rev210

Those R8 things in the manual form can't break 14's at the real dragstrip. The tests quoted by magazines are based on a g-tech so they are very optimistic.

K&N panel filter is good.

You ought to do quite well. I had exhaust, K&N panel filter,KCA349 whiteline kit, 100kgs of work gear in the boot and 10psi and ran 13.8's on 205 tyres.

the td06 isn't a bad turbo either

Buster, The 60ft time is more an indication of good traction not at all bottom end power, you leave the line with revs the more you can hold onto with the tyres the better. Given you had a marginally better launch, eastern creek or not, and a lower terminal speed, you where (perhaps only on that day) making less average power than the R34GTT if the R34 weighs the same as your car and not less. Also if the temperature and altitude factors where about the same. Here in australia all the strips are about the same elevation I believe. In the old days ravenswood dragstrip (now gone) used to be a few metres below sea level from memory. Eastern creek is can be bad for a launch some days, the day of you low 12 you did pretty well though.

I'm thinking not till next friday if it's road freight. Thats if I get the order in by tuesday. Really depends on the insurance assesor not being a wanker.

I may require a mild cam shaft set for the engine rebuild. Any ideas for a brand and quick supply. The intake cam needs VCT, for a stock ecu.

Greg at rocket industries just gave me a price of $1247 inc GST for the arias forgies. Looks like I have to wait till monday to see what the assesor thinks.

you don't have the old R34 stock intercooler still do you? I might need one for the insurance repair.

Sorry I think we got mixed up a bit on this one. I was talking nitto drag tyres. By the sounds of things the nitto street tyres are very good indeed (only just looked at your thread). Very interesting to see the retail damage on them new.

That would be great. Oversized 20thou or standard is fine,

Nah true that. Rocket industries flog Arias for about $1280ex , on low volume purchases (like just one set) pricing is alot keener if you setup an account or buy regularly. They come with rings and pins as well though. Have to be the best forged piston spec I've seen and they are the cheapest.

Steve, Sorry should have said that the $900 was for cast ones, without rings. I am looking for a forged set as close to $900 as possible, more importantly is getting the sooner rather than cheaper because the insurance co. is paying. Butters, The engine was damaged in the accident as the timing belt was cut and valves bounced off the top of pistons. The dodgy insurance company wanted to just replace one piston and leave it at that. I explained to them that the other pistons must have also recieved damage and addtional stress since the engine was under load and doing several thou rpm. I am insisting they also replace the camshafts and valves since the forced of contact on the piston is transfered through to the cam lobe. I want nothing less than a proper engine rebuild and thats just what I am getting. While I think of it whats the damage on a set of mild camshafts to suit & where do you get them from?

One is a track tyre with stiff sidewalls the other is a drag tyre. The drag tyres are crap in the wet as you would expect from any drag tyre. I'd rather go a RE540 than the nitto as an in between.

I'm in the middle of rebuilding the RB25 and I need to find an alternative to waiting two weeks for pistons. The mechanic is buying them so I guess any contact people have to get a set for around $900 trade would be great.

Phantom (the), I guess the world of real race cars escapes your notice , I think you will find all bar none use a light flywheel (actually a very light one).Turn your calcualtions to inertia in 1st gear, and how this effects accelleration, you'll see what I mean.

nitto's don't have any grip in the wet either.

The correct attitude to power is: MOre pleAse

Paul make them the same size for now. As long as they are lighter thats what we really want.

try the bfg drag radial TA, they are a better and cheaper tyre. vpwmailorder.com

sydneykid, do have a pic of the 120 degree bend mod anywhere?

Not Wierd. Just informed. The Factory cooler is not a wonderful unit. It is however, along with it's piping a low volume and 'short path' system. Making the actual time taken to fill the pipes again with boost that much less than some of the larger ic setups. Although it's not hard to make greater peak power, it is tricky to translate that into an equal response time. Response time = accelleration time. The factory cooler provides a bottle neck at boost above 12psi but really the factory turbo is able to produce excellent power at this boost level, as seen in the example of Gus and his car making over the 200rwkw mark. I think it is possible to design a better intercooler more suited to the factory turbo and retain the responsiveness. At the end of the day I like to squeeze as much out of the factory system as possible, it's cheaper that way and you know you have improved 'the system' so that when and if I swapped the intercooler the gain will be higher. The intercooler piping on the factory silvia is an issue, on the skyline it really isn't.

the RB motors are NVH's not balancers. Hence the internal balance of the engine is super critical. So in this situation we are cool.

I did my times at the strip when it was high 30's temp wise. So I don't see the problem with our summer heat.

I think we are getting the pulleys confused with the harmonic dampers found on some V6 / V8 engines. "Harmonic Balancer" is a term that is used loosely in the automotive industry. Technically, this type of device does not exist. The "balancer" part comes from engines that are externally balanced and have a counterweight cast into the damper, hence the merging of the two terms. None of the applications that we are talking about utilize a counterweight as part of the pulley as these engines are internally balanced. The pulleys on most of the new import and smaller domestic engines have an elastomer (rubber ring) incorporated into the pulley that looks similar to a harmonic damper. The elastomer in the OEM pulley serves as an isolator, which is there to suppress natural vibration and noise from the engine itself, the A/C compressor, P/S pump, and alternator. This is what the manufacturers call NVH (Noise Vibration & Harshness) when referring to noticeable noise and vibration in the passenger compartment. It is important to note that in these applications, this elastomer is somewhat inadequate in size, as well as life span, to act as an effective torsional damper. If you look at the pulleys on some of the imports there is no rubber to be found at all. Most who have installed and driven a vehicle with pulleys will notice the engine actually feels smoother. This is a natural result of replacing the heavy steel crank pulley with a CNC-machined aluminum pulley. NVH is variable and unique to every car. NVH will increase with the installation of an aftermarket intake and/or exhaust, for example. Think of OEM intake systems in newer cars, they use baffles and resonators in the intake to quiet all the intake noise. Aftermarket intakes eliminate these resonators and create dramatic increases in engine noise from the throttle opening and closing. So to most tuners, certain types of NVH can make the driving experience more enjoyable. The purpose of a traditional harmonic damper is to protect against crank failure from torsional movement. This is not necessary in most modern engines because of the many advances in engine design and materials. Factors such as stroke, displacement, inline, V configurations, power output, etc., do determine when and how these harmonics and torsional movements occur. Again, there is a lot of internet hearsay about the pulleys. When motor failures occur, too often people are quick to blame the pulley first, rather than taking the time to look logically into why there was a problem. Here's a few examples of successful front pulley change overs on 6 cyl: BMW M series , 5 series, Audi A6 ,Toyota the whole range of 6's found in supras including NA's and turbo's. This is a small sample of the straight 6's that can live without the harmonic balancer. All have had the front pulley replacement and none have had premature bearing failure as a direct result. Food for thought.