blown_mb2

Hi guys.

I'm tobias from germany and drive a B18c4 (B18c1) engine as a turbo with the following components.

- Skunk2 Pro1+ cams
- Brian Crower springs, steel retainers and valves
- Manley pistons and rods
- balanced OEM camshaft
- Darton MID Sleeves

The comp is 9:1 and the rev limiter is set at 8800rpm.


The car runs very well with 1.2bar of boost and i had no problems.

Two weeks ago, the car begans to chatter and i stopped the engine.

Now I opened the motor and I'm very angry.
One of the retainers is broken in two pices and the intakevalve feld into the cylinder.


Can anyone attest me, that the BC valvespring is able to handle the lift of the Skunk2 camshaft?


Some pics of the damage






Thanks for your answers.

95skunkedgsr

how bad dose the piston and block look ??

i dont think the crower set could hold those cams

boostedeg302

Damn bro, that really sucks. The best thing to do would be to email bc regarding your problem and show them the pics. They would be able to give you the best answer.

TheShodan

iTrader: (14)

I know I sound rather hateful, but as my personal opinion, I never trusted Brian Crower stuff. CROWER (his dad) sure, but not the BC. Next time try the full Skunk2 , Portflow, Toda, Buddy Club, Crower or even Kelford

Glove

X2,

the fact that brian crower junk is all over ebay makes me doubt the quality

092eg6

bullfrog is where its at homie

blown_mb2

Long long time ago was the last post.

We have found the problem.

The problem was that the camshaft had too strong hub for the BC parts.
BC has previously indicated that the valvetrain will work without problems with my cams and the redline at 9100rpm.


In fact i had valvefloating above 8300rpm.

My cams and the rocker arms were also defect.

The only things which i can use again form the old setup are:
- the block after boring and honing
- the crankshaft
- the rods (thanks to MANLEY for the strong rods)

Not usable again:
- pistons
- head
- valve springs
- valve retainers
- valves
- rocker arms
- bearings for rods and crankshaft

crvtectim

Ouch! :/

rich7777

Damn, thats a bitch... I have those exact same springs and retainers to run in my engine but on a much milder cam. I've always seen there products as been pretty good but each to there own i guess...

Blown mb2, what do you mean by " the camshaft had too strong hub " ?

Also were you using the valve keepers ?

Good luck with the rebuild

blackeg

so was it the aggressive cam or the rpm that did the retainer in? sorry to see the damage. this has me concerned as im about to use those steel retainers in a non boosted lsvtec around 8500-8800 revs

rich7777

I've emailed BC with a link to this thread. We need to get to the bottom of this.

Another thing, if that retainer was chipped (even a tiny bit) for what ever reason it would of caused this. I may just get my spings and retainers crack tested along with everything else now..

dustin213

This is Dustin from BC. Tobias contacted us back in 2010 and we sent him a replacement spring kit w/ titanium retainers and a set of valves without any questions being asked. He is located in Germany so we never saw the products to determine the cause of the failure. The Bc kit can handle the cam and is designed for high RPM. We stand behind our products 100% and if Tobias needs more product support from us we would be happy to help. It would be easier to contact us direct rather than thru a forum. I can be contacted @ dustin@briancrower.com or by phone @ 619-749-9018. We have sold about 2200 of these kits to date as well.

blown_mb2

What Dustin said is 100% true.

I see one problem in the weight of the retainers.
The steal retainers weight nearly the same as the OEM retainers.


Fact is, that all tolerances were on the good side.
My engine builder has checked:
- cam timing
- valve clearance
- space between retainer and valveguide by max. cam lift
- compressed spring by max. cam lift
etc.

Everything was on the good side.

The only possible reason is valve floating by higher rpm's.
And the damage on all VTEC rocker arms and VTEC cam say the same.


I will not take off any discussion, but this is the history of my build and I will informate the peoples here.

Please understand this BC.

dustin213

without seeing the retainer we cannot determine the cause of the failure. It is a very unfortunate situation and in no way are we questioning the tolreances or the engine build and i really wish you would have contacted us furthur as we would have helped with the rebuild. We stand behind our products 100%. I have been doing this a very long time and in the high performance engines sometimes things happen and failures occur. Tobias if there is anything we can help you with please do not hesitate to contact me @ dustin@briancrower.com

blown_mb2

Okay thanks.

The customers support by BC is definetly 100%

In the last 2 years i had not enough time to keep my threads up.
In future this will be a lot better, i hope so.

blackeg

does this pertain to the steel retainers or the titanium retainers? i noticed he had the steel ones and you sent him back a set of titanium ones. were his rpms and cam too much for the steel retainers but within spec for the ti ones? i am pleased to see your customer service is excellent

dustin213

Either kit handle it. We sent him back titanium retainers as we were out of stock on the steel retainers and did not want to delay the build for Tobias.

dustin213

Thanks Tobias. Please contact me in the future if i can help you with anything sir.

blown_mb2

Here is the former setup from 2010.

So everyone can make a opinion if there is a fault in the setup.


Block:
- B18C4(1) DARTON MID sleeved block 81.5mm
- Manley Pistons 9:1
- Manley H-beam rods
- clevite bearings
- Golden Eagle head gasket
- ARP main and head studs
- ERL main gridle
- balanced crankshaft with clutch and flywheel
- portet OEM oil pump
- build by
borger-motoren.de
he is also building the engines for dakar rally cars and for some 700-800whp evos und hondas in germany. he is the best here.

Head:
- stage4 head work by INDIVIDUAL PERFROMANCE PARTS
- BC springs, valves and stell retainers
- SKUNK2 Pro1 camshafts
- SKUNK2 Pro adjustable cam gear
- supertech valve seals
- build by
http://www.individualperformanceparts.com/index.html

turboparts:
- Garret GT3076R .82ar
- Synapse engineering header and downpipe
- edelbrock victorX manifolrd
- tial blow off and wastegate
- 3" exhaust
- AEM boost controler
- AEM wideband uego

tune:
- tuned with crome on a p28
- revlimiter in street tune a 8800rpm/race 9100rpm
- boost 16psi
- @16psi 475whp
- tuned by
http://turbotoyperformance.de/


I think, there is no error in my setup and every people who did the work is the best in germany.