868rwhp... 7800rpm... 1.7-1.8bar... On and off for 6k miles on a BONE STOCK motor... Car had 39k miles when the motor was pulled during the transmission repaired, and previous turbo kit made 650rwhp. Came out making power...

There is no way to say "This will last for this long..." I have a fully built motor but one little error due to fuel or my choice to do something could frag that also... Common sense is a big thing that most of the time people don't have...

 

The most important part of your comment came in the last sentence..
I agree..

 

Why does power die off so early, 5500rpm ??? Like a realy powerful diesel! What can you do to hold the power a little longer?

 

Whole heartedly agree that this was the major contributing factor in the demise of the motor. Car ran like crap prior to you getting the tune worked out and nobody knows how poorly it was treated/driven in such a state.

Smartest post excerpt of the whole thread.

 

I would not say that I'm aware of every major tuner having issues with excessive TQ at low ranges causing failures. Then again failures as a rule at all. We have as with others run much higher TQ and HP in the ranges. These are cars that are still running fine after many years and all have stock bottom ends. I have also been personally building street and race engines for several decades.

When I look at bent rods in that way regardless of being stock or aftermarket it is from excessive or better yet uncontrolled head pressures. This can happen from many different variables without getting into specifics.
Sometimes the rods can be bent partially at one time and they can lead to piston or bearing failure yet are prevalent with various CEL faults during this time. Another is they bend at the same time as a catastrophic engine failure. I will say they did run their best just before it happens.


Best,
Scott Slauson

 

Interesting as I'm not aware of them.... I assume that by what we are commenting on these had been blown engines in which would be a first to my knowledge. Normally a client would offer some input if this was an issue by posting, calling or emailing. How many for Proto ,Evo and Giac etc?

Like I said I haven't seen this except as I specified in 30 years of building and tuning engines as stated. TQ is also gained as a result of excessive head pressures.

Best Regards,
Scott

 

You did state 2 cars though being specific to Softronic by your knowledge yet then bowed out in that it was of no malice. I did ask about the other tuners also in which you stated we all have had this issue on this forum....TK of Proto is not aware of this either as I asked after you mentioned this and would like his number. I never stated it was from your tune as I'm also assuming it was correct also..

Have a great evening

 

Can you post links Tony?

I have these turbos and Softronic tuned my car. I use race gas (not meth) and have driven my car fairly hard on the street and at the drag strip...also a fun 250 miles to the TX mile, did 5 passes and drove back 250 miles same day

I am still blown away that the customer and other people on the forum are looking into this engine failure.

 

I have found a few proto cars now as well. 6speed search function is not proving to be not that great.

If you find a alpha 28 failure thread, please post a link.

I was just pointing out that most of the cars I am seeing fail (through searching on the forum) are running meth.

 

knocking

 

Wow..just stumbled onto this....how can car owners asking their tuner for more power, blame their tuner when their engine pops? I can appreciate Chris (Cossey)stepping up and admitting he knew the risks. My tuner (yes, EPL) told me all the risks, EVERY time we made a change to my car. Trust me, I wanted the fastest 18G car on pump/meth, but I just wasn't willing to risk my engine for it...and I thank Tony for all the advice, which he gives ALL of his customers playing at this or any level. My 18g pump/meth car has made very impressive HP numbers on the dyno, but I chose not to leave it there, based on input from my tuner. If I didn't heed his advice, I might be a part of the bent rod brigade too. Even as it was, it was a very fast car in its "detuned" state.

 

I had no intention of ever building an engine for this car. It is for this and many other reasons I chose to stay with a smaller turbo at 90% than run a bigger turbo at 60%, even though I did come close to upgrading like many others.

 

I never thought I'd even upgrade turbos from K16s... Boy how things change...

 

well i saw maybe 3 cars which moded by bigger turbos ((US tuner))

(upgraded vtgs- gt30s - a30) damaged their engines !!! i do not blame the tune as the guys can controll the boost by ebc !!! the vtg car was weired how he damage his engine
about me , iam running softronic tunning from stage 1 till now GT30s , me and softronic exchange emails and datalogs to fine tune my car , all what can i say the car is fast , really fast . i race daily and boost 1.5bar with 93 and meth only !! car still strong no issues , you can see my times from 100-150mph is 5.77sec , and this run was in pump gas and meth !! also check my channel in youtube (yousefg35) see my street races videas , thanks god engine is still alive

yousef

 

Now i'm curious to see what others that have A28's are running...

I had Todd (Protomotive) tune my car with the following:
1.27bar on 91octane ONLY

- A2871
- Europipe Loud Exhaust
- 72# injectors
- 68mm IPD Plenum
- Stock 996 GT2/X-50 Intercoolers
- Stock 3.8bar FPR
- Stock Intake pipes
- Stock Air filter / Air box

I later added 74mm IPD Plenum, GT3 Throttle Body, 997 GT2RS Intercoolers, soft hose intake pipes w/ aluminum plenum. I have not retuned for the added mods...

I was thinking of adding a meth kit then retuning for:
- Above mods
- Meth Injection
- MPG Fix
- Distance until gas is gone Fix
- Maybe mafless tune and rig up a push through if this is possible?....

However, with stories of A28s having problems like too much torque i'm a bit hesitant to do anything further at the moment.... I do feel a ton of torque down low that shows when racing my friends AMS 9 GTR from a roll which seems to have more turbo lag than me.

What are your thoughts? and/or setups that you are currently running with A28 variants?

Thanks,

- David