Announcement

**RABBIT** · 10-22-2009, 12:45 AM

literally one of the purrdest H chassis on here . im so happy ur builing up the 20 .
such a great motor im aiming for 550 to the crank my self .
i dont see any plans for your cooling or oil system should be upgraded for sure.

**Skym** · 10-22-2009, 12:52 AM

I like.

A few questions about Synapse BOV, if you don't mind.

Did the stock rubber recirc intake hose joiner fit over 1.25 inch BOV recirc fitting that was shipped with BOV????

How do you like the Synapse BOV????

The reason I ask as I need to replace the stock BOV that's causing flutterdump / compressor surge problems.

Also fit Nistune. Nistune can run the same maps your car is running now and be reprogramed for future mods. Mines ECU can't, as Mines put glue over EPROM chip.

**Snow** · 10-22-2009, 12:59 AM

OMG I agree with Rabbit for once.

Kodak moment *smiles* *Click*

But seriously, I think you may want to consider a new rad and oil cooler/filter relocation. Why not when you're in there?

I would also suggest a stronger clutch. I can't remember if you're running your stock one (from above notes I would assume yes) and that'll be smoked pretty quick with 400 at the crank (or so I would assume).

I would keep an "oh **** I broke it" fund for your rear end and tranny too.

And I would suggest before getting knee deep in this **** you fully anticipate doubling your budget. Just look at Mikes car. F-cking SICK. But f-cking expensive too.

I'm excited for you. I'd love similar power at lower spool. I have alternative ideas tho...

EDIT: I thought it said RB30 build, not GT30, and I was going to walk up and smack you at the next meet since I know it would never happen

**PL_GTR** · 10-22-2009, 01:03 AM

The synapse is a long story, i don't know if i got unlucky or whatever, but this is the 3rd one for me, I am lucky i bought it at ztune and it was covered under warranty, but for future buying of bovs, i am going to stick with hks, greddy, or blitz.

The diaphragm on the bov broke on me twice at 14 pounds of boost.
The recirc one that i have now is fine, working for now. Mike on here helped me fabricate a silicone heater hose that went from bov to recirc pipe.

thanks rabbit, i forgot to do the cooling stuff, but i will probably get electric fans and an aftermarket rad. oil cooler maybe, but its going to be mostly for street.

**PL_GTR** · 10-22-2009, 01:06 AM

i have a practically brand new nismo twin plate and its fine for my application.

snow i will be able to get the Mine's Gtr if i get into a career sooner or later, its still a few years off and i am both working hard and being optimistic. I gave up on the whole lottery thing lol.

**Skym** · 10-22-2009, 01:45 AM

I see, thanks.

From what I can see from construction diagrams, Synapse BOV doesn't use a diaphram, it uses O rings. Sometimes if O rings aren't lubed when installed, they can break or be damaged and not seal properly.

I thought Synapse BOV needed a different recirc joiner, as I measured stock BOV recirc fitting at 29mm / 25.4mm = 1.1417 inch or so. So stock rubber recirc joiner won't fit over a 1.25 inch x 25.4 = 31.75mm fitting. Would have to buy their recirc joiner. Just as well, as I need to replace that joiner due to stock intake hose clamps producing cracks in that joiner.

Here's the 1.25" silicon hose joiner on their website -

http://synapseengineering.com/cart/products/1_25_Silicone_Coupler-85-5.html

Do you have rough idea on length of that joiner, as 76mm might not be long enough???

What did you do for boost feed???

**Snow** · 10-22-2009, 01:45 AM

I never doubted the mines GTR.

Where there's a will there's a way.

But on that note, it will come sooner if you save your money now

**PL_GTR** · 10-22-2009, 01:54 AM

i take some pictures for you, but i am not expert on Bovs. mine came with like a wide adapter thing on the bov end where we attacked a rubber hose from napa + silicone rad hose and made a join from bov to the re-circ pipe. It idles at 850rmp when engine is warm.

Edit. ya you don't need a specific cuppler from synapse, just make your own, it works fine.

ya 7 cm is way to short, now way it will make it

**Skym** · 10-22-2009, 02:24 AM

Would be much appreciated, thanks.

Were all learning something new everyday about our cars, nobody knows everything, including me.

Where I am, don't have access to a NAPA store.

1inch = 25.4mm. At least that's what it says on conversion chart I have.

76mm / 25.4mm = 2.9921 inch or roughly 3 inchs, which like you have already said, doesn't look long enough.

**M13** · 10-22-2009, 02:38 AM

mmm I consider this my second project car.

Keep up the good work Jakub, that MAF is waiting also

**PL_GTR** · 10-22-2009, 11:22 AM

thanks mike, ya i am going to try to do some of the stuff on my own, but stuff like headgasket and studs, you and andrew are going to help me out.

**RHDvancouver** · 10-22-2009, 01:34 PM

Nice paint job!

**Muss** · 10-22-2009, 02:02 PM

Want you old GTR hood back to throw on it?

Looking good mate.

**PL_GTR** · 10-22-2009, 02:19 PM

you still have that thing

Announcement

Gt30 rb20 build - 1 Year Project + Paint Job Pictures

Gt30 rb20 build - 1 Year Project + Paint Job Pictures

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment

Comment