topmount or bottom-mount???

Website · Post by **meet07** » Sun Jul 22, 2007 9:31 pm

I havnt seen many rb25's with a bottom mount. Are there 3" DP clearance issues??

Post by **minivan_don** » Mon Jul 23, 2007 5:04 am

the stock mani is a side mount but i think your thinking thats a bottom mount ...

at any rate you can run a 3" dp with almost any mani but you might come close to the steering rack. im running a 3" dp but it was close but i had other things influencing that.

Website · Post by **meet07** » Mon Jul 23, 2007 5:59 am

Something like this:

Ive always wanted twins.

Website · Post by **meet07** » Mon Jul 23, 2007 6:01 am

Or even this:

Post by **minivan_don** » Mon Jul 23, 2007 6:05 am

yes but thats has a hidious turbo and wg flange ...

Post by **Coolwhip** » Mon Jul 23, 2007 6:13 am

concerning the flanges:::: cut, weld, fixed

Post by **lucky7** » Mon Jul 23, 2007 7:50 am

i still have no idea what the hell im going to do about a manifold when i upgrade. i refuse to spend $2k on a custom one.

Post by **minivan_don** » Mon Jul 23, 2007 8:05 am

rock the stock log mani ... if your really worried about flow then you could see if there is someone that could water hone the runners for improved/equalize the flow. im running the stock mani along with a custom spacer that allows me to use a tial 44mm wg but if for some reason i convince myself i need more results from mani, then id look at getting the water honing as i too will not spend $2k on a mani

Post by **lucky7** » Mon Jul 23, 2007 12:34 pm

what turbo are you running? i havnt decided between a GT30 or 35 yet. first priority is getting the power to the wheels. as right now im having traction issues in 1st and sometimes in 2nd on the stock turbo.

Post by **garage-c** » Mon Jul 23, 2007 1:52 pm

lucky7 wrote:what turbo are you running? i havnt decided between a GT30 or 35 yet. first priority is getting the power to the wheels. as right now im having traction issues in 1st and sometimes in 2nd on the stock turbo.

Same problem here... 1st gear is totally useless on my car. Second is pretty useless coming out of corners as well. The rear end just slides. What tires are you running lucky? I'm on 255/40/17's.

Post by **DriftingisLame** » Mon Jul 23, 2007 2:12 pm

Lucky7 if you're looking for a tire that hooks up real well for a GOOD price, I'd suggest the Kumho MX. I run 205/50/15's (small) on my s13, on the stock wheels. I guarantee with 255/40/17's you wouldnt spin unless you really want to on the stock turbo.

In my rb20 with 230 rwhp, I would spin so bad I'd have to let out in first and second, and chirp third pretty bad. After I put these tires on I cant spin full throttle in first, not even with the bigger turbo I have now.. We'll see how they hold up at 16 psi on the new turbo though..

Get a GT35 ftw.

Post by **minivan_don** » Mon Jul 23, 2007 6:03 pm

lucky7 wrote:what turbo are you running? i havnt decided between a GT30 or 35 yet. first priority is getting the power to the wheels. as right now im having traction issues in 1st and sometimes in 2nd on the stock turbo.

gt35 ... im runing 265's and i have no zero traction in first and second
Modified by minivan_don at 9:31 PM 7/23/2007

Website · Post by **meet07** » Mon Jul 23, 2007 7:36 pm

I will be shooting for 450-500+ in hp

Post by **gtrperformance** » Wed Jul 25, 2007 5:48 am

I can't understand how you guys are having traction issues. I'm running 255's also with my RB20 and I'm fine. VLSD or open diff? I got an R32 VLSD.

Post by **lucky7** » Wed Jul 25, 2007 9:12 am

im only running 225/45/17's. not to mention, i never got an alignment, so my camber is all messed up. ive gotten 3rd to step out on me before.

i had to get new tires, so i just got those ss595's. because they are so cheap, and in 3 months, im selling those wheels and getting something wider. then i can worry about turbo upgrades.

i will probably end up with MX's or 615's on my next set of wheels.

im also planning on 450+ hp when i upgrade turbos.

Post by **minivan_don** » Wed Jul 25, 2007 9:25 am

gtrperformance wrote:I can't understand how you guys are having traction issues. I'm running 255's also with my RB20 and I'm fine. VLSD or open diff? I got an R32 VLSD.

stock s14 vlsd. 265/35/18 in the rear and making WELL over 300whp - it depends on if i want to use the wg boost or up the boost with the ebc. maybe you are driving like a pansey ??

Post by **rbsileighty** » Fri Jul 27, 2007 3:48 am

Just be careful with sheering threads on bolts with bottom mount manifolds... I know a fair number of guys with SR's that have run them and ended up with instant NA cars while on track... and sometimes the road. Turbo is a lot of weight to hold in that position, so don't get one unless it has a quality V-band... and still be careful.

Post by **gtrperformance** » Fri Jul 27, 2007 4:46 am

minivan_don wrote:
stock s14 vlsd. 265/35/18 in the rear and making WELL over 300whp - it depends on if i want to use the wg boost or up the boost with the ebc. maybe you are driving like a pansy ??

LOL. I am. Silvia is my Biyotch and I don't want to abuse her too much.

Post by **garage-c** » Fri Jul 27, 2007 4:47 am

gtrperformance wrote:I can't understand how you guys are having traction issues. I'm running 255's also with my RB20 and I'm fine. VLSD or open diff? I got an R32 VLSD.

RB25DET, 11psi, Top Secret ECU + E-Manage Ultimate, Tomei T-Trax Advance 2-way diff, 4.636 final drive.

topmount or bottom-mount???

topmount or bottom-mount???

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Re: (minivan_don)

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