257whp 261whtq

nvmsp said:
i hope my current issue isn't what is swaying you from avoiding the microtech b/c its a great unit.


So what exactly is causing the problems, the tune? It can't just be your spark plugs.... ?

You were running 15psi and now your having problems at 8-11psi, maybe I missed something, correct me if I'm wrong.[/quote]

Yeah but he was running 15-16 psi on the Microtech before without pinging, so thats not the problem.
 
kicker22705 said:
So what exactly is causing the problems, the tune? It can't just be your spark plugs.... ?

You were running 15psi and now your having problems at 8-11psi, maybe I missed something, correct me if I'm wrong.

its not that simple because the last time i tuned for 15psi it was a much cooler day in february as to the past couple days which as reached over 100. also when he tuned for my 15psi in february he could only detect audible pinging b/c he didn't have a knock amp. This time he does so he can detect it long before it becomes audible.

turfburn also said i was using the wrong plugs, so i jus got the ones he suggested, the ngk brk6e. i'm gonna give these and shot and monitor my egt since i don't have a knock amp. i'll keep you guys updated.[/quote]

Hey Mike how high was your egt? And are you going to be going back after the new plugs? I know tuning is $$$$$$. Good luck
 
Ok, well I hope you get it figured out. I'm down here in Fla and so is TBK, so thats why I'd go with Haltech since they know how to tune it, and we've seen what their cars can do.

I just hope you don't blow your built motor man, good luck.
 
Hey Mike how high was your egt? And are you going to be going back after the new plugs? I know tuning is $$$$$$. Good luck

luckily i wans't charged for today's dyno session, andi was on the dyno for a good 2-3 hours. made over 30 passes.

my egt from what i noticed during the street tune never got hotter than 700 degress celcius.

nvmsp said:
Ok, well I hope you get it figured out. I'm down here in Fla and so is TBK, so thats why I'd go with Haltech since they know how to tune it, and we've seen what their cars can do.

I just hope you don't blow your built motor man, good luck.

thanks man. I heard a lot of good things about TBK. if i lived there i'd take mine there too, and it would only make sense to use what they know best.

i just didn't want you to take my one experience and think poorly of microtech b/c it does what its told, and does it quite well.
 
Last edited:
kicker22705 said:
luckily i wans't charged for today's dyno session, andi was on the dyno for a good 2-3 hours. made over 30 passes.

That's a good chunk of change you saved there.(rockon)

kicker22705 said:
thanks man. I heard a lot of good things about TBK. if i lived there i'd take mine there too, and it would only make sense to use what they know best.

He can tune any system, they have been with Haltech for MANY years but he can still work his magic on other stand alones. Where is Mechanicsburg?
 
You always say you have ignition rtarded, but how much? whats the total timing?Whats the crank trigger angle setup in the microtech?

Also, if you are running long rod, it will need more retard.
 
Last edited:
yeah i saw that kit, looks like a good kit but its not something i want at this moment. i want to figure out whats causing the pinging first b/c i shouldn't have to be relying on meth/race fuel to prevent pinging at boost levels this low w/ my setup.

after talking to a few people it seems like the problem may be stemming from the high compression on my engine. althought i have 8.5:1 pistons, my compression test showed 210psi. i think the head and/or block may have been milled because i did have some headwork done. i have to make some calls on monday to know for sure.
 
kicker22705 said:
yeah i saw that kit, looks like a good kit but its not something i want at this moment. i want to figure out whats causing the pinging first b/c i shouldn't have to be relying on meth/race fuel to prevent pinging at boost levels this low w/ my setup.

after talking to a few people it seems like the problem may be stemming from the high compression on my engine. althought i have 8.5:1 pistons, my compression test showed 210psi. i think the head and/or block may have been milled because i did have some headwork done. i have to make some calls on monday to know for sure.

On the bight side you almost made as much power @12psi as you did @15. But alot of the other people on the forums that have 8.5:1 are running alot more boost that you are and no pinging issues. Make me wonder if I should go down to 8.3:1 or even 8.0:1 like Rob (joka1).
 
210 compressor could also mean that you have good ring sealing. i think the max this engine does with 9:1 is 210 as a stock engine.
 
Isn't Wiesco notorious for sending pistons in the wrong compression? I could see how the head work could cause a higher compression good thing to keep in mind.
 
03.5MSP said:
On the bight side you almost made as much power @12psi as you did @15. But alot of the other people on the forums that have 8.5:1 are running alot more boost that you are and no pinging issues. Make me wonder if I should go down to 8.3:1 or even 8.0:1 like Rob (joka1).

i dont' think you need to, there are people running 9:1 making over 300whp, 8.5:1 should be fine.

igdrasil said:
210 compressor could also mean that you have good ring sealing. i think the max this engine does with 9:1 is 210 as a stock engine.

so looks like i'm still really high since i'm 210-220 w/ 8.5

avarela86 said:
Isn't Wiesco notorious for sending pistons in the wrong compression? I could see how the head work could cause a higher compression good thing to keep in mind.

oh i hope thats not wiseco. even is if they are i would imagine beau at MAM would have caught it.

and mechanicsburg is right by Harrisburg, PA.
 
Last edited:
i checked w/ the dealership regarding the head and they're telling me the head wasn't milled. Even if it was, only thousands of an inch would have been taken off which wouldn't mess w/ my compression that dramatically.

I'm most likely going to go with a thicker cometic head gasket to lower the compression.
 
i checked w/ the dealership regarding the head and they're telling me the head wasn't milled. Even if it was, only thousands of an inch would have been taken off which wouldn't mess w/ my compression that dramatically.

I'm most likely going to go with a thicker cometic head gasket to lower the compression.


Good stuff man. You are making some REALLY good power though at such low PSI. I will be using the thicker one as well. Sitting in the garage...We are gonna have the SAME engine.(thumb)
 
Good stuff man. You are making some REALLY good power though at such low PSI. I will be using the thicker one as well. Sitting in the garage...We are gonna have the SAME engine.(thumb)

thanks, i'm pretty satisfied w/ the results as well for 11psi. the car pulls very hard in every gear. I've actually been monitoring my spark plugs quite often and there hasn't been any signs of detonation since i switched over to a brand new set of BKR7E's but i won't know for sure w/o a knock amp.

I think its a good idea you're going to use a thicker gasket. The extra headroom will be nice to have. you're going to love the engine. the peace of mind alone will make it that much more fun to drive.
 
where you getting the gasket? IM going 8.5 with long rod too.

i'm looking at the cometic at crossovermotorsport. just gotta figure out which thickness i need.

i'm glad to hear more people are going w/ similar setups. more people to compare notes with :)
 
Yeah, even with my engine pinging like crazy, somehow I manage to still trust it. I should get this engine thing in the works sooner before I zoom zoom boom. Time to get the block machined and prepped.
 

New Threads and Articles

Back