Nissan Forum banner

1 - 13 of 13 Posts

·
Powered By hopes & dreams
Joined
·
8,328 Posts
run a search yet? Nobody....without custom work. And you expect exactly what in terms of gains?
 

·
Registered
Joined
·
121 Posts
correct me if I am wrong but the last I heard the spec already had pretty high comp
 

·
Powered By hopes & dreams
Joined
·
8,328 Posts
9.5:1 isn't pretty high.
 

·
Registered
Joined
·
43 Posts
Discussion Starter #5
Well mike, I guess I am more trying to make the internals stronger. I know that the actual gain will be slim....but alot of slim gains from doing alot of upgrades should equal more go than show. I am already above the 200whp mark but would like to get to 210 or even 220 in the near future. I just sent my other block (QR25) out to have it sleeved, I am looking for another spec to make a turbo set up. with that car I am just going to keep going til I reach the 400+whp mark. I know that with this motor I will never see whp like that but I guess I would really want to pick your brain as to who has the highest n/a spec-v besides Team RTR???!!!! I really want to hit maybe 325-335whp with nitrous. I have changed my nx set up to direct port with a controller, and have all the bolt-ons, plus I know every inch of the head both in and out!!!!!(port & poilshed & machined .003)
 

·
Powered By hopes & dreams
Joined
·
8,328 Posts
nobody had more n/a wihtout nitrous than RTR...because their engines cost more than $10,000 a pop and they'd be lucky to have it last an entire race.

Sleeving the block isnt' really necessary until, like you said, you reach 400whp, but just pistons and rods are good for at least that much without sleeving. but that's a lot of nitrous.
 

·
Powered By hopes & dreams
Joined
·
8,328 Posts
Pituala's QR25 ran, i think a 75 shot, but his went kaboomie.
 

·
Registered
Joined
·
871 Posts
chimmike said:
Pituala's QR25 ran, i think a 75 shot, but his went kaboomie.
Yes, and he took precautions too. I would say that you will be hard pressed to ever get up to a 100 shot. Are you running 50 right now?
 

·
Registered
Joined
·
43 Posts
Discussion Starter #11
I am running a 16 on the nitrous side and a 12 on the fuel side... I think that is a 100 shot. This set up has been tuned on a mustang dyno!!!!!
 

·
Registered
Joined
·
871 Posts
Tick, tick, tick, tick

Is that a timebomb I hear.

Have you ever seen the QR25 internal, I'm thinking rods in particlular?
 

·
Registered
Joined
·
43 Posts
Discussion Starter #13
Yes I have taken 3 QR25 motors apart, that is why I posted this is because I want stronger rods and better pistons!!! :hal:
 
1 - 13 of 13 Posts
Top