put a lot of strain on the lower part of the engine and this has to be in excellent working order or you are headed for disaster before you even get started.

Pro-AM3 · 10-30-2016, 07:46 AM

Quote:

Originally Posted by Mvy

Attachment 1509723

Heres my dyno results. Blue is before, Red is after. This is wheel hp and torque so after the typical drive train loss, crank adds up to 530 or so HP. Im running high flow cats and 93 octane pump gas at sea level.

Pick up the car monday and cant wait to drive it.

Mike,
is there anything wierd about how jerky the dyno looks at the end of the rpm band or is that just typical turbulence due to the blower? The Harrop charts look really smooth all along the powerband.

I would get that checked out ASAP! Even on smoothing 3 thats too choppy, meaning you are having timing retard and likely knock. what octane were you on?

///Mobbin · 10-30-2016, 10:49 AM

Quote:

Originally Posted by Mvy

Quote:

Originally Posted by Jbedford

So BMW changed the rod bearings sometime in 2011, but nobody can tell me if my car has the new or old bearings. I sent my last oil change to Blackstone, and there was 0 lead in the sample at just shy of 9,000 KM. There were traces of aluminium. Blackstone hypothesised that I am on the new bearings due to the lack of traces of lead. I just want to be sure so I can calculate the additional costs to get my bearings done prior to the supercharger.

When I contacted Harrop - they were on the fence and said that they can't be sure and it would be safer to do them to be safe before doing the supercharger?

Has everyone with the Harrop setup done their bearings? What year is your car?

Thanks!

Yes, everyone that does this should change their bearings first. SCs put a lot of strain on the lower part of the engine and this has to be in excellent working order or you are headed for disaster before you even get started.

I have to change my oil pan and am thinking about doing bearings at the same time, timely advice thanks!

Hoping to go Harrop in 2017!

Mvy · 10-30-2016, 11:58 AM

Quote:

Originally Posted by Pro-AM3

I would get that checked out ASAP! Even on smoothing 3 thats too choppy, meaning you are having timing retard and likely knock. what octane were you on?

Its just the smoothing setting. 93.

jgbedford · 10-30-2016, 10:53 PM

Quote:

Originally Posted by Mvy

Yes, everyone that does this should change their bearings first. SCs put a lot of strain on the lower part of the engine and this has to be in excellent working order or you are headed for disaster before you even get started.

What is the recommended replacement? The VAC bearings with increased gap?

Pro-AM3 · 10-31-2016, 08:15 AM

Quote:

Originally Posted by Mvy

Its just the smoothing setting. 93.

no, thats not just a smoothing issue, thats a knock issue.

smoothing 3,more boost less octane, nowhere near the same knock

http://www.bigdynodatabase.com/DynoG...INTANI_COM.jpg

Mvy · 10-31-2016, 10:48 AM

Quote:

Originally Posted by Pro-AM3

no, thats not just a smoothing issue, thats a knock issue.

smoothing 3,more boost less octane, nowhere near the same knock

http://www.bigdynodatabase.com/DynoG...INTANI_COM.jpg

But your example is smoothing setting 3 and my dyno is standard smoothing 1. My shop and BPM both confirmed its nothing to worry about. I've driven the car for 1,100 miles and I am sure if it was knock it would have shown up in other ways. Any suggestions that would help are appreciated.

Mvy · 10-31-2016, 10:51 AM

Quote:

Originally Posted by Jbedford

What is the recommended replacement? The VAC bearings with increased gap?

How about moving this to one of the numerous bearing threads instead? Everything turns bearings and this is for the Harrop SC reviews/questions.

Pro-AM3 · 11-01-2016, 07:55 AM

Quote:

Originally Posted by Mvy

But your example is smoothing setting 3 and my dyno is standard smoothing 1. My shop and BPM both confirmed its nothing to worry about. I've driven the car for 1,100 miles and I am sure if it was knock it would have shown up in other ways. Any suggestions that would help are appreciated.

Thats not what smoothing and standard are. smoothing is universal throughout dynojet's to "smooth" out the "curve". "Standard" is the correction factor and doesnt matter in this case as its just a HP figure derived from conditions.

I suggest you look into the knock issue sooner than later. Investigate for yourself, see how many other dyno's have that rough of a curve. I would bet your about to be another victim of broken pistons/rod disguised as a "rod bearing" issue.

I would stay away from any "shop" or "tuner" saying that is "normal"

Dont say you havent been warned.

Mvy · 11-01-2016, 08:10 AM

Quote:

Originally Posted by Pro-AM3

Thats not what smoothing and standard are. smoothing is universal throughout dynojet's to "smooth" out the "curve". "Standard" is the correction factor and doesnt matter in this case as its just a HP figure derived from conditions.

I suggest you look into the knock issue sooner than later. Investigate for yourself, see how many other dyno's have that rough of a curve. I would bet your about to be another victim of broken pistons/rod disguised as a "rod bearing" issue.

I would stay away from any "shop" or "tuner" saying that is "normal"

Dont say you havent been warned.

OK, so how do I check and what would you do then?

332ijunkie · 11-01-2016, 08:31 AM

Quote:

Originally Posted by Mvy

OK, so how do I check and what would you do then?

I would do a log for starters. Watch what ing advance is doing on all 8 cylinders...

///Mobbin · 11-01-2016, 10:11 AM

Quote:

Originally Posted by pooyab

I have Meisterchaft GT2 with 3" Xpipe and no primary cats

Does Mike have a different tune for this or similar exhaust setups?

Mvy · 11-01-2016, 10:24 AM

Quote:

Originally Posted by ///Mobbin

Does Mike have a different tune for this or similar exhaust setups?

Yes. When you purchase the kit it asks you what type of set up you have so the correct tune ships with the kit.

Pro-AM3 · 11-01-2016, 10:56 AM

Quote:

Originally Posted by Mvy

Yes. When you purchase the kit it asks you what type of set up you have so the correct tune ships with the kit.

As someone else stated, logging is the best course of action. I just saw you have a canned tune. Not the best idea

10-25-2016, 10:10 AM	#138
Mvy Captain 572 Rep 982 Posts Drives: 2008 E93 M3 Join Date: Nov 2014 Location: GA Peach iTrader: (0)	Mike, How many Harrop kits have been sold in the US? Just wondering how special we are ;-) __________________ Harrop Supercharger, BPM Tune, K/W Coil over kit, Stoptek BBK, Magnaflow exhaust, ear to ear grin everytime I drive...
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10-27-2016, 10:01 PM	#139
jgbedford New Member 10 Rep 28 Posts Drives: 2011 e92 ///M3 Join Date: May 2014 Location: Canada iTrader: (0)	2011 rod bearings? So BMW changed the rod bearings sometime in 2011, but nobody can tell me if my car has the new or old bearings. I sent my last oil change to Blackstone, and there was 0 lead in the sample at just shy of 9,000 KM. There were traces of aluminium. Blackstone hypothesised that I am on the new bearings due to the lack of traces of lead. I just want to be sure so I can calculate the additional costs to get my bearings done prior to the supercharger. When I contacted Harrop - they were on the fence and said that they can't be sure and it would be safer to do them to be safe before doing the supercharger? Has everyone with the Harrop setup done their bearings? What year is your car? Thanks!
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