Racing Beat TII Exhaust as Good As They Say? Power Increase? Fitment? Noise?
#27
OMG ITS A TRIANGLE!
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#28
I have it and I love it and I've owned several exhausts:
2.5" Bonez DP into custom 2.5" pipes into HKS Dragger: LOUD
3" SSautochrome turbo-back: LOUD
3" RB turbo-back: perfect
any exhaust that is large enough will increase the amount of boost but ONLY the RB system keeps it quiet and streetable but nice at WOT.
I can't vouch for the 59hp increase (since I had the loud, open exhausts before the RB) but I can vouch for it's noise level.
2.5" Bonez DP into custom 2.5" pipes into HKS Dragger: LOUD
3" SSautochrome turbo-back: LOUD
3" RB turbo-back: perfect
any exhaust that is large enough will increase the amount of boost but ONLY the RB system keeps it quiet and streetable but nice at WOT.
I can't vouch for the 59hp increase (since I had the loud, open exhausts before the RB) but I can vouch for it's noise level.
#33
Boost ahoy!
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Quick question, not meaning to hijack...
I have a large 2.5" - 3" exhaust on my car right now. My boost is set to what looks like 6-7 lbs, *which, I believe is higher than stock*...but would adding a RB to my car increase my HP or still, or has that already happened?
I've never dyno'd my car *don't know where to go for that...* and I've never driven a regular stock TII, so I can't compare.
I have a large 2.5" - 3" exhaust on my car right now. My boost is set to what looks like 6-7 lbs, *which, I believe is higher than stock*...but would adding a RB to my car increase my HP or still, or has that already happened?
I've never dyno'd my car *don't know where to go for that...* and I've never driven a regular stock TII, so I can't compare.
#35
Boost ahoy!
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That' I'm not sure of. I didn't get much info on the car when I bought it last year. It's an 88, so I figured if I was going to push 7 lbs, I'd have to have it ported. I don't have any boost creep or anything like that....so would that mean it's ported?
#37
Boost ahoy!
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Uhh, I don't know of any other mods that are big. I have a cone filter, no emissions, I'm not sure how they raised the boost level at all. Don't you have to keep that boost controller on there to keep the boost raised? Boy, I think I officially REALLY hijacked this thread.. SORRY OP!
#38
well if your stock boost controller is still plugged then you'll open the wastegate at ~6.5 psi. ( can't recall stock boost on the S4's) and if it's got a ported wastegate you won't see the boost spikes that yield the HP that RB claims.
If you get a boost controller you can increase boost, get an FCD, fuel controller and maybe bigger injectors. You really shouldn't go past 10/11 psi on stock injectors. Maybe someone else can chime in and add/take away from my post.
If you get a boost controller you can increase boost, get an FCD, fuel controller and maybe bigger injectors. You really shouldn't go past 10/11 psi on stock injectors. Maybe someone else can chime in and add/take away from my post.
#39
#FakeCarEnthusaist
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well if your stock boost controller is still plugged then you'll open the wastegate at ~6.5 psi. ( can't recall stock boost on the S4's) and if it's got a ported wastegate you won't see the boost spikes that yield the HP that RB claims.
If you get a boost controller you can increase boost, get an FCD, fuel controller and maybe bigger injectors. You really shouldn't go past 10/11 psi on stock injectors. Maybe someone else can chime in and add/take away from my post.
If you get a boost controller you can increase boost, get an FCD, fuel controller and maybe bigger injectors. You really shouldn't go past 10/11 psi on stock injectors. Maybe someone else can chime in and add/take away from my post.
#43
Boost ahoy!
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#44
you don't hit fuel cut because you're not increasing boost. IF your wg isn't ported than you hit 10+ psi which is ~1.4psi. past fuel cut and you NEED the FCD. IF your WG is ported than it's opening at the stock psi and you won't see any spikes. You have a boost controller?
#45
Boost ahoy!
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you don't hit fuel cut because you're not increasing boost. IF your wg isn't ported than you hit 10+ psi which is ~1.4psi. past fuel cut and you NEED the FCD. IF your WG is ported than it's opening at the stock psi and you won't see any spikes. You have a boost controller?
#46
18 year old cars are cool
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One year old thread and still kickin-
I'm a simpleton and a newbie, so please use small words-
If I install the RB Rev II 3" complete kit, downpipe-to-mufflers, on a fairly stock S5 1990 TII, is the RB FCD the only other mod I'd need?
Or is a new fuel pump required?
Porting of wastegate required? (and if so, how hard is that?)
New Injectors required?
Anything else?
Airpump/acv is removed, K&N filter on intake, calm driving to and from work with occasional "off the line" high revs or passing situations.
Thanks for any help in my exhaust planning-
steve
I'm a simpleton and a newbie, so please use small words-
If I install the RB Rev II 3" complete kit, downpipe-to-mufflers, on a fairly stock S5 1990 TII, is the RB FCD the only other mod I'd need?
Or is a new fuel pump required?
Porting of wastegate required? (and if so, how hard is that?)
New Injectors required?
Anything else?
Airpump/acv is removed, K&N filter on intake, calm driving to and from work with occasional "off the line" high revs or passing situations.
Thanks for any help in my exhaust planning-
steve
#47
rotors excite me
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For the car's safety/reliability port your wastegate (not real hard, but takes some time under to pull the turbo, remove the hot side, port, weld a bigger flap on (you should do that), clean, reinstall), upgrade your fuel pump, and upgrade at least your secondary injectors which will require some sort of intelligent fuel management. I use the Rtek 1.7, it works nicely and doesn't require tuning. I plan on eventually buying this exhaust, but it's $$$$! For now I have a custom (done myself) mostly open and larger than stock exhaust that works well enough for the moment.
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