Fat-Tony Member 5,364 Member For: 18y 7m 5d Posted 03/07/08 11:10 AM Share Posted 03/07/08 11:10 AM Doesn't it run the new PW stage 3 cooler? Link to comment Share on other sites More sharing options...
mic Donating Members 1,725 Member For: 16y 9m 8d Gender: Male Posted 03/07/08 11:19 AM Share Posted 03/07/08 11:19 AM Yeah I think its got the new process cooler. It has run 10.02 also. Link to comment Share on other sites More sharing options...
RegSpec Cruise Control 1,417 Member For: 17y 9m 28d Gender: Male Location: Macksville NSW. Posted 03/07/08 11:29 AM Share Posted 03/07/08 11:29 AM Fair enough....I can see how some people would get excited about a low ten second ride in a sedan.... However, just think about what 750 odd kws could do in a T bucket or rear engine dragster..... 750 kws in a car that weighs in about 750kgs comes out at high SIX second passes at over 320kmh ......that's over TWO HUNDRED MILES AN HOUR ....... How many people on this forum can say theyve driven over a double ton? Im stuffed if I know why noone has put an XR6T engine into of of these things yet... Link to comment Share on other sites More sharing options...
jsmith Donating Members 712 Member For: 17y 2d Gender: Male Location: Blacktown Posted 03/07/08 11:53 AM Share Posted 03/07/08 11:53 AM why cant they make these things rev then? How a motor revs is dependant on quite a few things but mainly a combination of bore Vs stroke ratio that also takes into account conrod length & piston and conrod weight (plus a few other things)If I was to build a Barra motor full on I would get forged pistons and conrods made as light as possible, also make the conrods slightly longer while moving the gudgeon pin higher to the crown of the piston to compensate the extra length. As we all know the ability to breath is a big issue so would get the head worked over as much as possible, this would most likely include enlarging the ports and valves while getting lighter valves made at the same time. There is not much that can be done about the stroke length unless you custom make a new crank but that's BIG $$$$$$ but getting a shorter stroke will definetly help the motor rev more. Make a lightweight flywheel and clutch assembly, lighten EVERY rotating mass and hopefully you will have a motor capable of reaching 7500-8000 RPM, possibly more reliably. These are basically the things that we have done to the motor in our sport sedan that has raised the redline of it's motor by 2800 RPM. Link to comment Share on other sites More sharing options...
Scubzz Member 24 Member For: 16y 8m 27d Gender: Male Location: Sydney- St George Posted 03/07/08 10:41 PM Share Posted 03/07/08 10:41 PM Sounds like to much work hahaha just through a vtec in it yo! Link to comment Share on other sites More sharing options...
Process West Member 248 Member For: 18y 4m 24d Gender: Male Location: Wollongong NSW Posted 04/07/08 02:12 AM Share Posted 04/07/08 02:12 AM Doesn't it run the new PW stage 3 cooler?Correct...also has my plenumKev Link to comment Share on other sites More sharing options...
AzMahoony Hench, but no longer shredded or tanned. Member 3,343 Member For: 17y 6m 28d Gender: Male Location: Canning Vale, W.A Posted 04/07/08 02:20 AM Share Posted 04/07/08 02:20 AM Is there any graphs of this?I wonder how much money was thrown at the car too haha Link to comment Share on other sites More sharing options...
IEATV8S Member 354 Member For: 17y 8m 20d Gender: Male Location: Albury, NSW Posted 04/07/08 02:39 AM Share Posted 04/07/08 02:39 AM (edited) Fair enough....I can see how some people would get excited about a low ten second ride in a sedan.... However, just think about what 750 odd kws could do in a T bucket or rear engine dragster..... 750 kws in a car that weighs in about 750kgs comes out at high SIX second passes at over 320kmh ......that's over TWO HUNDRED MILES AN HOUR ....... How many people on this forum can say theyve driven over a double ton? Im stuffed if I know why noone has put an XR6T engine into of of these things yet... I had planned to but one of these motors in a 67 Mustang Fastback but its on the back burner at the moment. I think the fastback is around 1200kg with the V8. Putting in the Turbo motor would be fantastic. Lighter weight car with a heap of power. Edited 04/07/08 02:41 AM by IEATV8S Link to comment Share on other sites More sharing options...
bcl Toughest BA Turbo Lifetime Members 3,408 Member For: 21y 10m 2d Gender: Male Location: Sydney Posted 04/07/08 02:57 AM Share Posted 04/07/08 02:57 AM How a motor revs is dependant on quite a few things but mainly a combination of bore Vs stroke ratio that also takes into account conrod length & piston and conrod weight (plus a few other things)If I was to build a Barra motor full on I would get forged pistons and conrods made as light as possible, also make the conrods slightly longer while moving the gudgeon pin higher to the crown of the piston to compensate the extra length. As we all know the ability to breath is a big issue so would get the head worked over as much as possible, this would most likely include enlarging the ports and valves while getting lighter valves made at the same time. There is not much that can be done about the stroke length unless you custom make a new crank but that's BIG $$$$$$ but getting a shorter stroke will definetly help the motor rev more. Make a lightweight flywheel and clutch assembly, lighten EVERY rotating mass and hopefully you will have a motor capable of reaching 7500-8000 RPM, possibly more reliably. These are basically the things that we have done to the motor in our sport sedan that has raised the redline of it's motor by 2800 RPM.My engine does rev to 7500 revs.At 7500 rpm your pistons are travelling at 24.83 meters/second (by my calcs), so there is enormous stress on rods and pistons, so these need to be extremely strong. The undersquare bore/stroke configuration doesn't help.Bad harmonics exist at high revs.Although I have a billet crank, if Simon (Nizpro) was doing it again he said he would make it heavier, not lighter.Stock head flows very well at 1000HP levels, so not much to be done.Block rigidity becomes an issue at higher rpm levels.Brian Link to comment Share on other sites More sharing options...
Dirty32 Legendary member!! Donating Members 1,739 Member For: 17y 9m 4d Gender: Male Location: Dianella, West Oz Posted 04/07/08 02:57 AM Share Posted 04/07/08 02:57 AM Sounds like to much work hahaha just through a vtec in it yo! Lol... havent heard that comment since I drove a skyline...Funny though!IEATV8S - Sounds like a good project... Would make for a very interesting drive. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now