SR20DET Question - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

/etc/shadow · 07-03-2002, 09:00 AM

Does the S13 SR20DET Red-Top come with a wastegate?

uiuc240 · 07-03-2002, 09:13 AM

well, the stock SR20DET turbo is an internally-gated Garrett T25, so yes, the wastegate will be there.  

Eric

/etc/shadow · 07-03-2002, 09:26 AM

Is it a mechanical or electronic model? How safe is it to add a mechanical boost controller (just worried about overboost)

uiuc240 · 07-03-2002, 09:31 AM

Wastegates are all "mechanical".  They are operated by boost pressure opening a spring/valve which allows exhaust pressure to be released, thereby controlling the amount of boost the turbo produces.  A boost controller will be fine for the stock wastegate.  You just hook it up to the actuator and boost away.

Keep in mind that the stock turbo is only good to MAYBE 14 psi.  Mine is at 10 psi right now, and above about 6 grand, it's not making much power...lots of hot air.

Eric

rotaryknight · 07-03-2002, 09:31 AM

</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (/etc/shadow @ July 03 2002,10:26)</td></tr><tr><td id="QUOTE">Is it a mechanical or electronic model? How safe is it to add a mechanical boost controller (just worried about overboost)</td></tr></table><span id='postcolor'>
All wastegates are mechanical.  Only the way that the pressure line is altered is mechanical or electrically controlled.

Got to Amazon.com and go buy a book called Maximum Boost by Corkey Bell.   This will answer all your questions.

/etc/shadow · 07-03-2002, 09:51 AM

</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (rotaryknight @ July 03 2002,10:31)</td></tr><tr><td id="QUOTE"></span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (/etc/shadow @ July 03 2002,10:26)</td></tr><tr><td id="QUOTE">Is it a mechanical or electronic model? How safe is it to add a mechanical boost controller (just worried about overboost)</td></tr></table><span id='postcolor'>
All wastegates are mechanical. Only the way that the pressure line is altered is mechanical or electrically controlled.

Got to Amazon.com and go buy a book called Maximum Boost by Corkey Bell. This will answer all your questions.</td></tr></table><span id='postcolor'>
Thanks for the book suggestion, I just ordered it. Any other good ones about engine technology you can recommend?

Nitrous242 · 07-10-2002, 05:14 PM

hey i know im a little late but i was just reading through and wanted to give you props on actually buying a book.
  i know im a "newb" on this forum, but ive been many other places and i knwo a lot about turboing/upgrading dsm's especially, and i never see ppl who dont know much actually buy a book.  most newbs just try to act like they know everything.   so my acknowledgements.    <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/biggrin.gif" border="0" valign="absmiddle" alt='

'>  <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/wink.gif" border="0" valign="absmiddle" alt='

'>

07-03-2002, 09:13 AM	#2
uiuc240 Nissanaholic! Join Date: Apr 2002 Location: Naperville, IL Age: 46 Posts: 2,093 Trader Rating: (0) Feedback Score: 0 reviews	well, the stock SR20DET turbo is an internally-gated Garrett T25, so yes, the wastegate will be there.   Eric __________________ 2002 Mazda Protege5 1989 S13 w/SR20DET (sold)

07-03-2002, 09:31 AM	#4
uiuc240 Nissanaholic! Join Date: Apr 2002 Location: Naperville, IL Age: 46 Posts: 2,093 Trader Rating: (0) Feedback Score: 0 reviews	Wastegates are all "mechanical".  They are operated by boost pressure opening a spring/valve which allows exhaust pressure to be released, thereby controlling the amount of boost the turbo produces.  A boost controller will be fine for the stock wastegate.  You just hook it up to the actuator and boost away. Keep in mind that the stock turbo is only good to MAYBE 14 psi.  Mine is at 10 psi right now, and above about 6 grand, it's not making much power...lots of hot air. Eric __________________ 2002 Mazda Protege5 1989 S13 w/SR20DET (sold)

07-03-2002, 09:31 AM	#5
rotaryknight Zilvia Junkie Join Date: Apr 2002 Posts: 408 Trader Rating: (0) Feedback Score: 0 reviews	</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (/etc/shadow @ July 03 2002,10:26)</td></tr><tr><td id="QUOTE">Is it a mechanical or electronic model? How safe is it to add a mechanical boost controller (just worried about overboost)</td></tr></table><span id='postcolor'> All wastegates are mechanical.  Only the way that the pressure line is altered is mechanical or electrically controlled. Got to Amazon.com and go buy a book called Maximum Boost by Corkey Bell.   This will answer all your questions. __________________ Daily Driver- 91 240 SX SE...S13 Blacktop HKS FMIC, EVC IV, W/G, Racing Suction, DP, Dual Drager, springs/pillow ball mounts Whiteline sway bars Tokico blues Koyo Radiator, Fluidyne fan J30 VLSD stock exterior. Fun Car- 94 FD3S (TO4S). The White HKS FD in FnF......may she rest in pieces.

07-10-2002, 05:14 PM	#7
Nitrous242 Join Date: Jul 2002 Posts: 24 Trader Rating: (0) Feedback Score: 0 reviews	hey i know im a little late but i was just reading through and wanted to give you props on actually buying a book.   i know im a "newb" on this forum, but ive been many other places and i knwo a lot about turboing/upgrading dsm's especially, and i never see ppl who dont know much actually buy a book.  most newbs just try to act like they know everything.   so my acknowledgements.    <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/biggrin.gif" border="0" valign="absmiddle" alt=''>  <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/wink.gif" border="0" valign="absmiddle" alt=''>

07-03-2002, 09:00 AM	#1
/etc/shadow Zilvia Member Join Date: Jun 2002 Posts: 167 Trader Rating: (0) Feedback Score: 0 reviews	Does the S13 SR20DET Red-Top come with a wastegate?

07-03-2002, 09:26 AM	#3
/etc/shadow Zilvia Member Join Date: Jun 2002 Posts: 167 Trader Rating: (0) Feedback Score: 0 reviews	Is it a mechanical or electronic model? How safe is it to add a mechanical boost controller (just worried about overboost)

07-03-2002, 09:51 AM	#6
/etc/shadow Zilvia Member Join Date: Jun 2002 Posts: 167 Trader Rating: (0) Feedback Score: 0 reviews	</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (rotaryknight @ July 03 2002,10:31)</td></tr><tr><td id="QUOTE"></span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (/etc/shadow @ July 03 2002,10:26)</td></tr><tr><td id="QUOTE">Is it a mechanical or electronic model? How safe is it to add a mechanical boost controller (just worried about overboost)</td></tr></table><span id='postcolor'> All wastegates are mechanical. Only the way that the pressure line is altered is mechanical or electrically controlled. Got to Amazon.com and go buy a book called Maximum Boost by Corkey Bell. This will answer all your questions.</td></tr></table><span id='postcolor'> Thanks for the book suggestion, I just ordered it. Any other good ones about engine technology you can recommend?