As you reported above they had engine knock with 8 PSI of boost. They sent the ECM back for a more conservative tune but still had engine knock with 8 PSI of boost. According to your report they did not perform any additional remediation to address the knock, such as turning down the boost a pound our two our finding better gas. Now the engine is shot, no wonder. The Hahn Stage II installation manual clearly states not to drive the car if you have knock.

The Hahn kit and any other after market performance add-on is just that, an after market performance mod. When you "hot rod" any car you are taking a risk of blowing something up, it doesn't matter what the mod is (super charger, turbo, tune, etc.). When you mod a car you are trying to make the car respond to your extreme driving needs, so a modded car is generally pushed to the limits by its driver. Catastrophic failures in modded cars sometime have to do more with how the car is being driven than the mods themselves. If drive any car hard enough, stock or modified, you will have catastrophic failures.

I blew up the motor in my supercharged Boxster a few weeks back. I didn't go onto the Boxster boards and start crying that the supercharger kit I installed made the thing blow up. Me pushing the car beyond it's limits was the culprit. As a side note I just bought a Cayenne Twin turbo SUV yesterday (520 HP), it makes my Boxster and Sky seem slow. I know this forum frowns on kill stories but I can gleefully report that one Z06 in my town was embarrassed by an SUV cleaning his clock. My new SUV handles better than my Sky, thats just ridiculous. I digress.

Your post has been flagged unsubstantiated because it is just that. You heard that someone toasted a motor and they happen to have had a Hahn system installed. You are providing a third party account without even knowing the particulars of the engine failure or the circumstance of when it happened. I myself consider this rumor until I hear it from the horses mouth and all of the facts are presented.

__________________
2007 2.4 Sky

• Hahn Stage IV Turbo with High Boost option
• Greddy Boost Controller
• Greddy BOV
• Borla Single Exhaust
• 19" OZ Superleggra IIIs
• ClutchMasters Stage III Clutch

Don't bank on the horses mouth to come crying here.

I admire the work that Hahn and for that matter others, have done in providing a monster performing car out of a Pontiac 177HP pisspot. I enthusiastically embrace the work that has been done to make the car perform the way it can. I love that these mods allow 2.4 owners to keep pace with GXP and Redline owners. Don't for a minute, believe that I am trying to soil the great reputation of Hahn.


If folks on this forum were a little less insecure about this topic, they might learn something from this "apparently unique" incident. I wish I could. Mr. Hahn seems to have tremendous loyalty on this forum. I commend that, but I'm sure even he would be curious why this particular engine calved.

__________________
2006 2.4 Solstice
Envious/Darkside
True base model - just like the classic roadsters
Security system
Airbag decal
DDM STAGE 2 Supercharger/Intercooler - now it rocks!

i assume "erin" is from hahn.... either way seems a hahn rep could comment here...lets hear their perspective
. looked for the injector post ?,,,,, i'm assuming a failed injector could be catastrophic ?..... in any event there was a problem if it was "reflashed " and obviously that didn;t cure it......... at this point .... systematic teardown and examination will prolly shed some light
no sense beating a dead horse but if there is something to learn



- thats what i'm looking for

we all know don't drive if you KNOW it has knock ...but thats not saying you'd even sense impending doom in all circumstances... the ecm was sent back in for "detonation " problems........ a more conservative tune would not have remedied a failing injector ??
theres no need to be soooooo defensive on either side.......some intense scrutiny of what the actual issue was ????

and that might evolve into better trouble shooting skills for all of us

i wanna hear the good ,bad and the ugly...... lol.. the facts ........ i'm very interested as many others as to what went wrong........

__________________
BOOsted 2.4

42lb injectors
3" tubes front to back
5-7 boost
trim 50 garrett t3/t4 custom- bare bones pumpking
38mm tial wastegate / bov
custom i/c (BELL)
Werks radiator
aem wideband
gxp exhaust /magna flo - integrated dumptube ( b_faster and R&D automotive
custom manifold (sh**er the skunk )
hi flo cat
HPTUNING - the hard part !!!
JET-HOT 2000
aerologic egt kit
YEAH I DID THAT !

Ummm. Sorta what I was thinking. Thanks for saying it.
Tom

I'd like to see how well your Cayenne Twin-turbo would hold up against an Audi R8.

I have made many offerings to the gods of speed. Here is a list of motors I've blown since roughly 1978 (listed in chronological order)>

3.5 HP Briggs and Stratton (2 motors, 2 busted cranks)
Honda CT 70 (failed valve train)
Chaparral 80 (fuji motor, broken piston)
Hodaka 100 (Fuji motor, broken piston).
Honda NR50 (aka Honda Express moped), 2 motors, both with piston failures
Suzuki RM 400, wrist pin failure
305 Chevy SB (Mom's car, timing chain failure, sorry Mom)
225 Slant six Plymouth (con rod failure, Girlfriends car, sorry about your Duster Pam)
Mazda 13b (first car, 3 different motors, 2 rotor house failures and a apex seal failure)
396 Chevy BB (crank failure)
402 Chevy BB (crank failure)
400 Pontiac (rod)
455 Pontiac SD (74 TA, crank)
421 Pontiac HO (Catalina factory drag car, valve train failures).
302 ford (Pinto transplant, spun main bearing)
Z1 900 Kawasaki
2.3 ford (Mercury Capri II with turbo, crank failure)
355 SB Chevy (street stock racer, 3 seasons, 4 failed motors, all con rod or wrist pin failures).
2.3 Dodge Shelby turbo (main bearings twice, motor replaced twice under warranty).
Honda VFR 750 (3 motors, all valve train failures, in my legends racer).
Saab 9000 Turbo (rental car)
350 Chevy SB (Girlfriends Vette, sorry Susan)
Ford SHO V6 (valve train)
Ford SHO V8 (valve train)
Ford 4.6 (SVT stang, crank bearings)
Jaguar 4.0 V8 (factory supercharged XJR, split #2 cylinder)
GMC truck (uhaul with 10 million miles, may of had nothing to do with my driving)
Hummer H2 (whipple supercharger, piston failure)
Mercedes E430 V8 (dropped a valve)
Lexus IS300 6 (NOS, piston failure)
Dodge 4.6 (whipple supercharger, valve train failure)
Lexus GS430 (sheared cam sproket bolts, motor repaired)
Porsche 2.5 (aftermarket supercharger, on my 2nd motor).

__________________
2007 2.4 Sky

• Hahn Stage IV Turbo with High Boost option
• Greddy Boost Controller
• Greddy BOV
• Borla Single Exhaust
• 19" OZ Superleggra IIIs
• ClutchMasters Stage III Clutch

Damn! Remind me not to loan you something of mine to drive. <G>
Tom

The R8 should be slightly faster. Difference in driving skills can make up the difference. This is on pavement of course, off road or on snow the Cayenne would win hands down.

http://www.dragtimes.com/Porsche--Ca...ag-Racing.html
http://www.dragtimes.com/Audi--R8-Drag-Racing.html

__________________
2007 2.4 Sky

• Hahn Stage IV Turbo with High Boost option
• Greddy Boost Controller
• Greddy BOV
• Borla Single Exhaust
• 19" OZ Superleggra IIIs
• ClutchMasters Stage III Clutch

My friends hahn soltice engine died recently, we think its because the tune was not good (We live in California and require different tune for our cheap gas), he was told that he would receive a tune made for California. He now has a new engine and upgraded the kit to stage III and his engine is knocking, he was told he would get a California tune also on stage III but I think hes going to have to go to a local tuner to get the job done properly. I am having my sky fitted with a Hahn kit as I type this, my only concern is their California tune. I think you guys in other states should be good, the hardware itself is first class, its the "california software" that concerns me.

Im amazed anyone will sell you a tune and claim it to be "california ready"

I run a mix of 100/91 to get about 95 and run about 14 psi. I think this puts me around 325whp for daily driving. If I put full 100 in, I can run about 16 to 17 psi and about 360 to 380 whp.

__________________
View my car domain page http://www.cardomain.com/ride/3062072
Proud owner of Hahn Racecrafts "Soul Food" Solstice and member of TEAM SOLSTICE 2008

Mods

• Hahn Turbo Stage IV with valvetrain upgrades
• Clutch Masters Stage IV Clutch
• Hahn High Flow CAT
• Solo Performance Center Dual Exhaust with Norms Fiberglass Diffuser
• Eibach Sportline Springs
• SSBC Big Brake Kit
• Konig Privat 19" Wheels
• Custom Two Tone Paint
• Razzi Wing
  

I was also offered the "91" octane tune which reduces timing slightly to compensate for the crappy gas. I find that if I run 91, I can only run about 7psi without knock. My car has a custom stage 4 tune that was setup at Hahn Racecraft and I will stick with it and just mix gas if I need more power. But it's as simple as this, if you have engine knock, turn down the boost and you shouldn't have problems.

Clear

__________________
View my car domain page http://www.cardomain.com/ride/3062072
Proud owner of Hahn Racecrafts "Soul Food" Solstice and member of TEAM SOLSTICE 2008

Mods

• Hahn Turbo Stage IV with valvetrain upgrades
• Clutch Masters Stage IV Clutch
• Hahn High Flow CAT
• Solo Performance Center Dual Exhaust with Norms Fiberglass Diffuser
• Eibach Sportline Springs
• SSBC Big Brake Kit
• Konig Privat 19" Wheels
• Custom Two Tone Paint
• Razzi Wing
  

Thanks Clear - good info. I think we can get 93 here in some places, but 91 is much more common. Cheap gas may have been an issue on the local failure.

What about the injector failure idea? Does this sound feasible?

__________________
2006 2.4 Solstice
Envious/Darkside
True base model - just like the classic roadsters
Security system
Airbag decal
DDM STAGE 2 Supercharger/Intercooler - now it rocks!