How many went FI and blew a motor?
 

I've been going through all the builds and trying to see who all went FI on a stock block then either blew an engine there or built the engine and blew it on forged internals.

Can people post up if they blew their motors on boost and add info on details of the destruction: single/twin/supercharged, boost level, hp-torque numbers, number of miles on boost, destroyed on dyno/track/street, bent rod, melted piston, etc etc.

I'm trying to get a better picture of just what this motor can handle and see where things are failing.

The general consensus is that over 550whp, you're playing with fire. There hasn't been too many people who have popped motors (and all of the ones I can think of offhand were Stillen kits), but not too many people are pushing the stock block like you are. Sam at GTM told me 500-550 was safe, over that cylinder pressure starts to get iffy and you run the risk of a bent rod.

Yeah, I haven't come across many boosted blown motors on here and I definitely do not want to be added to that list. I'm really curious about what hp/torque levels people were at with blown motors and the circumstances behind.

Considering you just jumped into the top 5 of power here with that dyno run, you tell us. :rofl2:

Oh my engine is still running strong...fingers crossed. I'm totally confident with my tune. I just want to hear from others who may have blown motors.

There was a couple gtm cars that popped but they were way up there in whp. Like 600

I have heard of a few motors blew on the GTM supercharger, but that was like last year when I first joined and asked about stillen vs GTM(I'm not digging up that thread lol)

Most of the ones I hear about though are stillen superchargers and iirc, they were either modified and/or installed improperly.

AFAIK, no TT kits blew any motors yet

There was a black g37 with lime green wheels I think bullit owned it. And coop bent a rod to at591 whp but he caught it before it blew a hole in the block

FireDan you guys did 1 pull correct for the numbers? Christian n another GTM guy pulled those numbers on c16. Race gas allows for waaaay more power.

im at 534/500 stock block 12 lbs over 10k miles. No problems at all. Jist little minor things. Motors r strong.

Sharpbycoop blew his motor because his RPM was at 8100 while his oil pump system was stock.

You should never mess with Redline RPM before getting the right oiling system to the engine.

Other motor that blew from FI were stillen SC, the fail was from tune and kit it self. (if you want more power go for off road SC which is GTM, but if you want CARB Legal kit then go for Stillen and keep it as it is for god sake..)

I hate seeing people bashing on a kit because they wanted to extract more power from the SC. Go to Stillen Website check the horse power that your car will make with their kit (500 BHP which is around 400ish WHP) and if that achieved your needs then go for it, if not then that kit was never for you and you should blame your self if anything goes wrong with your car after messing with the kit. it's simple as that.

last but not least. Tune is the key of longevity. A bad tune can blow a stock car.

I couldn't have said it better myself.

Nothing is wrong with the stillen kit and if you live in California there is no reason not to get it unless you plan on making your car 100% track.

I do feel though that you could change the stillen kit up a bit but with stillen/vortech parts, like a vortech impeller and stillen's 9lbs pulley and just make sure your tuner knows what they are doing and you have a rock solid tune because like you said, a bad tune will blow up your car, even if its stock

We did a few pulls to get up to 611hp. Started at 530hp @ 7.5psi. Then went to 580hp @ 9.5 psi. Last one was the 611hp @ 10.5 psi. We were so close to 600s we turned up the boost just a little to see the results. Only reason I decided to chance it was because I have total faith in Todd Marcellini's tuning skills at Motion Lab Tuning. We decided it was best that we stop there lol.

Be advised if you didn't see my build thread or read elsewhere, these numbers were achieved by using Q16 VP race gas

Sharpbycoop said in his post on MYG37 that he wasn't convinced that the 8000 rpm rev limit blew his motor,and I'm not either. I saw and spoke to Jimmy the owner of the shop that built his engine ,let's just say that the engine wasn't blown from high rpm.

I can be added to the list of blown motor with my old Stillen Supercharger set up cylinder 2 piston wring went. A friend of my with a GTM TT 370z Nismo also shot a rod right out the side of his block at 550whp 12.7 PSI of boost after beating on the car for 13k miles.

:roflpuke2:

i said as far as i know :stirthepot:

And as far as I know for a fact your wrong.:tiphat:

^ Sarcasm if some of you didn't now

Last thing on my mind. :ugh2:

I had the kit installed at 22k miles. Currently north of 55k miles right now. It still needs a tune haha, but I'd rather wait. As of last week, the car is not a daily driver anymore.

What is "as far as i know for a fact"? that's like saying "hey I may be wrong, but I believe I definitely am alive". lol

I like it it's going in the sig

Just from the very few that have popped I personally will not go over 500WHP on the stock block. I also drive it like I paid for it so it doesn't see many redline runs. I have to spend to much money on other stuff right now that if I blew mine up it may be a while before it is back on road.

Remember guys, even with a good list of builds what is known is probably 10-25% of actual boosted 370z on the road. I would say for every failure we see, be it stillen or GTM kit or other, there is 2 more behind it somewhere else.

From what I remember in no specific order-

1. Improper Installation blew one motor via a damage fuel line causing a lean condition.

2. A second hand kit pulled from a salvaged car lost oil and damaged the turbine and engine.

3. Most likely a bad tune but yet to be determined caused the motor to be damaged.

4. High rev motor damaged exact cause unknown.

I'm sure there are a few more I don't remember.
Overall blown FI motor are from installation issues then anything else. The majority of people here have the good sense of doing things right.

We are not Honda Civic drivers who buy a FI kit off ebay and install it overnight in our parents garage only to have it blow up in your face the next day trying to be a drift king.

:stirthepot:

Here you go another spoon fed member

http://www.the370z.com/forced-induct...-tt-build.html

http://www.the370z.com/forced-induct...ml#post2515448

Keeping an FI engine safe boils down to the tuning. As long as you keep detonation out of the engine, you should be okay. Do your research and find a good, smart tuner. (There's not that many of them out there)

That "safe" 500whp from GTM TT kit - how many would it be in BHP ?

WHP is measured at the rear wheel.

Just go by WHP and you will be better off.

Typical loss from BHP to WHP is 15%-18% I believe.

Typically a stock Nismo gets ~290 WHP but is listed as 350 BHP.
83% makes it to the wheels. Or 17% is lost.


So lets say you modded it to output 500 WHP, working backwards is 602 BHP. Which is a hell of a lot of power for a production engine.

For perspective, some other production cars '09 and prior with around that power:
2005 Pagani Zonda F — 594 hp
2009 Bentley Continental Flying Spur Speed — 600 hp
2009 Bentley Continental GT Speed — 600
2008 Dodge Viper SRT-10 — 600 hp
1993 Bugatti EB110 Supersport — 603 hp
2006 Maybach 57S and 62S — 604
2005 Mercedes-Benz SL65 AMG — 604 hp
2006 Mercedes-Benz S65 AMG — 604 hp
2005 Mercedes-Benz CL65 AMG — 604 hp
2004 Porsche Carrera GT — 605 hp
2007 Ferrari 599 GTB Fiorano — 611 hp

162 hp/liter is massive.

Not for a forced-induction engine. The new Porsche 918 has a N/A V8 that gets 130+ BHP/Liter.

Well, yeah. If I could afford a 918 I wouldn't be here. Maybe I should qualify my posts a little bit.

I'd like to think that if I had that kind of money I would still post here. It saddens me that you feel we are low-class people unworthy of the company of those that have money.

:p

lol nothing wrong with ebay turbos, just make sure everything is rebuilt and rebalanced and make sure you have a proper oil restrictor(if your setup calls for it) before installing ;)

it pretty much like buying and rebuilding a used turbo except without the worry of having to buy a new compressor wheel

I blew mine a while back.

I installed the turbo kit myself the first time. Then I got an exhaust leak and got lazy and had a shop pull it to change the gaskets on the headers. They weren't as careful on the routing of the vacuum lines for the boost controller. One of the vacuum lines got a hole burnt into it and the boost controller controlled no boost that day..and let's just say 16.6psi was more than the stock block could handle. Needless, to say I handled the installation of the new short block. Good shops are getting harder and harder to find these days.

https://lh6.googleusercontent.com/-T...o/DSCF1546.JPG

https://lh4.googleusercontent.com/-s...o/DSCF1556.JPG


https://lh5.googleusercontent.com/-S...o/DSCF1557.JPG

https://lh5.googleusercontent.com/-e...127_142044.jpg

Edited because I'm an idiot. Carry on

Man,

Those are some crazy pictures! The pleasure and the pain involved with this sport. FortuneLSX-TT, you are very right about good shops becoming hard to come by these days. I almost had a catastrophe myself because of shoddy exhaust work. Luckily GTM resolved much of this. I am a believer that excellent, not just good, installation and conservative tuning are key on these builds. Did you build your block (pistons, rods, etc) after this incident?

Nope, I just dropped in another stock block. Found a good deal on one. I will eventually be dropping in a built block. The price on parts for building the motor is just a hard pill to swallow compared to performance parts for other motors.

I'm not convinced that 17% loss is constant for 290whp and 500whp range of power. I think that loss is different at 500whp.

Your right, some energy loss is constant regardless of the over all power. Like your coolant and oil pumps.. However some losses are added and or proportionally increasing with adding FI, additional turbines, bearings, etc.

Unfortunately I don't see anyone testing the BHP output of a FI'd motor anytime soon. The best case is just a constant loss of around 60hp would be like 560bhp worst would be like 610bhp. Something in the in between would be most likely the best guess.

I'm thinking of a Stillen SC install over the winter. Totally unconcerned with reliability as I have no need to be the fastest 370Z in CT. I also have a quality shop to install it and tune it properly. 400whp is fine with me. Hell, my car is fast now. Looking forward to it.

Well, with the amount of money I blew on my setup, I drive her hard. GTM felt very confident letting her go at 550whp, who knows what she's making now on meth (they did that too). Tuning is super critical like everyone says. For what was an NA V6 to make this kind of power on stock internals is impressive. The 6MT, while I won't say is bullet proof handles the power just fine. If you didn't cut corners in the planning and don't get power hungry, you'll be fine (95% of the time)