AWDstylez

4G63's blow up at 250whp on pump gas? Damn, I better go detune my car about 150whp...


That motor must have had something mechanically wrong with it or it was tuned to TRY to blow it up. Those motors don't fail that catasrophically for no reason at that low of a power level.

Tom-Guy

I know you, and to discout pretty much everything you say because you are the quintessential DSMtard.



Shows how many dynos you have been on and how little experience you have with tuning, Koby. :1



These motors are also a decade old or more, and serviced by enthusiasts who... while some of them are quite bright... usually don't know as much as they should. I'm not saying the "dumbass at Pina Motorsports" does or doesn't know how to tune, but you're hitting the right note by casting doubt on all parties.

I want to see pictures of the pistons, the bearings, oil pump gears, etc, in very ------- high resolution before any more ---- talking takes place. As things stand it is unwarranted.

stickman

I actually told him I wasn't going to turn it up anymore. I figure a spike of 26psi was enough. It was only holding 20-21 to redline because the spring in my wastegate would not hold anymore. i told him to tune it at that and that was all. By that time it was almost 7pm and I had an hour drive ahead of me. Were you there at the dyno I was. I stopped turning up the boost while he was tuning the fuel. It didn't blow until he started adding timing in. If you don't know the facts and can't read that I already posted what boost it was running and also the fact that I don't know how to post the logs on the forums, well I think you need to put the **** back in your mouth and shut the ---- up. I actually never said anything about 250hp. I said the turbo should be able to make close to 300 on that motor.

Koby

Just this year I saw a Galant VR-4 put 362AWHP to the ground with a 16g.

This was on the first dyno pull, pump gas, stock bottom/top end original motor/etc... 4g63t

Some people just shouldn't be tuning cars, one of those people is Andre.

AWDstylez

Gay as ----. I hope he uses it for towing with that powerband.

Koby

Nope, just used it to push the fullweight car to 11.90's :P

d-man

I've been reading this and people area talking about the engine only being able to hold soo much power.

I'm sure the motor could withstand more power than 250whp if the boost wasn't turned up to 26psi with that small of a turbo. With a bigger turbo and lower boost I'm sure that it wouldn't have detonated and made more power. Isn't it boost pressure that brings on the detonation and not HP level?

Less boost + bigger turbo = more reliable power

Tom-Guy

Boost level means nothing. Airmass, charge temps, tune.

Bad91TSI

yeouch
Sorry about you trouble here. I think I remember talking to you guys about this at battle. I don't know how good of condition the motor was in, but motors can let go without any warning signs. I know of another guy that recently lost a stock-ish motor with zero warning(it had stock internals with ARP rod bolts, and head studs.) He was tunning for high HP (500+) and did some 2nd through 4th gear tuning pass at 32psi. He only got 1deg of knock so he figured it was good to go, and he was ready for the track (searching for 10's). SO he started heading back home ....driving in 5th gear and when he let off the gas the rod said ---- you! AND KABLAAAAM bye bye ...and that was when he was cruising and taking it easy ....crappy huh?

If PINA only made about 20hp more than your own tune ....maybe it was just time for the motor to go? I would not think that 20hp would make such a difference that it would blow a motor? ....It kinda sounds like the motor might have blown even if you didnt take it to PINA for the extra 20hp? .......I donno, it's really to hard to say, but anyway sorry for the loss. Hopefully you'll be back on the road soon and we'll see each other at the track again

goood meeting you guys

ju-on

Dyno Dynamics do read low, that's a pretty well known fact. You can add in correction factors and what not to try and get it to equal the inflated dynojet numbers, which are actually just based off some mid 80's motorcycle, but who cares. All it is is a tool. So yes, the $100,000 DD is going to be "off" when compared to a Dynojet, which are what you apparently see as being the "right" numbers?

Like someone else said, all it is is a tool to measure if you are making any gains. We had a car make just over 700 on the FWD Dynojet at one shop, then the next day bring it to the shop with the AWD dyno dynamics, and make high 500's. These eddy Current DynoDynamics dyno's are more advanced then the older Inertia dynojets, hence the reason they're so much money. You can do more with them, which is why they are becoming more popular in the market.

Anywho, sorry to hear about your motor falling apart. 243 on a DD is not a bad number for a small 16g. We had a local who worked at the shop put down like 290 on his Big16g setup with Link and E85, and that was with tons of free dyno time since he worked there. But still shouldn't have blown apart your motor unless there was something really wrong. And like AWDStylez said, your knock sensor will always be outputting a voltage. It's a microphone in a sense, it's always hearing something. But there is a threshold that is determined by the ECU (unless you have EMS obviouslly) based on your cars current state, and as long as the voltage is below that threshold, it will not pull timing. So like he said, that voltage reading means nothing, because that voltage may not be acceptable at idle, but may be below the threshold at WOT at 7k RPM. So if that is your sole reason for blaming the tuner, that really isn't a good leg to stand on.