TE61 vs TA60
- Thread starter streetknight
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Wow! I can't say a disagree with your statements. I'm a big pump gas guy and it always bothers me when people say that they have a low 12/11 sec car when running race gas in a street car. If it's a race car, that's one thing, but fast on race gas in a street car means you might get beat easily on the street when running pump gas.
The fastest I have been was mid 11s @ 122 mph in my 99 GT on straight Mobil 93. I would venture a guess that it will be extremely difficult to get my GN to run mid 11s @ that trap speed on pure 93 octane alone, but I will try.
Some people don't run pump gas. I get 111 at the pump for 3.30 a gallon, so thats what I run.
Your signature says your GT was a 10 second ride. So you run 10's on race gas and mid 11's on pump gas. How is that different than "it always bothers me when people say that they have a low 12/11 sec car when running race gas in a street car. "?
Not trying to flame, just trying to understand.
streetknight
DCVING
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- May 26, 2001
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I appreciate all the info on the turbo selection guys. Didn't try to start anything on the other topic we've gotten on.
Personally I opted for Alky. Mainly cause around my area there is a lot of street racing. I got caught out too many times in my old car with pump gas and 16psi. With the alky, I stay at 22-24 all the time. Could I go faster with race gas and more timing sure.
But I'd rather take the middle of the road and be faster than pump gas without the headache and EXPENSE of Race Gas.
Personally I opted for Alky. Mainly cause around my area there is a lot of street racing. I got caught out too many times in my old car with pump gas and 16psi. With the alky, I stay at 22-24 all the time. Could I go faster with race gas and more timing sure.
But I'd rather take the middle of the road and be faster than pump gas without the headache and EXPENSE of Race Gas.
I agree that anything mixed with 93 octane or lower is no longer "pump" gas. Alky is the way to go in order to be at "full tilt" all the time street or strip.
Ok, now on to the topic of the thread..I haven't tried a TA60, but have tried a TE61 and TE60 back to back, both with 31E exhaust wheels which isn't the norm, but I could tell no difference between them except that the 61 had about a consistant 1 mph more in the 1/8 mile. With both I pulled best of 1.66 60', and ran a single 7.23 pass with the TE60, but could never run a second 7.2x pass, all others were 7.3x. With the TE61 I ran fairly consistant 7.2x passes, best being 7.26, although the single 7.23 pass with the TE60 was faster, it was not consistant and was just a tad leaner than the 7.2x passes of the TE61, so the TE61 still had some tenths to be tuned out.
As far as spool up, both were identical, all launches were at 12#, and the 60' times were mostly identical. Both turbos ran best at about 24-25#.
With "pump" gas however, it did seem that the TE61 could boost to 20# without any KR, while the TE60 did have just a degree or so, so maybe the output charge of the TE61 is a bit cooler.
My vote is TE61 just because it is a tad larger wheel for better top end and cooler charge possibly, other than that, no real differences. Since the TA60 is basically the same as a TE61 just with a stock appearing inlet, I would think the result would be near the same as I observed.
Ok, now on to the topic of the thread..I haven't tried a TA60, but have tried a TE61 and TE60 back to back, both with 31E exhaust wheels which isn't the norm, but I could tell no difference between them except that the 61 had about a consistant 1 mph more in the 1/8 mile. With both I pulled best of 1.66 60', and ran a single 7.23 pass with the TE60, but could never run a second 7.2x pass, all others were 7.3x. With the TE61 I ran fairly consistant 7.2x passes, best being 7.26, although the single 7.23 pass with the TE60 was faster, it was not consistant and was just a tad leaner than the 7.2x passes of the TE61, so the TE61 still had some tenths to be tuned out.
As far as spool up, both were identical, all launches were at 12#, and the 60' times were mostly identical. Both turbos ran best at about 24-25#.
With "pump" gas however, it did seem that the TE61 could boost to 20# without any KR, while the TE60 did have just a degree or so, so maybe the output charge of the TE61 is a bit cooler.
My vote is TE61 just because it is a tad larger wheel for better top end and cooler charge possibly, other than that, no real differences. Since the TA60 is basically the same as a TE61 just with a stock appearing inlet, I would think the result would be near the same as I observed.
Then why do you quote 1/8 mile times?
And do this... drive the car 600 miles.. run a 10.7 without making fuel changes.. drive home. Thats what Richie did at Reynolds a month ago. So while fill-ups are happening at various service stations.. that car is always ready to run.
Pump gas with race gas ="Mix" So when your more than 200 miles away from home... your easy pickings...
Racegas is like Superman to kryptonite... Once you leave your area... you lose your powers.
I dont preach becuase I sell, I preach becuase i've been on the other side of the fuel swapping/mixing issue. It gets old really fast.
Marc87gn, its a good threshold to make a GN run 122 in the 1/4 on 93 without any cooling additives.
trading t/a
I'm Angry!!!!!
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I vote for a CPT-65. Uses the 61mm wheel on a large shaft turbo with the large cover will make more power than the 61 or 60 and was quoted a higher hp potential then even the new gt-61
I couldn't imagine how much 111 would cost here since 93 Octane is $2.25/gal.
Your other question is valid. My GT ran 10s on slicks, but mid 11s on Nitto D/Rs using pump gas. This was also with no transbrake and leaving without any boost.
I should have added with slicks and race gas to the statement I made about people running low 12s/11s in a street car. That was my fault.
I liked the fact that I could be anywhere, fill up at the station, go to the track & run 11s @ 120+. That is what I want with the GN. It will be more work because of the weight and smaller displacement engine, but I'm up for the challenge.
Keith gave me his proven low 11 second combo and im VERY pleased.Heres the rundown on it:
100% stock long block with springs
ta61
009 inj
adj fp reg
Warlboro 340
hotwire kit
power plate
THDP
exhaust
Red A chips
and lots of boost 30+ psi
Thats if you already have a good running TR.I added:
Razors alky kit
ATR 3" single shot
Mease 24 row IC
and I use turbotweak chips instead of Red A
Your trans wont live long behind all the new found power,thats when id swap convertors(IMO the stocker is to laggy but I also had stock exhaust)
I added a Pats 3200-3400 stall and a built tranny and this thing is a monster
Cant wait to put a race chip and race gas in the car and run 30+psi to see what this baby will do
At 24 psi with the stock exhaust it ran like a raped ape in my 4k lb GN.Just wouldnt blow the tires away.Keith feel happy to throw anything in that I missed
And my TA61 has the Garret .63 housing,ive heard the Precision is a little laggy.I do 90% 1/8th since that is what is near my house ...so I qoute my best 1/8th mile.
if I did my best 1/8th on a 1/4 run I would quote the 1/4 ET
not sure what that has do do with anything.
I can run fast enough on pump where I am NEVER "easy pickings"
Originally posted by broke1
Keith feel happy to throw anything in that I missed
We've gone as fast as 10.53 @ 129mph with a Ta61/Garret .63 ex. housing with a full weight street car @ high boost. I've also used it on quite a few very low 11-sec. stock motor cars, some of them with the stock D-5.
The Precision .63 housing will have more lag on any given turbo, as will the larger a/r housings.
K.
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