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TB?
Oct 16, 2005 11:09:16 GMT -6
Post by 97abrora on Oct 16, 2005 11:09:16 GMT -6
Does anyone know where we can get 80mm TB for our Auroras' other than RSM? That seems a little high, but it's my last resort.
And what's that "core charge" RSM has? It's an additional $100...
-Nick
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TB?
Oct 16, 2005 11:15:51 GMT -6
Post by Aurora40 on Oct 16, 2005 11:15:51 GMT -6
You could try a local machine shop to see if they'd do it.
The core charge is like any other. You pay it until/unless you send them in your stock TB, or "core". If you send them your TB for modification, you won't have to pay it.
If you do get this mod done, make sure to get the piece behind the TB machined out to 80mm as well. There's a collar thing that connects the TB to the intake manifold. It's somewhere between 75 and 80mm wide, so matching it to the TB is a good idea.
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TB?
Oct 16, 2005 11:20:08 GMT -6
Post by 97abrora on Oct 16, 2005 11:20:08 GMT -6
So would it be safe to get that piece behind the TB machined out to 80mm and still drive around with the stock TB for some time? Or does this all have to be done at once? Or can I drive around with the 80mm TB to get the piece behind the TB machined?
So if I pay the extra $100, they send me a new TB, otherwise it's $100 less to send in my own?
-Nick
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TB?
Oct 16, 2005 11:31:06 GMT -6
Post by Aurora40 on Oct 16, 2005 11:31:06 GMT -6
That seems like a lot of effort. What would be the point of machining the piece behind it without doing the whole thing? If it's cost, why not just save the money you'd pay now for that piece, and wait until you can afford the whole thing?
Edit: Yes, if you pay an extra $100, you will basically have two TB's. Your original and a modded one.
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TB?
Oct 16, 2005 11:35:14 GMT -6
Post by betonthis1 on Oct 16, 2005 11:35:14 GMT -6
80mm TB to get the piece behind the TB machined? So if I pay the extra $100, they send me a new TB, otherwise it's $100 less to send in my own? -Nick you pay the core charge for keeping yours and then you get refunded once you give it to them.
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TB?
Oct 16, 2005 11:35:25 GMT -6
Post by 97abrora on Oct 16, 2005 11:35:25 GMT -6
I'll check with a machine shop first. My intentions were to get the TB from RSM then get that piece you mentioned machined out too. I asked because I am sure I could install the TB itself, but I couldn't do any of the machine shop work. So I thought I would install the TB, then take it to the machine shop to get the back piece machined. Am I not getting something here? lol
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TB?
Oct 16, 2005 16:50:34 GMT -6
Post by Letitroll98 on Oct 16, 2005 16:50:34 GMT -6
I think you get the entire throttle body assembly from RSM, but I could be wrong.
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TB?
Oct 16, 2005 17:11:19 GMT -6
Post by SupaStealth on Oct 16, 2005 17:11:19 GMT -6
what about the butterfly? wouldn't that need to be bigger too?
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TB?
Oct 16, 2005 19:01:38 GMT -6
Post by 97abrora on Oct 16, 2005 19:01:38 GMT -6
I think you get the entire throttle body assembly from RSM, but I could be wrong. I'll e-mail them and ask them if thats available.
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TB?
Oct 16, 2005 20:31:05 GMT -6
Post by oldsauroraman1 on Oct 16, 2005 20:31:05 GMT -6
The butterfly is part of the TB. :-)
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TB?
Oct 17, 2005 0:52:25 GMT -6
Post by 95mushroom on Oct 17, 2005 0:52:25 GMT -6
I think he means since you bore out the TB, wouldn't you need a larger butterfly to fit the TB otherwise there would be a gap around the butterfly causing a high idle?
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TB?
Oct 17, 2005 22:32:32 GMT -6
Post by SupaStealth on Oct 17, 2005 22:32:32 GMT -6
I think he means since you bore out the TB, wouldn't you need a larger butterfly to fit the TB otherwise there would be a gap around the butterfly causing a high idle? indeed my man
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TB?
Oct 18, 2005 10:00:51 GMT -6
Post by Aurora40 on Oct 18, 2005 10:00:51 GMT -6
RSM includes a new butterfly when they do it.
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TB?
Oct 18, 2005 11:14:52 GMT -6
Post by 97abrora on Oct 18, 2005 11:14:52 GMT -6
"We have the match ported adapter neck for $US190.00. The 80 mm TB is a direct bolt-on and will fit the stock adapter neck but the match ported adapter with further improve performance."
I asked if they sold a "complete" TB for our Auroras.. and this is the answer I got. Is this what you were referring to 40?
So, for $650 you get the complete TB, minus $100 when you send in your old TB. Total: $550
This is something I will have to think about.. First upgrade will be that Fujita custom air intake. Then the TB and a Corsa exhaust.
-Nick
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TB?
Oct 18, 2005 13:55:43 GMT -6
Post by betonthis1 on Oct 18, 2005 13:55:43 GMT -6
what does the TB do? im with you 97abrora, i want a custom intake and Corsa exhaust.
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TB?
Oct 18, 2005 14:02:01 GMT -6
Post by 97abrora on Oct 18, 2005 14:02:01 GMT -6
what does the TB do? im with you 97abrora, i want a custom intake and Corsa exhaust. "A housing containing a valve to regulate the airflow through the intake manifold." It allows more air into the engine if I'm correct. With a larger mouth from the TB, you get more air. Thus creating more HP. With the full block from RSM, I was hoping to get anywhere from 15-18 HP from the custom TB and backing plate (I think thats what it is). So with a custom intake (8-10), custom TB (15+), and Corsa exhaust (20-25), 300+HP is what I'm looking to make. 325 or so at the crank. Sound reasonable anyone? Or have I totally lost it? -Nick
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TB?
Oct 18, 2005 14:02:11 GMT -6
Post by Aurora40 on Oct 18, 2005 14:02:11 GMT -6
"We have the match ported adapter neck for $US190.00. The 80 mm TB is a direct bolt-on and will fit the stock adapter neck but the match ported adapter with further improve performance." I asked if they sold a "complete" TB for our Auroras.. and this is the answer I got. Is this what you were referring to 40? So, for $650 you get the complete TB, minus $100 when you send in your old TB. Total: $550 Yes, that's what I was talking about. They used to do it for $100, and you can buy the part new for like $15. For $190, I'd probably buy one or two myself and try to dremel it. Personally, this would be the last modification I'd make after doing other things. I think a bigger TB on an otherwise stock motor would have minimal gains. An exhaust would be my first modification.
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TB?
Oct 18, 2005 14:05:32 GMT -6
Post by 97abrora on Oct 18, 2005 14:05:32 GMT -6
Really 40? I was going to take it to the dyno after all modifications have been made. So what other engine modifications would you do?
It does make sense to upgrade the exhaust, so more air can be pushed out quicker, rather than having more air inducted, and no where to go.
Since the TB and exhaust are around the same price.. $400 or so.. I think I might do exhaust and intake first. TB last.
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TB?
Oct 18, 2005 14:07:04 GMT -6
Post by Aurora40 on Oct 18, 2005 14:07:04 GMT -6
So with a custom intake (8-10), custom TB (15+), and Corsa exhaust (20-25), 300+HP is what I'm looking to make. 325 or so at the crank. Sound reasonable anyone? Or have I totally lost it? There were two people who have done this. One was TaylorD, the other was Greg Garnes (author of the airbox mod writeup). I don't believe either of them felt their car was making 325 crank horsepower... In fact, they both dynoed their cars before and after the modifications. Their dyno results, assuming 24% loss, indicated around 275-280hp if I recall correctly (which I may not). I would suggest you search around on the Edmunds Townhall site, there is a lot of good info from them both there. I was very skeptical of the TB upgrade, though those that have done it felt it was worth it, and have dyno charts to back it up. On my car, it would be about $1000 to do, as my TB is a lot more complicated and expensive (I would have a new one bored, not my original). This was about the same cost as my exhaust, yet it has never tempted me in the least.
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TB?
Oct 18, 2005 15:48:14 GMT -6
Post by Aurora40 on Oct 18, 2005 15:48:14 GMT -6
I went back and looked, seems like the throttle-body guys were getting about 20hp on the dyno from the K&N and TB, adjusted for driveline loss. So around 270-275hp or so.
I didn't experience it, so I can't comment. They paid a lot less than you, though, for it. For $300, maybe it's a better mod than the exhaust. For $650, I'd go with an exhaust first.
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TB?
Oct 18, 2005 21:14:42 GMT -6
Post by 97abrora on Oct 18, 2005 21:14:42 GMT -6
40, I was assuming from your calculations you get.. let's say 20HP from the Corsa, RSM claims 14 or so with the TB and another 3 or 4 for the machined out back plate.
Now we're up to 38 or so HP, plus the intake.. let's say 8 more HP.. that's 296HP at the crank.. which comes out to.. roughly 280HP or so at the wheels.
Think after a few months at the track practice this could be a low-mid 14 second car?
-Nick
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TB?
Oct 19, 2005 6:16:35 GMT -6
Post by mission008 on Oct 19, 2005 6:16:35 GMT -6
no way would I ever pay $650 let alone $550 for a TB....way overpriced.....you can find cheeper. Hey 40, are you saying that with just a TB & K&N that guys are getting 20hp? Also is that the reading at the wheels or crank?
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TB?
Oct 19, 2005 8:37:52 GMT -6
Post by 97abrora on Oct 19, 2005 8:37:52 GMT -6
I doubt you can find a cheaper custom TB with the machined out backing plate.
Aftermarket ones for civics are like 350 themselves..
It's not like there is a HUGE demand for these for our cars. I wouldn't mind spending the money since I still live my parents, and I don't have to pay for a room and furniture etc. likewise if I were to room with someone.
I'd like to get the most out of my car performance wise, and since those guys saw 20HP at the wheels I believe, that TB is from RSM. So i'd like to get the same results or greater with mine.
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TB?
Oct 19, 2005 8:40:48 GMT -6
Post by Aurora40 on Oct 19, 2005 8:40:48 GMT -6
Think after a few months at the track practice this could be a low-mid 14 second car? Not really, no. But hey, what do I know? The car could certainly break into those times, I just doubt it will be with a TB and exhaust. Keep in mind, the fastest classic we've seen here was a 15.6. Taylor ran a 15.8 with the TB, cone, and a custom airbox housing. He didn't have the Corsa yet, but it would have had to shave over a second off his times to reach the target you are setting. As you your horsepower adding, I don't believe it will work like that. Let's say you ran the car with no intake at all, and no exhaust off the headers. How much power would it make? Now let's say a freer exhaust can get you 75% of the way there by itself. And a freer intake can get you 50% of the way there by itself. If you combine them, you won't get 125% of the way there... At best you'll get 100% of the way there. I'm not a believer in adding up claims from parts. no way would I ever pay $650 let alone $550 for a TB....way overpriced.....you can find cheeper. Hey 40, are you saying that with just a TB & K&N that guys are getting 20hp? Also is that the reading at the wheels or crank? I guess I thought I gave you the info on how to find this yourself. It's all there on Edmunds Townhall discussion on the Aurora board. There's a whole lot of discussion about it if you are interested. But I dug through it again. Taylor's results were as follows: Baseline: 190.0 Hp & ???Torque Next two runs with RSM's Intake w/ K&N cone: 198.3HP & 202.9 Torque 195.7HP & 199.0 Torque Added RSM's bored 80mm Throttle Body: 205.0HP & 214.3 Torque 206.7HP & 214.0 Torque Garnes results: Baseline runs: 191.1 HP, 205 torque 193.2 HP, 209.1 torque New TB runs: 198.6 HP, 214.2 torque
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TB?
Oct 19, 2005 8:45:09 GMT -6
Post by Aurora40 on Oct 19, 2005 8:45:09 GMT -6
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TB?
Oct 19, 2005 9:15:21 GMT -6
Post by mission008 on Oct 19, 2005 9:15:21 GMT -6
wow...thanks 40
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TB?
Oct 19, 2005 13:10:42 GMT -6
Post by 97abrora on Oct 19, 2005 13:10:42 GMT -6
40, I was just hoping to achieve those times or a little better with almost 2g dropped in the car in performance parts. But I might not.. You got to 14.86 with just the modded intake, and exhaust right? So by adding the TB and backing plate, while running 100 or so octane, mid to low 14's don't seem so likely?
Do you think by adding the Corsa exhaust first, the TB would/could create more HP? Since you told me to do it this way, do you think Taylor could have seen more HP gains by doing it this way, rather than the way Taylor and I had in mind?
-Nick
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TB?
Oct 19, 2005 13:19:26 GMT -6
Post by Aurora40 on Oct 19, 2005 13:19:26 GMT -6
Do you think by adding the Corsa exhaust first, the TB would/could create more HP? Since you told me to do it this way, do you think Taylor could have seen more HP gains by doing it this way, rather than the way Taylor and I had in mind? Taylor ultimately did get the Corsa exhaust. He got into the 14's and lower by selling the car and buying an SSEi.
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TB?
Oct 19, 2005 13:23:05 GMT -6
Post by 97abrora on Oct 19, 2005 13:23:05 GMT -6
So he did get into the 14's with an Aurora? I have no plans on selling my car anytime soon. It's my first one! The SSEi only makes 240HP but the car is 300lbs lighter.. and it doesn't look as luxurious as the Aurora.
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TB?
Oct 19, 2005 14:11:33 GMT -6
Post by mission008 on Oct 19, 2005 14:11:33 GMT -6
Taylor ultimately did get the Corsa exhaust. He got into the 14's and lower by selling the car and buying an SSEi. lol ;D
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