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well with those mods you can expect to run a 13.3 on little unevenly inflated 205 tyres with a 2.3 60ft and only using 4500rpm (because you have a blocked injector). This will also be around 235rwhp or so with super rich afrs in the 9's. If you decided to swap the 205's for a set of decent 255's then with a 2.0 60ft you'll be doing 12.9's.

I ran 13.4 without the S-afc or the cam gear.

The great thing about the factory setup is the potential to squeeze more responsiveness out of it. Forget the fmic to being with, when you run out of engine response based mods or you go a bigger turbo then have a look at it.

Forget the fmic to being with, when you run out of engine response based mods or you go a bigger turbo then have a look at it.

Forget the FMIC ....

Do you forget what country we live in .... and what season is round the bend next ?

I may only have a lowly silvia, but my experience in cooler upgrades shows there is great power and consistancy to be gained.

40 degree days, foot flat, no ping, chopping skylines .......... Love it

hahaha :) :)

rev210

I have read along with great interest on your many posts regarding the stock cooler but i am still un convinced this is the way to go. I must admit you have me nearly convinced every time i finish reading a post but never completely. I am not trying to start another stock cooler argument just hoping you can shed some light on a few queries.

There has been much talk of quater mile times but how do you fare mid summer after say 4-5 traffic light duels on the trot with heat soak on the factory cooler?

is there any sighn of detonation ? a problem i had on my 180sx prior to a cooler upgrade.

Have you had your car on the race track ? and if so how did it go same question as above.

Again im not trying to have a shot just curious of your feed back as you seem to like driving your car and wondering how it fared under these conditions.

A question you have probably already answered but any way how much time off your quater do think you would lose by fitting a larger cooler( have you tested this or the presure drop across the factory cooler).

If a big cooler is so much worse, why is the factory gtr cooler so much bigger? asuming that its only .1 of a litre larger in cappacity

and has 2 turbos that would significantly decrease inlet temps(only an assumption).

Again just trying to clear up some things i have wondered.As i had fantastic gains down the quater when i fitted my front mount went from 14.1 to 13.7 no other changes.(was running 14psi both times)

regards

Beaumondt

Beaumondt,

Your too polite :P haha

I swapped my stock cooler for a truck core. Now if people don't like truck coolers, I can tell you its better than the stock one.

I gained around 20rwhp from cooler upgrade. Admitedly a lot of that was in the piping as well. But that is part of the cooler upgrade.

Now No doubt Rev210 has done well with stock core. End of the day its one example though. I don't know where else he has spent time, on tune, timing etc .....

Its a the standard mod's that are known to work well. Cooler, Zorst, Boost. They are Best bang for buck really. There also safe mod's for people not to sure on what there doing.

Rev210, nothing wrong with the Mod path you have taken.

ITS JUST WEIRD :)

Originally posted by Butters

Rev210, nothing wrong with the Mod path you have taken.  

ITS JUST WEIRD :P

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.

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