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deekster_caddy
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Name : Derek
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PostSubject: Re: tortuga   tortuga - Page 24 EmptyTue Apr 15, 2014 3:47 pm

Good job with the tuning! What you have had to figure out is not an easy task.
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turtleman
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turtleman


Name : Codith
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PostSubject: Re: tortuga   tortuga - Page 24 EmptyWed Apr 16, 2014 3:17 am

Thanks Deek. Yeah I'm relieved that it's working out so far. Getting to the track again and squeezing an 11 out of this is somewhere in sight now..

I managed to get the throttle body adapter done and installed today. Just need to dress the new throttle body and slap it on tomorrow morning (ok later today technically) so I can take the car to work. Was planning on riding the ninja to work but my room mates dad accidentally took my keys with him and who knows when he'll be back - he's a truck driver. So with the sealer between the blower and adapter curing, I should be ok tomorrow afternoon to drive it.

Some shots I took 'cause I dunno

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blower cleaned and ready for the adapter

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Yeah I made an alignment tool for installing the adapter

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letting the rtv skin a little - you may notice here I machined the part of the adapter off that would be covering up the coolant ports at the bottom which I obviously am not using ever

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I pushed it into place from the alignment tool, tightened the screws, pulled the tool out and wiped off excess sealer - done

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nice alignment

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applied thread sealer and reinstalled nitrous nozzle

The rest later..
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matt270avian
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PostSubject: Re: tortuga   tortuga - Page 24 EmptyWed Apr 16, 2014 9:09 am

turtleman wrote:
Getting to the track again and squeezing an 11 out of this is somewhere in sight now..

You mean 10? lol
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turtleman
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turtleman


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PostSubject: Re: tortuga   tortuga - Page 24 EmptyThu Apr 17, 2014 3:03 pm

matt270avian wrote:

turtleman wrote:
Getting to the track again and squeezing an 11 out of this is somewhere in sight now..


You mean 10? lol

I wish. I believe 11's could totally happen. 10's no way. I think like one GP guy ran a 10.9xx in an M90 build and that was i'm sure missing a lot of weight, slicks, etc.
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AA
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AA


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PostSubject: Re: tortuga   tortuga - Page 24 EmptyThu Apr 17, 2014 4:46 pm

Wow, the progress looks awesome! I understand being realistic about ETs (breaking 11s vs. 10s). While it would seem shaving one second is a consistent challenge, %-wise it gets more difficult the faster you go. Dropping from 12.00 to 11.00 requires a 8.4% improvement in time, while dropping from 11 to 10 secs requires a 9.1% improvement. And I'm sure there are other factors which make it even more of a challenge.

Having said that - 11.X ET is stupid quick for a Riv or any FWD car - or any car period! No need to go any quicker if you still want to drive the car on the street.

_________________
'05 GTO 6.0L • 6-spd • 95k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26

'95 Celica GT 2.2L • 5-spd • 165k miles • 0-60: yes

'98 SC Riviera • 281k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30
3.4" pulley • AL104 plugs • 180º t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails
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EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch

^^^ SOLD ^^^ frown

'70 Ninety-Eight Holiday Coupe 455cid • 116k miles
^^^ SOLD ^^^ frown
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http://www.cardomain.com/ride/657082/4
LARRY70GS
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PostSubject: Re: tortuga   tortuga - Page 24 EmptyThu Apr 17, 2014 5:02 pm

I remember one 97 Regal I saw at Norwalk Buick Race day some years back.  It had a Turbo charged 3800 that made 608 HP.  The 60' times were lazy (2.2), but what a top end charge.  The car ran 11.30's at 130 MPH I think.  Running 11's in a FWD car is challenging.  Good luck.

tortuga - Page 24 TBCRegal2R

_________________
98 Riviera SC3800  All stock except gutted air box.
1970 Buick GS455 Stage1, TSP built 470BBB, 602HP/589TQ
Best MPH, 116.06 MPH, Best ET, 11.54
https://www.youtube.com/watch?v=UHCda-t_Jls
https://www.youtube.com/watch?v=sfT2tEO4XcU
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stan
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PostSubject: Re: tortuga   tortuga - Page 24 EmptyThu Apr 17, 2014 6:25 pm

Wow....WILD.....
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turtleman
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turtleman


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PostSubject: Re: tortuga   tortuga - Page 24 EmptyThu Apr 17, 2014 6:57 pm

Oh haha that's heavy kevys regal. Funny story I almost spilled a cup of my pee on it last weekend in james garage
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matt270avian
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PostSubject: Re: tortuga   tortuga - Page 24 EmptyThu Apr 17, 2014 10:07 pm

turtleman wrote:
Funny story I almost spilled a cup of my pee on it last weekend in james garage

...Alright
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stan
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PostSubject: Re: tortuga   tortuga - Page 24 EmptyThu Apr 17, 2014 10:50 pm

Haha......
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turtleman
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PostSubject: Re: tortuga   tortuga - Page 24 EmptySat Apr 19, 2014 3:45 pm

Oh, the throttle body did get installed and it looks like it's working marvelously.

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This is before I tightened the throttle body on. I did have to situate it on the adapter so that the bores lined up perfect with each-other between the TB and adapter since there's no room for the factory locating roll pins on the adapter.
tortuga - Page 24 20140416_011703
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charlieRobinson
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PostSubject: Re: tortuga   tortuga - Page 24 EmptySat Apr 19, 2014 9:00 pm

It's beautiful!
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Z-type
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Z-type


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PostSubject: Re: tortuga   tortuga - Page 24 EmptySun Apr 20, 2014 8:01 pm

Impressive work as always! I love the shot with the throttle body open and you can see the rotors.
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stan
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PostSubject: Re: tortuga   tortuga - Page 24 EmptySun Apr 20, 2014 8:04 pm

Impressive...... yeah
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deekster_caddy
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PostSubject: Re: tortuga   tortuga - Page 24 EmptyWed Apr 23, 2014 10:09 am

Question for you - have you done anything to the halfshafts? I know a lot of people who break W-body halfshafts when they are playing with slicks. The CV joints can't take it. I don't see any other way to get faster than 11s - it's all about the launch and traction.
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turtleman
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PostSubject: Re: tortuga   tortuga - Page 24 EmptyWed Apr 23, 2014 10:57 am

running stock halfshafts & stock output shaft which is something else I've kinda heard of possibly failing in an odd case but they aren't things I wanted to pursue preemptively
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deekster_caddy
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PostSubject: Re: tortuga   tortuga - Page 24 EmptyWed Apr 23, 2014 4:59 pm

Yup I hear that. I believe the G-bodies got larger (and stronger) CV joints than the W-bodies. Just curious if you had trouble with them. Fingers Crossed!!!
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matt270avian
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PostSubject: Re: tortuga   tortuga - Page 24 EmptyMon May 19, 2014 10:06 am

At any point did you consider an M112/Gen III M90 hybrid?
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turtleman
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PostSubject: Re: tortuga   tortuga - Page 24 EmptyTue May 20, 2014 2:40 pm

matt270avian wrote:
At any point did you consider an M112/Gen III M90 hybrid?

I haven't really seen any compelling evidence to say it's better off than an M90. It'd guess it'd deliver better VE in certain states but if you look at it another way, it's like taking an M112 and giving it a undersized inlet and poor outlet placement. You get the decreased revs and that's where you can gain some efficiency in areas where it'd be starting to heat up a lot as an m90 but it's not all win even with a full on m112. You loose efficiency in lower ranges of boost and rpm where the 90 wouldn't be pushed at all as you're just turning extra mass needlessly. Bottom line IMO is it's only worth the bigger roots if it makes up for itsself when you push it and I'm not convinced the hybrid does that. It's definitely slick but I wanna see something about what it really does for peak power.
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matt270avian
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PostSubject: Re: tortuga   tortuga - Page 24 EmptyWed May 21, 2014 9:25 am

http://www.grandprixforums.net/threads/2103-M112-Hybrid-Questions-from-ClubGP

This guy doesn't go into too much detail about peak power, mainly just boost levels. Maybe we could talk to him and see if he has dyno results or something.
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Karma
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PostSubject: Re: tortuga   tortuga - Page 24 EmptyWed May 21, 2014 12:28 pm

I think that Codith's impressions are bang on. Its a neat exercise, but the gains are documented as limited, especially for work required. If you had a CNC machine, or one of the adapter sleeves, and the snout and rotors, then sure. But to search them out, buy/beg them, just to shoe-horn m112 rotors into the m90 case... I mean, it helps to take a bigger gulp, but adds turbulence, rotating mass, and the last 10% of the rotors do nothing. Time, money, and effort are better spent on nitrous if you want that much power. I see it in the same category as doing it as a different approach. Like bolting on two m62s, or a jagm112, mostly because you have the parts, or just because you can.

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charlieRobinson
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PostSubject: Re: tortuga   tortuga - Page 24 EmptyMon May 26, 2014 9:57 pm

turtleman wrote:

charlieRobinson wrote:
Turtle, where'd you order your piping from?


The intake pipes came from Spectre. I found an online store that actually sells them at a reasonable price.
The part numbers for what I ended up using are 97400 and 97690.

Here's what we got

Revised intake for gen5, IC, northstar/85mm maf

tortuga - Page 24 20121125_161653


I find that no matter what you do, it's really hard to get something that nicely works around the original coolant tank. It really interrupts any straight path from the throttle body to the hole to the fender. I played with a lot of pipes and found the only way I could really do it without putting a second bend and whatnot into the intake was to grind down the bottom leg of the tank a little for clearance and enlarge the hole for the fender toward the front of the car some - maybe half an inch or so. You kinda have to enlarge that anyway to use a 4" pipe and big filter. Overall though, I think this intake is pretty damn good - easier bends than my last one and as few components as possible. And my IATs are very consistent again.


Codith, do you still run with your MAF located further away from the TB? No issues?
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turtleman
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PostSubject: Re: tortuga   tortuga - Page 24 EmptyTue May 27, 2014 7:37 am

Yeah. I didn't note any ill affect when I moved it farther away.
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charlieRobinson
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PostSubject: Re: tortuga   tortuga - Page 24 EmptyTue May 27, 2014 6:04 pm

turtleman wrote:
Yeah. I didn't note any ill affect when I moved it farther away.

Good to hear. You are the only one I have seen with a MAF so far from the TB.
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turtleman
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PostSubject: Re: tortuga   tortuga - Page 24 EmptyTue May 27, 2014 7:11 pm

tortuga - Page 24 Photo2

I had one rule. Go fast in the riv, go slow on the bike. I broke it last saturday and so now I'm a freakin statistic. I was going about 80-85 and the front tire on the bike got squirly all of a sudden. I lost control pretty much immediately and went down before I had time to do anything like slow down. Claim adjuster said the front tire separated which I kinda prognosticated because they were dry-rotted as hell since I got it. I was gonna eventually get around to replacing them. I won't eventually get around to something like that again...

Aside from lots of pain and the new ability to inspect my knee cap without an xray, no bones broken and the helmet did its job superbly and saved my head.
That's my shitty Memorial day weekend  clap

hope your-all's was better
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