Anybody wanna guess my combo's time....?

[Blazer406]

I am putting a combo together now and believe I have really low 11 second potential... maybe dip into the 10's...... but at 26+ psi......

I want to know what it will do at 16# (or whatever I can get away with on pump gas w/o alky)....

Combo.....

Stock long block...
Stock intercooler
TE61 turbo w/ .63 Garrett housing
Vigilante "0" pump 5-disk lock-up converter (3200-3400?)
60# high Z's
340 hot wired pump
adjustable regulator
TH 3" SS DP w/test pipe
Big mouth cold air kit and 3-1/2" MAF pipe and LS-1 MAF sensor
Extreme Extender chip
pump gas tune

This is how I will have to enjoy it until I can buy the alky kit... and probably the precision stock location intercooler......


Any guesses?

I know the stock intercooler is holding me back..... but I am on a big time budget (I am about to get it painted)...... How much would I pick up (even at pump gas boost levels assuming no alky) by putting the dutt neck on the stocker..... (not the intercooler and a half)....???

All this is in a full weight daily driver capable hardtop '87GN with 225#+ driver

[ILUVBOOST]

Its going to be a bit of a dog without more boost or alky...FYI I ran a 12.9@106- 2.25 60' on crappy street tires with GT61, 18* street chip, stock longblock, Razors alky and 21# boost. Without more boost, no alky, and running a street chip I would say 13.4-13.9 with your combo.

[salvageV6]

13.4 with a decent 60ft.

The intercooler ain't holding you back it's the octane.

Try some 100 unleaded and 20psi.

What timing is in your street chip?

[Blazer406]

Originally Posted by salvageV6

13.4 with a decent 60ft.

The intercooler ain't holding you back it's the octane.

Try some 100 unleaded and 20psi.

What timing is in your street chip?

I am ordering the injectors, chip, MAF, cold air, and MAF pipe this morning......so I don't know the timing. I plan on driving this car to work (with my 205k mile '97 Silverado as back-up if something should go down) daily. Currently I drive about 85 miles round trip...... ...... but the trip to work will be more interesting driving the GN.....

I guess at some point $$$$.... I want a boost controller that I can have two boost settings.....the first setting..... will be daily driver... no alky needed setting..... flip the switch to the second setting...... 26+ psi.... and alky..... (I realize I will have to sneak up on the tune it takes to run 26 psi).... but I will take baby steps until I get it dialed in using my DS .

[XLR8]

Stock heads, smallish turbo, stock intercooler, low boost and street tires = dissapointment - around 13's.
Same car with sticky tires & high boost = 11's with tuning.

[Blazer406]

Originally Posted by XLR8

Stock heads, smallish turbo, stock intercooler, low boost and street tires = dissapointment - around 13's.
Same car with sticky tires & high boost = 11's with tuning.

I do have sticky tires..... I hope to be able to leave hard..... 60' better be 1.50's with that converter... on sticky tires....... or I am not gonna be happy.... I hope to be able to hook an 8-10 psi launch.... but only time will tell.... and trips to the track of course......

[NEARING]

Originally Posted by Blazer406

I know the stock intercooler is holding me back..... but I am on a big time budget (I am about to get it painted)...... How much would I pick up (even at pump gas boost levels assuming no alky) by putting the dutt neck on the stocker..... (not the intercooler and a half)....???

All this is in a full weight daily driver capable hardtop '87GN with 225#+ driver

I picked up 2-3 mph with a dutt neck and about 1/4 sec, but this was with a stock turbo car and good gas. Proably see the same with yours.

Without alky/racegas that stock innercooler is going to really keep the car down.

[salvageV6]

The BSTC works as a good controller.

Summer and winter boost at the turn of a knob. Allows conservative 3rd gear scaling of boost if you want to use it.

Get the alky. kit and tune it for 24 or so safe street psi., it's a good idea to test/run the alky. all the time you drive the car, ie. daily, first test button you push when getting out on the surface roads then you simply forget it's their until it's needed.

You will be close to 11 second mph and be happy it's always available.

The Dutt. neck will help a lot it's a good mod. if you are on a budget.

3200 stall lockup for the street should work fine with the 61.

Just my .02.

I'd tell you to forget the paint for a daily driver but I'm sure you wouldn't listen.

[BLACK6PACK]

No need for 2 setting on a boost controller if you're running alky. Get an alky chip, an alky kit, tune it until you can run it at about 24-25 psi without knock and leave it like that. My car runs 12.0 @115 (not really tuned) on 93 and alky in street trim. I haven't adjusted the boost in 2 years.

[JDSfastGN]

There is no reason it can't go mid 12s with a good 60 ft. It may not run that quick right away but it will have potential for 12s on pump and 16 psi. Race gas, high boost and timing and mid 11s or maybe lower on a cool night are possible

[Drip Pan]

Blazer,
Unless you have prior experience with these cars that we've missed, I would caution you not to set your expectations too high at the outset. I would recommend getting the car running in tip-top shape in its current configuration FIRST rather than throwing parts at it then having disappontment set in when you try to set the world on fire, and expectations of "low 11 second....maybe dip into the 10's" on "ultra kill mode" don't materialize. Baby steps, Young Grasshopper...

[UNGN]

The stock intercooler is not holding you back. The street chip, 16 psi and pump gas with a stock longblock is holding you back. If you run quicker than 13.3@102, even with sticky tires I will be shocked, and you should be exstatic.

[Blazer406]

Originally Posted by Drip Pan

Blazer,
Unless you have prior experience with these cars that we've missed, I would caution you not to set your expectations too high at the outset.

I have some minimal experience.... I have been following these cars since 94 or so. I have numerous friends who have had or still do have one or more cars. I had one friend that had 10 of these cars at one time. Currently I know of 6 cars from personal friends that are far from stock.... all stock block cars... the fastest of them has run mid to high 6's in the eighth with an OOOOOOLD Easton (Eaton)?? FMIC and a TE45A turbo with GN1's I think along with complementing parts. I also had a friend with a stage II car back in the mid 90's who went low 9's (I think) in the quarter here at a local track. I have only had a part in tinkering with one or two of them...... but I learn alot from reading and listening.... and going to the track. I also went to the GS Nats back in 95 or so and saw the original Tweaked car..... I did alot of listening and learning.... as well as a subscriber to the GS Extra for several years......

I also am coming from a fully loaded n/a '89 S10 Blazer (350/700R4) that was a daily driver that ran a best of 13.13@102.45 with a 1.81 60' time on 26" MT ET Streets. On that pass it went 8.33 @ 81 mph in the eighth. I probably put at least 250 quarter mile passes on that truck over a 10 year period..... so I have some sort of idea how hard a launch it will take to dip into the 12's....

Relavent experience.... yes... probably.....

Virgin..... no....

Still have a lot to learn though......

Oh... I am a Mechanical Engineer too.... that loves drag racing......

did I mention I love turbo cars...... drag racing....???

I have a friend with a F@rd Mustang with a 440+ CI aluminum small block with Yates heads that has a 106mm turbo and 160# injectors.... Kooks headers 5" DP...... ice water intercooler..... ect.... has been a best 4.24 @ 170 mph in the eighth..... with a 1.0 60' I think.... He does hold the track record at a local 1/8 mile strip.....

did I mention I like turbo cars.....??

Originally Posted by UNGN

The stock intercooler is not holding you back. The street chip, 16 psi and pump gas with a stock longblock is holding you back. If you run quicker than 13.3@102, even with sticky tires I will be shocked, and you should be exstatic.

I will take it as a challenge then.... to go 12's on pump gas w/o alky..... Hopefully I can pull of a giant 60' time and get there.... I know HP is limited on the top end ..... but you can make up more ET on the beginning anyway.....

[pontiac69fb]

Blazer why are you so upset you make a thread asking people what they think your car will run. Then when they give their opinions and best guesses you are angry? Are you just dissapointed because you hoped for 12s with 16 psi and nobody validated your assumption? Here is my take on it however I'm no mechanical engineer, and I'm not as educated as any of these guys on Turbo Buick. I read something about turbo efficiency ranges, I don't fully understand how exactly turbos work like you do, but wouldn't with a stock longblack intake and everything, the stock turbo put out just as much power if not more at 15-16 psi. I thought the bigger turbos don't start really doing much until you get into the high boost 22psi +. So if your only running 16 psi with that current set up your 61 turbo and everything, you can maybe view it as running 16 psi with the stock turbo that just probably doesn't spool as quick. I'm kinda ignorant when it comes to that stuff so correct me if I'm wrong my feelings won't be hurt, but I think the guys are right about not seeing great times until you really get into the high boost levels, or you may see 12s at 16psi if you had ported heads.

[Blazer406]

Originally Posted by pontiac69fb

Blazer why are you so upset you make a thread asking people what they think your car will run. Then when they give their opinions and best guesses you are angry? high boost levels, or you may see 12s at

I not in the least bit mad..... I just want to do as well as I can. I am having more fun now with my daily driver than I ever have.... and I only started driving it daily this past Tuesday. As far as the stock turbo vs the TE 61 @ 16 psi......the stocker will spool faster.... but when I put the Vigilante "0" pump converter combined with the TE61 turbo....... the stall converter will let me build boost probably comparbly quick..... and..... the stock turbo will generate more heat building that 16 psi than the TE 61...... so at that same boost level..... the 61 should provide a cooler 16 psi than the stocker.....which has more mass than a 16 psi warmer air charge and theoretically if it is a cooler charge..... will have the potential to make more power..... probably not gonna make that much difference.... but we will see......I am not staying with the stocker.... because I am bolting all the other complementing parts to make a decent combination. I hope it will run 7.20's in the eighth which is a mid 11 in the quarter....on 24-26 psi boost...... after many trips to the track.... and alot of tuning..... I mentioned low 11's and high 10's because I have talked thru email to numerous members on this board running almost identical combos..... and one of them (with ported irons and matching intake and a different cam) has run 6.7's @ a little over 100 mph in the eighth which is definately in the 10's with the same turbo. At some point I will port my heads and intake and like the "potential" to dip into the 10's..... I understand this is not the norm.... but there is a "potential". Most stock long block people I have talked to running nearly the same combo..... are running around 7.20's and 11.50's.... I'd be real happy with an 11 second slip....

I was asking opinions on the 16 psi combo.... because I might be a few months before I can purchase the alky kit.... and start to tune... Just thought I would get peoples opinions..... cause I am definately going to the track before the alky kit goes on.......

Mad..... hell no..... I'm tickled to be finally tinkering with one of these cars after following them for over 10 years.......

[UNGN]

Put in one or two gallons or race gas and put a race chip in there (at 16 psi) and 12's will be easy. Street chips are designed to suck when they shift into 3rd to keep knock at bay. Low boost + low timing = low mph and slow ET's.

You'll spend 10 bucks to race, what's another $6 for 2 gallons of race gas? (I know race gas is $6 a gallon but for every $6 gallon of race gas, you get a $3 gallon of regular gas for free)