sr20 Vs stock block - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

mjjstang · 04-24-2003, 06:34 PM

This is my first time posting here so please don't be too harsh on me. I have a question, my friend and I are finishing dropping a new engine in his 91 240 (same engine) and hes got the old one which we found out today is still good. (he will probably tell you guys about it) and I was thinking for a nice project to convert that engine into a pure race motor. Now I know the sr20 Is by far the most popular swap, and cheaper than rebuilding the stock engine, but couldnt you get more hp out of the stock block. It is .4 liters bigger . And isnt the sr20 an aluminum block which cant handle as much boost. I know the difference in weight is a concern but with the right internals wouldnt the original block be able to handle tons more boost. Im not talking about something that will take 2 months and cost 3 grand but something that he could work on for a few years in his garage, Then have a damn good sports car.

FastBack 240 · 04-24-2003, 06:48 PM

Its a 92' chief.

AKADriver · 04-24-2003, 07:45 PM

SR vs. KA is an argument almost as old as the 240SX itself.

It's ALL PREFERENCE. Both have their advantages.

That's not to say you shouldn't build the hell out of a spare KA if you've got one.

misnomer · 04-24-2003, 08:03 PM

Lemme boil it down:

SR20DET: High winding

KA24DE + turbo: torquey bitch.

Hit the search, you will find all sorts of lucious threads on this topic.

**mrmephistopheles** · 04-24-2003, 11:44 PM

Stick a fork in this thread... it's done!

Please search for threads in this vein. You'll find all the information you should need to decide.

*Jeff240sx* · 04-24-2003, 11:46 PM

And go to www.240sxTurboStyle.com for info on the KA turbo.
-Jeff
[/shameless plug]

04-24-2003, 06:34 PM	#1
mjjstang Post Whore! Join Date: Apr 2003 Location: Michigan Posts: 2,654 Trader Rating: (5) Feedback Score: 5 reviews	sr20 Vs stock block This is my first time posting here so please don't be too harsh on me. I have a question, my friend and I are finishing dropping a new engine in his 91 240 (same engine) and hes got the old one which we found out today is still good. (he will probably tell you guys about it) and I was thinking for a nice project to convert that engine into a pure race motor. Now I know the sr20 Is by far the most popular swap, and cheaper than rebuilding the stock engine, but couldnt you get more hp out of the stock block. It is .4 liters bigger . And isnt the sr20 an aluminum block which cant handle as much boost. I know the difference in weight is a concern but with the right internals wouldnt the original block be able to handle tons more boost. Im not talking about something that will take 2 months and cost 3 grand but something that he could work on for a few years in his garage, Then have a damn good sports car.

04-24-2003, 08:03 PM	#4
misnomer Nissanaholic! Join Date: Jul 2001 Location: Nevada Posts: 2,293 Trader Rating: (0) Feedback Score: 0 reviews	Lemme boil it down: SR20DET: High winding KA24DE + turbo: torquey bitch. Hit the search, you will find all sorts of lucious threads on this topic. __________________ Rowsdower saves us and saves all the world!

04-24-2003, 11:46 PM	#6
Jeff240sx I hate you too... Join Date: Jul 2001 Location: Tampa, FL Age: 42 Posts: 5,828 Trader Rating: (0) Rides Gallery: Jeff240sx Feedback Score: 0 reviews	And go to www.240sxTurboStyle.com for info on the KA turbo. -Jeff [/shameless plug] __________________ Whatup?

04-24-2003, 06:48 PM	#2
FastBack 240 Zilvia Addict Join Date: Dec 2002 Location: Motor City......MI Age: 39 Posts: 859 Trader Rating: (0) Feedback Score: 0 reviews	Its a 92' chief.

04-24-2003, 07:45 PM	#3
AKADriver Post Whore! Join Date: May 2002 Location: Springfield, VA Age: 43 Posts: 3,517 Trader Rating: (1) Feedback Score: 1 reviews	SR vs. KA is an argument almost as old as the 240SX itself. It's ALL PREFERENCE. Both have their advantages. That's not to say you shouldn't build the hell out of a spare KA if you've got one.

04-24-2003, 11:44 PM	#5
mrmephistopheles Magnanimous Justice Distribution Service Join Date: Mar 2002 Location: BFE Age: 23 Posts: 14,372 Trader Rating: (9) Rides Gallery: mrmephistopheles Feedback Score: 9 reviews	Stick a fork in this thread... it's done! Please search for threads in this vein. You'll find all the information you should need to decide.