13.4 second 1/4 for your 'stockish' R33. (A how to guide).

[Guest INASNT]

Originally posted by R33NT

The article did a before and after dyno run showing there was an actual gain (i dont remember how much) in removing the mesh. Anyway you dont technically force more air in there you actually suck more air in there and the more tubulence (caused by something like a grate) the less flow you get!!!!

Anyway as long as you are careful not to leave the filter off and the filter is internally clean when you bolt it in then it wont cause any problems.

dont do it, i did it and the actualy gain u get is not even noticeable!

I get surges and weird idleing sumtimes after i pulled mine off!

[rev210]

yep, I should have mentioned I have removed the mesh.

It would improve airflow a little (it's quite obvious because it is a restriction), not so much power you'd notice though.

The mesh is there to stop knuckleheads poking screwdrivers into the hot wire. It certainly not there to smooth airflow beacuse the mesh is cheap ass and not completely even due to cheap manufacture.

[R33NT]

Re the surging that you are seeing, i think that it has something to do with the air flow meter measuring differently with a lower restriction input. I know that in my Apexi PowerFC you actually have to tell it if you are using the standard air box or a pod filter so it must affect the measured value in some way and with what i assume is a standard ECU in your car it could be a problem.

Again this is only an opinion, talk to your mechanic and see what he says.

[moondog]

Rev210, I'm glad to see you get a better response than you did on the SDU forum. That was rather sad - conjured up memories of when I posted my dyno results; same dyno as everyone else uses, but nobody wanted to believe it. It seems if you get something better than others they don't want to knnow about it. As I said in the "other" thread: Go the whale!!

[GTS-t VSPEC]

Yeah, I've seen rev210's whale haul ass, and while I don't do everytrhing he suggests, you can't knock the time he gets.

See'ya:burnout:

[Guest MFX_R33]

I went out to Eastern Creek a few weeks ago and watched 2 very similar GTSt's with FMIC's, running about 12 psi each, that could not get better than a 14.7. They had varied launches from bogging to wheel spin, and they couldn't get any quicker (not sure of the mph).

I decided to take my car down there last week to see how it would go. I left it in full street trim, with 18"s, full tyre pressure, system and spare still in the boot, and HKS coil overs. I did a 13.737 @ 105.41 mph.

I am thinking of going back soon, with my stockie 16's with 15psi in them and seeing what I can do.

Vishes, you said you prefer to run in street trim. If that is the case, then why would you strip out the back of the car?

Jeff.

[rev210]

good time.

The mph indicates there is a little more left in it too.

[whatsisname]

Originally posted by MFX_R33

Vishes, you said you prefer to run in street trim. If that is the case, then why would you strip out the back of the car?

BUSTED! :Owned:

Nice numbers Jeff. EC isn't the easiest track to get good ET's on either! Speaking from experience.

EDIT: Just noticed Vishes had already stated he runs minus seats etc... Removing interior is no longer "street trim" IMO.

Street trim to me means - out of the garage, down to the strip & off you go! That's how I run my car, nothing different to how I drive it 100% of the time. I've never even dropped my tyre pressures

[rev210]

MFX_R33,

Make sure the 16inch stockies have nice wide rubber on them. I really can't reccomend 205's for an easy launch.

[Guest MFX_R33]

The 16"s with 15psi in them have to be better than the 35 profile 18"s, or at least that is what i hope. Fingers crossed.

Jeff.

[BATMBL]

apparently you can put 235 tyres on the stockies. i know you can put 225 tyres, coz we have a few cars here that have 225 tyres on the stock rims.

any disadvantage of puting 235 on the stockies? i would say its a great idea!

cheers

[rev210]

235's will 'radial roll' when cornering. Apart form that its more rubber for traction at the strip.

[predator]

MFX_R33: hey soft/hard are your HKS coilovers?

Softer springs are meant to give better times for drags... yes/no ?

[rev210]

softer on the front help. Hard as hell on the back is good too.

[Guest MFX_R33]

My coil overs are HARD. Rev as far as I know you want softer suspension for the 1/4 so the car can squat off of the line. This helps the weight transfer, and give the rear more traction. From memory the ideal is to set up your rear shocks with a really soft compression, and a hard rebound. This way the car can transfer the weight onto the back wheels, and will slowly come back up further down the track.

Jeff.

[rev210]

MFX_R33,

The front is the make or break part. 90/10 shocks are best but, boy are they crap for driving around town.

If you have the diff cradle angle right (ala' cradle pinapples) the rear will squat regardless. The stiff front end is where the trouble starts.

I have standard 'soft' rear suspension and it does me no favours. Stiffer rear setup would get me a better 60ft

[DAMQIK GTS-T]

Just a comment about the pineapples isnt there three ways to set them up?

1.no squat (for drift)

2.full squat (for drag)

3.Combo of both (for every day sports driving but firmer arse end than stock)

Just something I read somewhere

[Guest MFX_R33]

All I am hearing about at the moment is pineapples?? I havn't really paid that much attention, but what do they actually do?

Jeff.

[benm]

I did a before/after review of these pineapples in the /Performance section.

Deffinetly worth the $110.

[Robo]

Going back to the tyre size question,

Which set up would net a better 60ft time?

1) 17" mags with 255x40x17 (36psi)

or

2) Stock rims with 225x50x16 (15psi)

Very interested to know which ones would obtain a better result.

Stock suspension.