Oh what have i done???
P11GT
02-11-2002, 08:55 PM
Got my Primera back today, complete with oil leak, due to a faulty weld on the sump tray, anyways, new one on order. The cars at 8.3:1 compression ratio and i need to clock up 1k miles but it drives like a bag of spanners!! it doesnt accelerate!!! it just revs real slow and makes loadsa noise. im beginning to think why did i bother??:confused: but hopefully over the next few weeks, i should have done the miles, and then i can begin on the turbo install.
Yahnozha
02-11-2002, 09:17 PM
Originally posted by P11GT
it drives like a bag of spanners!!
Must be an European thing....
Hope you figure it out...
it drives like a bag of spanners!!
Must be an European thing....
Hope you figure it out...
Swonder67
02-11-2002, 09:29 PM
what's a spanner?
P10DET
02-11-2002, 09:58 PM
Originally posted by Swonder67
what's a spanner?
Well.... it's a spanner silly.
AKA open end wrench.
what's a spanner?
Well.... it's a spanner silly.
AKA open end wrench.
Yahnozha
02-11-2002, 10:53 PM
Originally posted by P10DET
AKA open end wrench.
And then theres these types of spanners....
http://files.automotiveforums.com/uploads/213373Spanner.jpg
AKA open end wrench.
And then theres these types of spanners....
http://files.automotiveforums.com/uploads/213373Spanner.jpg
speediva
02-12-2002, 12:23 AM
Originally posted by Yahnozha
And then theres these types of spanners....
Is it just me or do those thingymabobbers look kinda like the Egyptian embalming tools??? :confused:
And back on-track: I hope you can find good in what you think is bad! :)
And then theres these types of spanners....
Is it just me or do those thingymabobbers look kinda like the Egyptian embalming tools??? :confused:
And back on-track: I hope you can find good in what you think is bad! :)
P11GT
02-12-2002, 04:13 AM
hehe:D didnt realise you may not understand what i meant, better than saying that it drives like 'Sh*te!!'
G-Forces
02-12-2002, 09:23 AM
Originally posted by P11GT
hehe:D didnt realise you may not understand what i meant, better than saying that it drives like 'Sh*te!!'
That's OK you can say shite here. :D
It will all be worth it once you get the turbo in and installed. Trust me. :D
hehe:D didnt realise you may not understand what i meant, better than saying that it drives like 'Sh*te!!'
That's OK you can say shite here. :D
It will all be worth it once you get the turbo in and installed. Trust me. :D
v_knot
02-12-2002, 02:09 PM
What? Is this the process that all turbo-wannabes have to go through to get the best end performance? Or is this only for those adventurous and risk taker, ahem P11GT, who wants to lower their compression ratio? Please tell me it's the latter....
P11GT
02-12-2002, 05:19 PM
The US spec SR20 are 9.5:1 compression, whereas the Euro Spec ones are 10:1, which is why ours are a little bit quicker than yours:ylsuper but the drawback is that when it comes to turbocharging, 10:1 is far too high, so in order to make the car run reliably and with a reasonable amount of boost, ive opted to lower the compression. 8.3:1 was just a figure i chose because its the same as a SR20DET (GTiR) and therefore, i should be able to run 10 psi no probs or even maybe upto 1 bar. Its for peace of mind.
If youre gonna do it............ do it right, first time.
If youre gonna do it............ do it right, first time.
AznVirus
02-12-2002, 10:34 PM
get your turbo in quick :D is it running slow cause of the oil leak?
v_knot
02-13-2002, 08:10 AM
Originally posted by P11GT
The US spec SR20 are 9.5:1 compression, whereas the Euro Spec ones are 10:1, which is why ours are a little bit quicker than yours:ylsuper but the drawback is that when it comes to turbocharging, 10:1 is far too high, so in order to make the car run reliably and with a reasonable amount of boost, ive opted to lower the compression. 8.3:1 was just a figure i chose because its the same as a SR20DET (GTiR) and therefore, i should be able to run 10 psi no probs or even maybe upto 1 bar. Its for peace of mind.
If youre gonna do it............ do it right, first time.
I completely agree that getting everything right the first time is viable.
Question for you all....will it be safe to run a 10 psi boost on a 9.5:1 compression ratio? Rumour has it that running a 10 psi boost is risky. I've heard someone mentioned that they run at 11.25 psi boost without a problem. Is this true?
The US spec SR20 are 9.5:1 compression, whereas the Euro Spec ones are 10:1, which is why ours are a little bit quicker than yours:ylsuper but the drawback is that when it comes to turbocharging, 10:1 is far too high, so in order to make the car run reliably and with a reasonable amount of boost, ive opted to lower the compression. 8.3:1 was just a figure i chose because its the same as a SR20DET (GTiR) and therefore, i should be able to run 10 psi no probs or even maybe upto 1 bar. Its for peace of mind.
If youre gonna do it............ do it right, first time.
I completely agree that getting everything right the first time is viable.
Question for you all....will it be safe to run a 10 psi boost on a 9.5:1 compression ratio? Rumour has it that running a 10 psi boost is risky. I've heard someone mentioned that they run at 11.25 psi boost without a problem. Is this true?
P10DET
02-13-2002, 08:21 AM
Originally posted by v_knot
I completely agree that getting everything right the first time is viable.
Question for you all....will it be safe to run a 10 psi boost on a 9.5:1 compression ratio? Rumour has it that running a 10 psi boost is risky. I've heard someone mentioned that they run at 11.25 psi boost without a problem. Is this true?
Same boost levels depend upon the turbo and other factors, but the biggest by far is the turbo. I can assure you that running 10 psi with a T25 would be a disaster waiting to happen without lowering the compression. However, running 10 psi with a GT3037 would probably be just fine.
Why? Because of the efficiencies of the turbos in that range. I highly suggest reading Mike Kojima's Suck, Squish, Bang, Blow series. Turbocharging doesn't have to be difficult and mysterious, but you do need to do your homework.
I completely agree that getting everything right the first time is viable.
Question for you all....will it be safe to run a 10 psi boost on a 9.5:1 compression ratio? Rumour has it that running a 10 psi boost is risky. I've heard someone mentioned that they run at 11.25 psi boost without a problem. Is this true?
Same boost levels depend upon the turbo and other factors, but the biggest by far is the turbo. I can assure you that running 10 psi with a T25 would be a disaster waiting to happen without lowering the compression. However, running 10 psi with a GT3037 would probably be just fine.
Why? Because of the efficiencies of the turbos in that range. I highly suggest reading Mike Kojima's Suck, Squish, Bang, Blow series. Turbocharging doesn't have to be difficult and mysterious, but you do need to do your homework.
v_knot
02-13-2002, 08:41 AM
Originally posted by P10DET
I highly suggest reading Mike Kojima's Suck, Squish, Bang, Blow series. Turbocharging doesn't have to be difficult and mysterious, but you do need to do your homework.
You've have mentioned this on a number of occassions. Do you know the link?
I highly suggest reading Mike Kojima's Suck, Squish, Bang, Blow series. Turbocharging doesn't have to be difficult and mysterious, but you do need to do your homework.
You've have mentioned this on a number of occassions. Do you know the link?
P11GT
02-13-2002, 09:05 AM
yeah, we need a link, ive been on SE-R.net but can never seem to find what i want, and i cant figure the search page out either.
G-Forces
02-13-2002, 09:11 AM
There's no link. It was in a SCC mag about a year ago. I don't know the exact month sorry. :(
b-b00gie
02-13-2002, 09:18 AM
Actually it was in many issues... it was a long series.
I'm not sure if there was one every month, but I do know the last one was in Oct. 2001 I think there was 11 parts all together..
I'm not sure if there was one every month, but I do know the last one was in Oct. 2001 I think there was 11 parts all together..
b-b00gie
02-13-2002, 09:47 AM
If you are looking for the turbo lessons get yourself parts 8 through 11, here's a list of all of them...
Sport Compact Car Magazine http://www.sportcompactcarweb.com
Suck, Squish, Bang, Blow:
Aug 99: Part 1 "Killer engine basics from A to Z"
Dec 99: Part 2 "The inner workings of the intake and exhaust system"
Jun 00: Part 3 "Things that go bump in the night"
Sept 00: Part 4 "Secrets of the cylinder head"
Nov 00: Part 5 "Tune to win"
Mar 01: Part 6 "The reciprocating stuff"
Apr 01: Part 7 "Beefing up the bottom end"
Jul 01: Part 8 "Turbochargers the great equilizers"
Aug 01: Part 9 "Turbochargers vs. Superchargers"
Sep 01: Part 10 "Turbo math: picking the right size turbo"
Oct 01: Part 11 "The components of a turbo system"
Sport Compact Car Magazine http://www.sportcompactcarweb.com
Suck, Squish, Bang, Blow:
Aug 99: Part 1 "Killer engine basics from A to Z"
Dec 99: Part 2 "The inner workings of the intake and exhaust system"
Jun 00: Part 3 "Things that go bump in the night"
Sept 00: Part 4 "Secrets of the cylinder head"
Nov 00: Part 5 "Tune to win"
Mar 01: Part 6 "The reciprocating stuff"
Apr 01: Part 7 "Beefing up the bottom end"
Jul 01: Part 8 "Turbochargers the great equilizers"
Aug 01: Part 9 "Turbochargers vs. Superchargers"
Sep 01: Part 10 "Turbo math: picking the right size turbo"
Oct 01: Part 11 "The components of a turbo system"
G-Forces
02-13-2002, 09:58 AM
Damn you Brian! I was just going to post this! :D I went and got all my back issues with this series, going to reread them.
I'd suggest eveyone who's interested in modifying their engines to get and read this series. The cost of the mags is worth the articles alone. I'd like SCC to reprint all the articles together in one big supplement.
I'd suggest eveyone who's interested in modifying their engines to get and read this series. The cost of the mags is worth the articles alone. I'd like SCC to reprint all the articles together in one big supplement.
b-b00gie
02-13-2002, 10:30 AM
For some more GREAT article by Mike Kojima go to http://www.speedoptions.com and click on "Pro tips" start all the way back on the oldest page (page 12 currently) and start reading. There's tons of good stuff in there and Mike has written about 20 articles there. Best part is they are free!!!
G-Forces
02-13-2002, 11:10 AM
Shweet looks like they are chopping up the Suck, Squish, Bang, Blow series into bite sized chunks and posting them. Looks like they go up to around Part 7.
b-b00gie
02-13-2002, 11:17 AM
Not sure... Mike is actually submitting them. So I dont think he can reprint the same info because SCC owns it...
Might just be reworded...
Might just be reworded...
G-Forces
02-13-2002, 12:37 PM
Not at all. It's word for word. :D I just finished reading Part 1 in SCC then went and read his first submission. The opening paragraphs were exactly the same. It's just been chopped up over more parts.
b-b00gie
02-13-2002, 01:03 PM
Interesting... :p
G22DET
02-14-2002, 02:47 AM
if you only read one article this year, read "SSBB"
if you read two articles this year, read "SSBB" again.
if you read three articles this year, read "SSBB" again..
if you want to buy parts for your car, go to digitalracer.com...
if you read five articles this year, read "SSBB" again....
:D
if you read two articles this year, read "SSBB" again.
if you read three articles this year, read "SSBB" again..
if you want to buy parts for your car, go to digitalracer.com...
if you read five articles this year, read "SSBB" again....
:D
P11GT
02-14-2002, 05:12 AM
Hey Lukie !! Im still waiting for my SCC ?!?!?!?! Im finding it hard reading that !!!!:D
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