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4WDrift · 05-03-2002, 07:25 PM

What's up guys,

I was looking at heavythrottle's website, and they're putting together a kit that will put 320 HP to the wheels,  I was wondering, How many psi can the bottom end of the SR handle??  I know it's a very capable engine, but it seems when you up the boost that much stuff would start to break.

tristarx · 05-03-2002, 09:45 PM

It's trivial to say how much boost any motor can handle because imaginary 14psi on a T25 is not going to make the same power as 14psi on a T04/T3.

People most often look at how much HP a motor can hold before things starts breaking, and the general consensus for SR20DET is between 300-400rwhp.  The higher end of the HP spectrum certainly risk higher breakage and would require more safety add ons to prolong the longetivity of the motor (oil coolers, synthetic motor oils, high output radiator, cooling fan, precise engine fuel tuning, etc.).

Wayne
Phase 2

rotaryknight · 05-03-2002, 09:59 PM

</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (tristarx @ May 03 2002,10:45)</td></tr><tr><td id="QUOTE">It's trivial to say how much boost any motor can handle because imaginary 14psi on a T25 is not going to make the same power as 14psi on a T04/T3.

People most often look at how much HP a motor can hold before things starts breaking, and the general consensus for SR20DET is between 300-400rwhp. The higher end of the HP spectrum certainly risk higher breakage and would require more safety add ons to prolong the longetivity of the motor (oil coolers, synthetic motor oils, high output radiator, cooling fan, precise engine fuel tuning, etc.).

Wayne
Phase 2</td></tr></table><span id='postcolor'>
Good someone with knowledge.  The points made are correct and there is also the fuel.

More boost and and not enough fuel mean *pop*.  Also a larger IC will lower charge air temps but then fuel becomes an issue again.

Fuel is sooo important for turbo cars.  Well of course good tuning.

05-03-2002, 07:25 PM	#1
4WDrift Join Date: Mar 2002 Posts: 24 Trader Rating: (0) Feedback Score: 0 reviews	What's up guys, I was looking at heavythrottle's website, and they're putting together a kit that will put 320 HP to the wheels,  I was wondering, How many psi can the bottom end of the SR handle??  I know it's a very capable engine, but it seems when you up the boost that much stuff would start to break. __________________ '94 LT1 Z28...Bolt -on's, reprog'd ECU, and free mod's more to come if i keep it. stock= 265HP 325 ft/lbs +mods =----I want a Silvia SR20DET....maybe i'll build one *sold*

05-03-2002, 09:45 PM	#2
tristarx Leaky Injector Join Date: Nov 2001 Posts: 140 Trader Rating: (0) Feedback Score: 0 reviews	It's trivial to say how much boost any motor can handle because imaginary 14psi on a T25 is not going to make the same power as 14psi on a T04/T3. People most often look at how much HP a motor can hold before things starts breaking, and the general consensus for SR20DET is between 300-400rwhp.  The higher end of the HP spectrum certainly risk higher breakage and would require more safety add ons to prolong the longetivity of the motor (oil coolers, synthetic motor oils, high output radiator, cooling fan, precise engine fuel tuning, etc.). Wayne Phase 2 __________________ Wayne[br]http://www.phase2motortrend.com

05-03-2002, 09:59 PM	#3
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 (tristarx @ May 03 2002,10:45)</td></tr><tr><td id="QUOTE">It's trivial to say how much boost any motor can handle because imaginary 14psi on a T25 is not going to make the same power as 14psi on a T04/T3. People most often look at how much HP a motor can hold before things starts breaking, and the general consensus for SR20DET is between 300-400rwhp. The higher end of the HP spectrum certainly risk higher breakage and would require more safety add ons to prolong the longetivity of the motor (oil coolers, synthetic motor oils, high output radiator, cooling fan, precise engine fuel tuning, etc.). Wayne Phase 2</td></tr></table><span id='postcolor'> Good someone with knowledge.  The points made are correct and there is also the fuel. More boost and and not enough fuel mean pop.  Also a larger IC will lower charge air temps but then fuel becomes an issue again. Fuel is sooo important for turbo cars.  Well of course good tuning. __________________ 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.