Blown engines running meth

awdmonsta · 03-20-2007, 08:51 AM

Just curious of how many engines you guys have blown have also been running meth.

I destroyed my rods with 450whp on stock block with pistons and coolingmist meth setup. Trying to decide to keep the meth or ditch it.

B4RSTiwsnc · 03-20-2007, 08:55 AM

how much boost were you running, and did the meth freeze up?

***VSGTS14*** · 03-20-2007, 09:05 AM

the meth isn't what blew your motor, the fact you had 450whp on the stock block did with high boost probably?

450whp will definately kill the block eventually.

**Interior Flaire** · 03-20-2007, 09:11 AM

Quote:

Originally Posted by VSGTS14

the meth isn't what blew your motor, the fact you had 450whp on the stock block did with high boost probably?

450whp will definately kill the block eventually.

The only safe stock block to my knowledge is 400whp. 350 for good measure.

CB

B4RSTiwsnc · 03-20-2007, 09:12 AM

i dynoed sat at 409awhp 25psi on 93 plus meth, and the AFR's were in the mid 10's so it was running pig rich, it will be retuned soon and theres a good 50-100whp in there at the same boost levels

awdmonsta · 03-20-2007, 10:18 AM

Was running 26psi with the meth on 93 octane. I think I just had too much power for the stock rods. But I know meth is supposed to be corrosive so I'm just wondering if it's possible that meth can weaken a motor. I was around 10.8 a/f

Chris05STi · 03-20-2007, 10:25 AM

No way was it meth..........plus it all burns up when it goes in......basically makes you run 100+ Octane levels...at that power level, you were asking for it eventually. Get forged internals and keep the meth and that big bright smile everytime you smash the gas pedal

!

awdmonsta · 03-20-2007, 10:32 AM

Probablem now is saving the money for the new setup. Going to take forever! I want atleast a stage 3 block, race bearings, headwork, etc. Probably going to go with a 35r this time so that I don't have to push the car so hard.

twigg107 · 03-20-2007, 11:23 AM

have you cracked the blown motor open yet? I dont see how people drop $6-8k on a new motor, when they can re-use the blown one and build it alot cheaper.

awdmonsta · 03-20-2007, 11:44 AM

Well there is a huge hole on top and bottom of the block. Trust me it's gone hahhahaaha.

I'm going to split it open this weekend and take a look and see if i can figure out what happened.

forgedSTi · 03-20-2007, 11:50 AM

sounds like what happened to me: 93 + meth + 25psi + 470 whp + stock block + spot of bad gas (maybe?) = broken rod + big hole in the case

you'd better have your heads looked at/reconditioned. there's a really good chance the piston banged it pretty good when the rod broke.

10rtim · 03-20-2007, 11:52 AM

What year sti?

awdmonsta · 03-20-2007, 12:08 PM

Quote:

Originally Posted by forgedSTi

sounds like what happened to me: 93 + meth + 25psi + 470 whp + stock block + spot of bad gas (maybe?) = broken rod + big hole in the case

you'd better have your heads looked at/reconditioned. there's a really good chance the piston banged it pretty good when the rod broke.

2005 STI

It was running pretty good after getting the injectors cleaned. Then I got gas that day and the rough idle came back and blew later that afternoon. We suspected bad gas also. But really no way to prove it.

Visually we looked at the heads and they look ok. Tech poured some kind of liquid into the ports and it didn't leak from the valves so we're just putting them back on.

10rtim · 03-20-2007, 12:20 PM

How many miles and how many miles at the 450whp?

twigg107 · 03-20-2007, 12:55 PM

Quote:

Originally Posted by awdmonsta

Well there is a huge hole on top and bottom of the block. Trust me it's gone hahhahaaha.

I'm going to split it open this weekend and take a look and see if i can figure out what happened.

ohh....That suck!! I guess that would do it.

It usually pretty hard to do that much damage to an sti block.

03-20-2007, 08:51 AM	#1
awdmonsta STI Driver Posts: 212 Join Date: Feb 2006 Trader Rating: (0)	Blown engines running meth Just curious of how many engines you guys have blown have also been running meth. I destroyed my rods with 450whp on stock block with pistons and coolingmist meth setup. Trying to decide to keep the meth or ditch it. This ad is not endorsed by this member. Please register or login to hide this ad.

03-20-2007, 10:25 AM	#7
Chris05STi I Has a Turbo Timer Car: 2005 Subaru WRX STi Fav Mod: Every single one! Location: NJ Posts: 9,701 Join Date: Jun 2005 Trader Rating: (27)	No way was it meth..........plus it all burns up when it goes in......basically makes you run 100+ Octane levels...at that power level, you were asking for it eventually. Get forged internals and keep the meth and that big bright smile everytime you smash the gas pedal!

03-20-2007, 08:55 AM	#2
B4RSTiwsnc Spec C Club Car: 04 Aspen White STi Fav Mod: exhaust powered intake Location: Charlotte/Winston Salem, Posts: 1,310 Join Date: Jul 2006 Trader Rating: (6)	how much boost were you running, and did the meth freeze up?

03-20-2007, 09:05 AM	#3
*VSGTS14* Muller Chevrolet Car: 08 Chevy 2500HD Fav Mod: a new 08 STi Location: Milford, NJ Posts: 9,984 Join Date: Oct 2004 Trader Rating: (11)	the meth isn't what blew your motor, the fact you had 450whp on the stock block did with high boost probably? 450whp will definately kill the block eventually.

03-20-2007, 09:12 AM	#5
B4RSTiwsnc Spec C Club Car: 04 Aspen White STi Fav Mod: exhaust powered intake Location: Charlotte/Winston Salem, Posts: 1,310 Join Date: Jul 2006 Trader Rating: (6)	i dynoed sat at 409awhp 25psi on 93 plus meth, and the AFR's were in the mid 10's so it was running pig rich, it will be retuned soon and theres a good 50-100whp in there at the same boost levels

03-20-2007, 10:18 AM	#6
awdmonsta STI Driver Posts: 212 Join Date: Feb 2006 Trader Rating: (0)	Was running 26psi with the meth on 93 octane. I think I just had too much power for the stock rods. But I know meth is supposed to be corrosive so I'm just wondering if it's possible that meth can weaken a motor. I was around 10.8 a/f

03-20-2007, 10:32 AM	#8
awdmonsta STI Driver Posts: 212 Join Date: Feb 2006 Trader Rating: (0)	Probablem now is saving the money for the new setup. Going to take forever! I want atleast a stage 3 block, race bearings, headwork, etc. Probably going to go with a 35r this time so that I don't have to push the car so hard.

03-20-2007, 11:23 AM	#9
twigg107 Spec C Club Car: 08 DGM STI Fav Mod: Me..... Location: Vancouver, Wa Posts: 1,522 Join Date: Jun 2006 Trader Rating: (1)	have you cracked the blown motor open yet? I dont see how people drop $6-8k on a new motor, when they can re-use the blown one and build it alot cheaper.

03-20-2007, 11:44 AM	#10
awdmonsta STI Driver Posts: 212 Join Date: Feb 2006 Trader Rating: (0)	Well there is a huge hole on top and bottom of the block. Trust me it's gone hahhahaaha. I'm going to split it open this weekend and take a look and see if i can figure out what happened.

03-20-2007, 11:50 AM	#11
forgedSTi all bOOst Car: pwn3d by bambi Fav Mod: dual catch high performance pcv system Location: in front of you. ;) Posts: 1,282 Join Date: Jun 2005 Trader Rating: (4)	sounds like what happened to me: 93 + meth + 25psi + 470 whp + stock block + spot of bad gas (maybe?) = broken rod + big hole in the case you'd better have your heads looked at/reconditioned. there's a really good chance the piston banged it pretty good when the rod broke.

03-20-2007, 11:52 AM	#12
10rtim Junior STI Driver Car: 05 sti Location: Louisville,KY Posts: 72 Join Date: Mar 2006 Trader Rating: (1)	What year sti?

03-20-2007, 12:20 PM	#14
10rtim Junior STI Driver Car: 05 sti Location: Louisville,KY Posts: 72 Join Date: Mar 2006 Trader Rating: (1)	How many miles and how many miles at the 450whp?