diy "turbo no hit block" '00 BP miata
#81
Junior Member
Thread Starter
Join Date: Nov 2013
Location: Sardinia, Italy
Posts: 396
Total Cats: 56
I've bought it because I think is pretty much a straight pipe with two chamber, there aren't restriction of any type, all internals are 2.5", and my exhaust is 2 1/4" (60mm)
All I want now is a silent exhaust, I can't drive with that loudness anymore...
Can it flow decently or is a very bad idea to put it on?
consider that I don't have any cat, resonator, nothing at all: only a 60mm straight pipe from the turbine to the muffler
source:
#82
Supporting Vendor
iTrader: (1)
Join Date: Sep 2010
Location: Lake Forest, CA
Posts: 7,976
Total Cats: 1,018
Can it flow decently? Sure. Is it optimal? Not even close. Can you get similar muffling with better performance? Yes.
The straight through Magnaflows are really what you want, that's why everyone here uses them. They're not as cheap as the "turbo" mufflers though.
The straight through Magnaflows are really what you want, that's why everyone here uses them. They're not as cheap as the "turbo" mufflers though.
#83
Moderator
iTrader: (12)
Join Date: Nov 2008
Location: Tampa, Florida
Posts: 20,884
Total Cats: 3,075
Look, yes, it will be quiet. Yes, it will slightly degrade performance. No, it won't be terrible. There have been plenty of quiet factory turbocharged cars that use the same style of muffler. Removing them usually makes the car spool faster and make a bit more power. But it isn't the end of the world. Just don't complain if you lose 10-15whp.
#85
Junior Member
Thread Starter
Join Date: Nov 2013
Location: Sardinia, Italy
Posts: 396
Total Cats: 56
^Paid infomercial.
Look, yes, it will be quiet. Yes, it will slightly degrade performance. No, it won't be terrible. There have been plenty of quiet factory turbocharged cars that use the same style of muffler. Removing them usually makes the car spool faster and make a bit more power. But it isn't the end of the world. Just don't complain if you lose 10-15whp.
Look, yes, it will be quiet. Yes, it will slightly degrade performance. No, it won't be terrible. There have been plenty of quiet factory turbocharged cars that use the same style of muffler. Removing them usually makes the car spool faster and make a bit more power. But it isn't the end of the world. Just don't complain if you lose 10-15whp.
shaved, back from the machine shop
my new toy
last but not least:
bammm, surprise!!!
internal diameter is now the same as the stock exhaust...
I have 2 choices
-remove the internal metal mesh
-remove the joint and weld a straight pipe
problems, problems everywhere
#91
Junior Member
Thread Starter
Join Date: Nov 2013
Location: Sardinia, Italy
Posts: 396
Total Cats: 56
#94
Junior Member
Thread Starter
Join Date: Nov 2013
Location: Sardinia, Italy
Posts: 396
Total Cats: 56
Then dna said, "Let there be track"; and there was overheat.
only one lap before hit 100°C, but the car was great!
I have a LOT to learn on a track, but next time I need at least a 50mm radiator.
Will this be ok?
http://www.ebay.it/itm/400763045502?...84.m1423.l2649
o this one is better?
http://www.ebay.it/itm/131099412197?...84.m1423.l2649
the most important thing is the slim fans: I have 2.5" intake line
only one lap before hit 100°C, but the car was great!
I have a LOT to learn on a track, but next time I need at least a 50mm radiator.
Will this be ok?
http://www.ebay.it/itm/400763045502?...84.m1423.l2649
o this one is better?
http://www.ebay.it/itm/131099412197?...84.m1423.l2649
the most important thing is the slim fans: I have 2.5" intake line
#95
Moderator
iTrader: (12)
Join Date: Nov 2008
Location: Tampa, Florida
Posts: 20,884
Total Cats: 3,075
100*C (212*F) is not overheating. That is normal. If it gets to 230*F then you must slow down and cool off.
External oil coolers are a good idea as well as the bigger radiator. I don't have any opinions about the two radiators you listed other than the fact that having a fan shroud is a good thing.
External oil coolers are a good idea as well as the bigger radiator. I don't have any opinions about the two radiators you listed other than the fact that having a fan shroud is a good thing.
#97
Junior Member
Thread Starter
Join Date: Nov 2013
Location: Sardinia, Italy
Posts: 396
Total Cats: 56
At the end of the second lap the temperature rises to 120°C (248*F)
I've only done a reroute and the radiator ducting, and on the road the maximum temperature I can see is 100°C
I really hope I can solve with a bigger core...
the oil cooler is really necessary? It's my daily car, I plan to go on track maximum 2-3 times a year
I've only done a reroute and the radiator ducting, and on the road the maximum temperature I can see is 100°C
I really hope I can solve with a bigger core...
the oil cooler is really necessary? It's my daily car, I plan to go on track maximum 2-3 times a year
#99
Moderator
iTrader: (12)
Join Date: Nov 2008
Location: Tampa, Florida
Posts: 20,884
Total Cats: 3,075
A larger core will help both in thermal capacity (more coolant volume takes longer to heat up) and in more surface area to aid in heat transfer.
An external oil cooler isn't a big deal to install if you've already done things like adding a reroute. They make a difference.
An external oil cooler isn't a big deal to install if you've already done things like adding a reroute. They make a difference.