Sunday, March 30, 2014 - 07:37 pm, by: Rory Braatvedt(Fallward)
Hey lads,
After many years, 2 V8 Soarers, and a bit of reserach, i've finally decided to take the plunge and get a TT. The one i'm looking at from a dealer in NZ has done 50,000kms and he's asking $9,000 for it. I know you're thinking that's extremely expensive, but that's the market for a low km's Soarer in NZ.
Obviously the car is immaculate and completely bone stock, and I have intentions of keeping it that way. That said, in stock trim they're slightly underwhelming at times (but absolutely beautiful to drive, so smooth and quiet - a much better drive than the V8 in my personal experience).
Basically I want to keep this thing stock looking, and quiet as hell. That means probably a stock exhaust.
My question is, could I get a nice front mount intercooler (stealth installed), leave intake and exhaust stock standard (not even BFI - don't want the noise), and up the boost to about 12-13psi safely?
I've read so many people saying that will blow the turbo's, with other people saying that it would be absolutely fine and that the stock intake and exhaust aren't that restrictive - the only reason people make more power out of changing them out is because boost naturally increases because of it...?
Expert opinions welcomed, I'm quite serious about doing this.
Sunday, March 30, 2014 - 09:46 pm, by: Robert Day(Lexsmaz)
Hi Rory,
Sounds like a good move going the TT route, have you driven this car ?? as they are not to bad stock & I wouldn't say underwhelming in stock form, can be made to go a lot harder obviously but will eat your V8 in stock form ..
What year is this car & I would be very dubious of the k's as 50,000 is very low & unless they can back it up I would take the k's being genuine as a grain of salt ..
I'm running a boost controller on my car, good exhaust cat back & emanage blue & No BFI & stock intercooler & run about 15 psi & all good so far with about 180,000 k's showing on the clock ..
So I would be changing the Exhaust from the cat back as that will make a difference & make the turbo's breath easier & it doesn't necessarily need to be loud & run a boost controller too, GReddy make a very good one & if you set it to 12-13 psi you wont need to run anything else like a FCD, etc as the boost is below boost cut, might be different on a very cool night, but just drive accordingly then ..
Sunday, March 30, 2014 - 11:18 pm, by: Blake Gloyn(Blakenz)
Rory, the inlet and exhaust are very restrictive in stock form. The fact that the boost rises when these are improved ,proves that. there are two jzz30 cars in NZ that have got absolutely ultimate intakes and exhausts and are running 18 psi with no boost controllers. stock is around 10psi. The rear mufflers reduce power by 10rwkW alone, so you can easily improve the flow there without increasing noise much at all. The small intakes to the turbos restrict power by around 16rwkW. Let me tell you, if you run a bone stock soarer at 13 psi via a boost controller, the turbos are working much harder than a soarer with just a bigger exhaust, running 13 psi.
Sunday, March 30, 2014 - 11:21 pm, by: Blake Gloyn(Blakenz)
BTW, there is no sound deadening material in the factory rear mufflers. they employ holes, baffles and louvres, so it is easy to improve flow without increasing noise. Go with the new technology mate
Monday, March 31, 2014 - 06:41 am, by: Rory Braatvedt(Fallward)
Cheers for the feedback guys. Looks like at least a Cat-back needs to happen, I just like the idea of the car staying whisper quiet... I guess i'll have to ask some reputable exhaust shops to see what they can do. Could I go intercooler and catback leaving everything else stock?
That said, the only thing holding me back from getting this Soarer is the fact that it hasn't got a factory LSD. You can get auto's with factory LSD, right? 50,000kms is probably unlikely but if the condition is mint.....
Robert - Perhaps underwhelming is the wrong word. They're still leagues ahead of my old V8, but I'm trying to be realistic with myself in knowing I'd eventually seek just a bit more boost, might as well given how strong these motors are.
Monday, March 31, 2014 - 07:55 am, by: Nathan Sheehan(Soarermad1)
wouldnt it be better to go 3" from turbos to cat then keep close to stock rest of the way? cat backs arent going to add much in the way of improvement if the rest is bottle necked. Soarers are quiet enough with 2.5" at rear, I once left mine running by accident (Thanks turbo timer) for 15 minutes before a workmate noticed it running and let me know.
Monday, March 31, 2014 - 11:55 am, by: Robert Day(Lexsmaz)
Looks good, but Very pricey especially for a 91 model as its the very first of them & no way has it done 50,000 k's as that works out at about 2,000 k's a year !!!!
What have they done to verify the k's with you ?? is it a fresh import for them or did they buy it off someone there in New Zealand & if so get their number & ring them ..
I think you are getting caught up with the LOW k's showing & as its such an old soarer Now the chances of it being genuine k's are so rare, if I was you I would look for a good one with 100,000 or so k's which is probably what this one has done & pay 5,000 less .. I wouldn't go more than $6,000 for this car & that's still way to much ..
You could get a very clean 97 VVTI here for that sort of money & I'm sure it would not cost heaps to get it over there ??? ..
Let us know what they say & what you do ..
Regards ..
Rob ..
PS, don't worry about asking what mods to do first etc, concentrate on not getting ripped off first & do a lot more homework on this car & others around there in New Zealand ..
Monday, March 31, 2014 - 03:22 pm, by: Shane Haverkamp(Havabeer)
Blake Gloyn wrote on Sunday, March 30, 2014 - 11:18 pm:
there are two jzz30 cars in NZ that have got absolutely ultimate intakes and exhausts and are running 18 psi with no boost controllers. stock is around 10psi.
how are they getting around the 14psi boost and fuel cut the stock ECU has?
how genuine are the k's? do the have any import documentation to prove this?? i only ask because its not hard to swap a dash (theres even one in the for sale thread with 35,000k on it)
Monday, March 31, 2014 - 04:21 pm, by: Rory Braatvedt(Fallward)
They just imported it, so I guess I could ask for the import papers which will have the kms. I find it hard to believe too.
The annoying thing is that most of the Soarers in NZ are fresh imports with 'low kms' for $9,000 or 250,000kms + for $3-4,000. Nothing really in the middle.
Monday, March 31, 2014 - 07:03 pm, by: Blake Gloyn(Blakenz)
Shane, the cars running 18 psi have got stock turbos, not stock ECUs. both have power fc computers. Rory, to save money, you could leave the stock down pipe in place. It flows ok. Ditch the cat. buy a resonator from AdrenalinR in Hawkes Bay. Their sound deadening technology is impressive. Do The front mount cooler.(paint it black) Replace the factory paper air filter with an aftermarket one that fits in the stock air box. The car will look stock, sound almost stock, but go REAL well.
Monday, March 31, 2014 - 07:13 pm, by: Blake Gloyn(Blakenz)
Rory, it probably is too expensive for a non LSD equipped soarer. However, if it meets your exacting standards, then paying a bit too much means little if you keep it for years. Torsen LSDs come up every now and then. Bolt in, Drive away(leaving two black lines!)
Monday, March 31, 2014 - 09:11 pm, by: Kurt Atzmuller(Kurt)
Ahh throw a dump in there too i reckon Blake, if your exhaust is quiet enough but good flowing a better dump will not make it any louder. There's lots to be gained in that first 12 inches of dump off the turbo's.
Tuesday, April 01, 2014 - 07:11 pm, by: Rory Braatvedt(Fallward)
So just to get this back on topic, in order to get a stock soarer quicker whilst retaining a similar level of noise (which is very quiet from stock), I should get a front mount intercooler and a more free flowing exhaust from the turbo back but using high quality mufflers? Can't help but feel it will still be heard....
Tuesday, April 01, 2014 - 07:25 pm, by: Kurt Atzmuller(Kurt)
Yes that's it Rory. I have a single 3 inch exhaust on my car it has 2 hot dog type resonators and a ok straight through muffler with a 3 inch tip on the end. And its fairly quiet. Still sounds angry at wot but not what i would say offensive. I think if you keep smaller tips on the end it will keep it a little quieter as well so maybe stay away from 4 inch or larger tips.
Tuesday, April 01, 2014 - 07:35 pm, by: Blake Gloyn(Blakenz)
yeah i think it will be heard. Though i doubt you will get a big gain from any of your mods without first having a better exhaust. Given your requirements,just put a boost bleed in and up the boost from 10 psi to 12-13psi. replace the air filter, and cut a larger hole in the front of air box. You won't hear an increase in intake noise. The standard intercooler will be fine for any soarer running a standard exhaust. In fact, why not put in a shift kitted valve body in the trans? it will make the car significantly quicker, and with no added noise.
Tuesday, April 01, 2014 - 08:36 pm, by: Allan Langford(Allan)
a good twin 2.5 exhaust with as many strait through mufflers as you can fit!
I would suggest a good dump pipe into a 3"->2x2.5" Y under the tailshaft offset two 2.5" cat's then into two U mufflers before the subframe and then into a center-offset 2.5" each side at the back and then slide the stock exhaust tips over the 2.5 inch pipe, stock, little bit of a note due to the strait through design but quite.
I would fit a nice big front mount IC, a cheap chinese 300x600x100 will do the trick this will make the most of the factory setup without "turning up the boost" other than what you gain by increasing the efficiency of the stock engine
no need to hack up the airbox just remove the front snorkel will help and then use the "BFI" covers to duct in cold air.
Tuesday, April 01, 2014 - 09:07 pm, by: Robert Day(Lexsmaz)
Are you concerned about increased noise inside the cabin or outside, if you cut up the air box it will definitely increase noise inside the cabin when giving it stick & maybe a little bit more outside too & a bigger exhaust will increase the noise outside to a degree, but it still sounds good to my ears, just so long as it doesn't drone, that will do your head in real quick ..
Tuesday, April 01, 2014 - 10:20 pm, by: Daniel Clarke(Dieseltrain)
My car had stock dumps , single 3 inch into twin 2.5 exhaust , Fmic , stock air box with K&N panel filter & boost controller @ 12-13psi . Car ran 13.5 @ 103mph .
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