My new coupe pics (suspension)

Forum for Nissan wheel fitment, tire selection, suspension setup and brake discussions.
Silvia2b
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Car: 95 240sx se / 07 G35s cpe / 2009 G37s sedan (rear-ended R.I.P.) / 19 Q50 rs400AWD
Location: Portland,OR.

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Cool, yeah I've been watching the NW meets posts.


veilside180sx
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Custom Intake Manifold was finished yesterday and is on it's way being shipped up here. Which I am very excited for.

I have to weld up some intercooler piping/downpipe and I'm be ready to rock and roll. Well if you don't count the rear suspension and gas tank.=)
Modified by veilside180sx at 7:40 AM 7/12/2005

veilside180sx
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New updates:

JGS Precision Custom Intake Manifold





It'll be polished up a bit before the car gets fired up. At least I'll do my best to. Since it's kinda on the back burner with how much other stuff I have to get done before the 22nd. It's made to work with the stock fuel rail, which frankly...flows plenty.:shock:

Don't mind the valve cover, it's not the one I'll be using. Boy is it hideous.
Modified by veilside180sx at 8:10 AM 7/13/2005

veilside180sx
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Further Away Motor Shot



JGS Log Manifold With Wastegate



Close Up Of JGS Wastegate



Huge thanks to Lance and the boys at JGS Precision for turning out the intake manifold as quickly as they did.
Modified by veilside180sx at 8:06 AM 7/13/2005

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yessir240
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Car: s14 zenki

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Very clean car love how, as previously stated, you did it the right way good job man keep it up!

veilside180sx
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Installed the gas tank, wiring harness, etc. yesterday.

Hopefully I'll get the rest put together and start on tuning this thing.=)

veilside180sx
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Well I made a descision to skip the turbo I currently own, so the 50 trim is out all together never to even get installed. I'm don't want to keep redoing things so I'm going to just buy the turbo I want now. So I'm picking up a T3/GT40 (same compressor as GT35R). I figure that's capable to get me into the 600's and have reasonably decent spool characteristics. So I'll order it in the next couple of weeks, which detains finishing this project a little, but it'll be worth it.

Then it'll max out the same as my 720's and intercooler...so I'll probably just stop about there with my power desires.
Modified by veilside180sx at 8:21 AM 7/18/2005

Golden
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Oil Piston Squirters? Iff this is meant to cool the piston by squirting oil on it from below, I want to give you my impression. The technique is workable but is a poor solution to a problem best solved at parts selection. Select more heat-resistant pistons. 8.8 is quite above the lower limit cylinder compression ratio for a turbo system so you can select shorter connecting rods to lower this CR further: eat the lower throttle-responsiveness and dial up the boost a bit more to compensate. Having resolved to make a firm decision about RPM limit and maximum boost; relative lengths of exaust-port _to_turbo piping can be selected so as to turn your engine into a cathedral of piston-cooling gospel. Precise length ratios for these pipes will send pressure waves back up the the exaust manifold so if your pipe-organ plays just the right note at just the right time (the point of maximum exaust manifold-pressure), complementary cylinders' exaust charges will set up a destructive interference pattern helping pistons expel waste and thus resulting in still further reduced piston temperature. This effect is kind of like why a properly-selected box will cause a sub-woofer to kick it's lowest bass-note at double amplitude (constructive intererence) and why traffic-jams cause that maddening caterpillar-slinky effect. The Physics is kinda sloppy and the Math is non-existent but whatever. Just wanted to toss you some ideas.

veilside180sx
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Just about every race motor has oil piston squirters, I'm merely adapting them to a motor that doesn't have one.

8.8 isn't exactly high compression, these same pistons happen to also being in the highest powered DE motor. 3/4 of the guys with over 400 rwhp KA are running these same pistons. So I'm not too worried about that.

I understand what your saying though.

veilside180sx
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double post
Modified by veilside180sx at 8:19 AM 7/18/2005

veilside180sx
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triple post...not sure how this happened.
Modified by veilside180sx at 10:21 PM 7/21/2005

sanioll
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Car: Nissan 240SX SE
Toyota Camry

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I love you man. I simply love you. How and where did you get all those parts?? They are super clean, that is how mine will look like when i rebuild.

veilside180sx
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sanioll wrote:I love you man. I simply love you. How and where did you get all those parts?? They are super clean, that is how mine will look like when i rebuild.
Well quite a few of them are custom built. Not really anything that isn't replicatable though. The motor is filthy still though, at least the front timing cover is. Needed to take a toothbrush to it, but couldn't due to time restrictions.

Thanks for the appreciation though, it's always nice.
Modified by veilside180sx at 1:43 PM 7/22/2005

veilside180sx
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Turbo was ordered today, so I'm waiting on it to do the intecooler piping. Also had to swap lower ball joints (rear) had ordered the wrong ones.

I ordered the T3/GT40 .82 A/R (basically a non-ballbearing GT35R)

240marcuSX
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Car: E34 525i
E46 M3

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lose the fram. but otherwise beutiful, i have much love for the ol 12 valve

veilside180sx
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That filter is sooo messed up now.(from the chain pulling the motor.=) Yup picking up some from Nissan as soon as I get the chance. I have another fram to run through some oil for the first oil change though.

veilside180sx
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Here's a pic after I started polishing up the manifold. It's going to look awesome. Crappy pic though (camera phone). I've finished the majority of the plenum, but haven't gotten anywhere on the runners.


veilside180sx
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Before



After


Golden
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I want to take back my statement about shortening the connecting rods. The literature basically rejects this as a method for lowering compression ratio using stock block and head. It seems piston selection and/or modification is the only way. Iff you can be certain about how thick the top of the piston is and the extent to which they are surface treated, you could have them dished and re-treated for not too much money. With respect for the engineering of the stock components, don't dish all the way out to the edge of the piston, leave about 8mm untouched. No point wasting all that expensive chamber design.

veilside180sx
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I understand where you are going with all this, but you do realize that the stock SOHC KA has a compression ration of 8.6:1. So I don't think it's really necessary to continue to dish out the stock pistons. The weak point is the ring lands, which dishing them out isn't going fix.

The current block will remain stock while I build up my spare. Following which the built block will go in and this one will be built up. That way I have a built spare for when I smoke the other.
Golden wrote: I want to take back my statement about shortening the connecting rods. The literature basically rejects this as a method for lowering compression ratio using stock block and head. It seems piston selection and/or modification is the only way. Iff you can be certain about how thick the top of the piston is and the extent to which they are surface treated, you could have them dished and re-treated for not too much money. With respect for the engineering of the stock components, don't dish all the way out to the edge of the piston, leave about 8mm untouched. No point wasting all that expensive chamber design.

veilside180sx
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My new turbo arrived today, but I wasn't there to sign for it. So I'll have to pick it up from the depot tomorrow. I also wound up ordering the Innovate LC-1 wideband today. I decided after all this that I don't need to see it unless I'm tuning it at the time. So that will be here in a few days as well.

sean8564
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Car: 1993 Nissan GT-R V-Spec
1991 Nissan 300ZX TT Black
1993 Nissan Silvia
1990 Nissan 240SX Coupe RB25DET

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good to here it looks like every thing is coming along good.

veilside180sx
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New turbo pics...compressor housing still needs to be polished though...








TurboKA37
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looks awesome, how much are you paying the powder coated parts? i am interested in getting some stuff done

veilside180sx
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Too much, I'm switching my powder coater. I paid $50 for just the lower control arms (Most recent thing done). My new guy said he would've done it for $10, but it's also a hookup.=)

veilside180sx
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Here's a better pic of the intake manifold next to the turbo with manifold and wastegate attached.



Also here's a shot of the Venturi's on the inside of the intake manifold.=)


kamikazestorm420
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im jealous

veilside180sx
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Some pics of the mounted intercooler



[/QUOTE]

turtl631
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Car: S14

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you are indeed an SPL/JGS whore Good choices though, you'll have to report back on your choice of alignment and how the suspension response and balance are. I'm also curious as to how the JGS wastegate and BOV will work, as I bought them in anticipation of my setup. Which JGS intercooler is that?

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Red coupe
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Car: 92 Nissan 240sx Coupe

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veilside180sx wrote:I understand where you are going with all this, but you do realize that the stock SOHC KA has a compression ration of 8.6:1. So I don't think it's really necessary to continue to dish out the stock pistons. The weak point is the ring lands, which dishing them out isn't going fix.

The current block will remain stock while I build up my spare. Following which the built block will go in and this one will be built up. That way I have a built spare for when I smoke the other.
just a though but maby you could find DE pistons to lower compression a little?I dont kne if the KA-ET guys do that or how low of compression it would make but it seems like if the de guys use e piston for high comp. maby turbo e guys could do the oppsoite to lower it?Just a though I had the other day and since I saw you guys talking about it here though Id add it.


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