N/A UPGRADE BIBLE.

[3startuna]

best mods for4 NA, intake full exhaust and Nitrous!

with that u can have a 14s car 13s possibly with a big 75 wet shot

All out NA build.
- the weakness with our cars is the heads, so port port port, Valve job, bigger valves, big cams 272. IPS valvetrain kit (you will need these for the following mods)
- ECU reflash 8500 rpm limit (with the head work done you can rev high safely)
- Forged rods and pistons, have these lightened and balanced.
- Pistons 12:1 at least
- 3sx pulley, RPS flywheel
- Custom ITBs with Velocity stacks
- AEM EMS
- Sheep racing DSM dog box

Give it 100 octane throw in timing and let it rev to all hell

OR

start with a 3.5L short block
Do everything above to it.

Then realize after spending upwards of 10K your still getting walked by VR4s and FWD TTs. An NA build is cool, but for the money you can do alot more with a turbo conversion. I wont lie though a NA built would sound so damn awesome

Heres an example of what it could sound like

http://www.youtube.com/watch?v=ZskAvDGWUkY

http://www.youtube.com/watch?v=QkJAv...eature=related

[YOGURT!]

you cant "reflash" these ecus.
and noone has ever had 12-1 pistons..

[<T>]

Originally Posted by YOGURT!

you cant "reflash" these ecus.
and noone has ever had 12-1 pistons..

I have 11:1 and I can run 89 octane all day. I'm willing to bet you could do 12:1 on premium. However one of my biggest regrets was going higher compression because I killed FI options down the road for a smidgen of horsepower.

I basically did an all out NA build and it's more like 20k after you realize hardcore racing parts don't make good daily driver parts... and that your NA transmission was not built to take the increased torque.

And it doesn't sound anywhere near that ricey 3startuna, it sounds very similar to an LS1 with magnaflows. Boring out + cammy heads for more mid to low range will sound meatier. The kind of tuning done in those clips is for high end which will sound more like a race car.

Anyways a full out NA build results in a hell of a fun car to drive, and decently powered too. Would I recommend it? No. I could have dropped an actual LS1 in for about half the price and get twice the results.

[SOHC3000GT]

Originally Posted by YOGURT!

you cant "reflash" these ecus.
and noone has ever had 12-1 pistons..

You can raise the rev limiter on these ecus...it has been done. search.

I have also never heard of anyone running 12:1 pistons, but your post doesn't even mention 11:1...serveral people run those...



Oh and a car running nitrous is no longer an NA. Nitrous is FI.

[3startuna]

Originally Posted by YOGURT!

you cant "reflash" these ecus.
and noone has ever had 12-1 pistons..

You can raise the rev limit, their is a guy on this site i think his name is turbobob that does it.

Also you can buy pistons in any compression ratio you want. 9:1, 11:1 12:1, 13:1 anything really. They just arent off the shelf items.

Heres what you'll need to get a custom set, Send in one of your stock pistons to wiseco or CP or JE, fill out a form (found on their website or at your local speed shop) telling them the specs on th pistons you want. They will custom make a set for you and ship them back to you. (I was considering this for a block I have lying around)

Very easy process, only it takes a little longer than if you bought an off the shelf item.

Also whats cool about wiseco and JE is that once you do a custom order from them once, they save the information in their database, so if you order another set in the future they will come alot faster.

To offset costs you could do this as a group buy.

Also you can run 12:1 pistons on pump gas no problem, M3s and some bikes i know come with 12:1 compression (or close to it) from the factory. (08 hayabusa comes with 12.5:1)

Its not to say our engines cant make power N/A, its just that no one has really tried to go all out on a build. The honda crowd has been running 12:1 compression in street motors for years now with good results. K20 in the type Rs run 11.8 compression stock.

Also who says you cant boost high compression? BMW M3s come with 11.5:1 compression at least and you have guys who boost em. What about turbo RSX type S? Ignition control is the name of the game friend

[3startuna]

Another point, the key to an NA build is to maximize VE (volumetric efficiency) thats basically how fast air flows in and out of the engine.

Cams, head work, ITBs, exhaust, headers, all serve to help this. A larger bore and longer stroke will affect this as well.

This is also why you see K20 engines making 300WHP and higher ALL MOTOR. The head on the K20 flows that well. I researched it awhile back and stock K20 heads actually flow as much if not better than VR4 heads!!!!

I think we can make more than 300 to the wheels with enough time money and research. I strongly believe its the heads that are really capping these engines potential.

Any turbo owner can attest to how badass a set of aftermarket heads are for a turbo car. It would have similar effects for all motor

[YOGURT!]

Originally Posted by SOHC3000GT

You can raise the rev limiter on these ecus...it has been done. search.

I have also never heard of anyone running 12:1 pistons, but your post doesn't even mention 11:1...serveral people run those...


Oh and a car running nitrous is no longer an NA. Nitrous is FI.

who the fuck are you telling to search, ive been modifying these cars since you were 12. raising the rev limiter is not "reflashing" the ecu, its modifying the ecu, reflashing is done through the OBD port, and can be undone and redone, with our car, its NOT a reflash, its a modification. although its just terminology, you dont want ricers across the country posting here where they can get their "REFLASH" done.

and no, nitrous is not forced induction, its a power adder.

"Two of the commonly used forced induction technologies are turbochargers and superchargers. They differ primarily in the power source for the compressor. There is a difference between forced induction and power adders. A power adder is anything that improves an engine's power output, which does not necessarily mean increasing charge density. Oxidizing technologies such as nitrous oxide injection systems provide improved power, but are not a form of forced induction."

http://en.wikipedia.org/wiki/Forced_induction

where can you buy off the shelf 11-1 pistons? anyone doing a full out NA build will know about rasing compression. plus im out of room to add them in the bible, im at 10000 charachters.

nice try, but quit mis-informing people.

[YOGURT!]

3star, I didnt say It couldnt be done, it just hasnt, to my knowledge on a 3s.. its not a worthwhile modification for us.. with the TT conversion being close to 1000 dollars, why blow a grand on pistons that will add maybe 10 hp.

the best bet for the NA car is the 3.5 motor swap when your 3.0 blows up. way more tq, and if you modify it, you will get a nice response out of the motor. and ill tell you what, if its anything like the 260hp VQ engine in my SE-R, that would be a car worth reconing with.

[SOHC3000GT]

Originally Posted by YOGURT!

who the fuck are you telling to search, ive been modifying these cars since you were 12. raising the rev limiter is not "reflashing" the ecu, its modifying the ecu, reflashing is done through the OBD port, and can be undone and redone, with our car, its NOT a reflash, its a modification. although its just terminology, you dont want ricers across the country posting here where they can get their "REFLASH" done.

where can you buy off the shelf 11-1 pistons? anyone doing a full out NA build will know about rasing compression. plus im out of room to add them in the bible, im at 10000 charachters.

nice try, but quit mis-informing people.

I never said anything about a "reflash." You are the idiot that brought that up.

You can buy 11:1 pistons from 3sx.
http://www.3sx.com/store/comersus_vi...?idProduct=807

For someone trying to have helpful thread, you sure are a dick.

[YOGURT!]

Originally Posted by SOHC3000GT

I never said anything about a "reflash." You are the idiot that brought that up.

You can buy 11:1 pistons from 3sx.
http://www.3sx.com/store/comersus_vi...?idProduct=807

For someone trying to have helpful thread, you sure are a dick.

actually, 3star brought it up, and all I did was state that its not "reflashing"
just making sure everyone was aware.

I AM a dick.. I dont even have to try very hard at it either...

Just dont tell a 7 year vet to search, otherwise you'll probably get a similiar response.