Getting SSEi & GTP dynoed Saturday. Guess dyno numbers.
Originally Posted by PontiacDad
ssesc93:
The SSEI and the GTP both have L67 engines, only the GTP is heavily modified.
I based my calculations on the posted quater mile times and guessed the weight and rpm to get the hp and torque numbers.
My numbers are not far off SilverBullets and he'* an engineer, so for me that sounds close? Im an electrician who found an excel spread sheet on a drag website so I cant wait for the real results, Dbkt2 is very knowledable at this so im rooting for him.
The SSEI and the GTP both have L67 engines, only the GTP is heavily modified.
I based my calculations on the posted quater mile times and guessed the weight and rpm to get the hp and torque numbers.
My numbers are not far off SilverBullets and he'* an engineer, so for me that sounds close? Im an electrician who found an excel spread sheet on a drag website so I cant wait for the real results, Dbkt2 is very knowledable at this so im rooting for him.
Thread Starter
Senior Member
True Car Nut
Joined: May 2003
Posts: 3,022
Likes: 1
From: Holt, MI & Lima, OH

Yes that was Wheel Horse Power, and assuming the 2.7" pulley on the GTP? which will you be using?
I only said that because everyone else gave more hp to the GTP. I was showing some love for the B-ville
The newest guess:
OLBlueEyesBonne:
Bonneville: 257 hp 291 lb ft (205.6whp, 232.8wtq.)
Grand Prix: 313 hp 352 lb ft (250.4whp, 281.6wtq.)
I will be posting my guesses before we leave in the morning so we can see how far off I am. If it is raining it is going to be postponed until next weekend, but hopefully the rain will clear up before 8am, it is supposed to but you never know.
If I can change my guess, I'm going to change my GTP hp # from 313 to 328hp if the GTP is a coupe (yeah, I opened my hp calculator up and did some figuring basing the weight with the 1/4 #'*) and if it is a 4 dr 333 hp at the crank.
328 hp 2 dr coupe GTP 40th
333 hp 4 dr sedan GTP 40th
328 hp 2 dr coupe GTP 40th
333 hp 4 dr sedan GTP 40th
2.45" pulley and 104 octane eh?
Well in that case im goin to 367WHP and 345ft-lbs of torque on the GTP.
12 gallons left over? Is your season over......mine is but the snow is about fly anyday now, would have thought there were a few more runs in for you this season?
Well in that case im goin to 367WHP and 345ft-lbs of torque on the GTP.
12 gallons left over? Is your season over......mine is but the snow is about fly anyday now, would have thought there were a few more runs in for you this season?
Thread Starter
Senior Member
True Car Nut
Joined: May 2003
Posts: 3,022
Likes: 1
From: Holt, MI & Lima, OH

2.45" pulley and 104 octane eh?
Well in that case im goin to 367WHP and 345ft-lbs of torque on the GTP.
12 gallons left over? Is your season over......mine is but the snow is about fly anyday now, would have thought there were a few more runs in for you this season?
Well in that case im goin to 367WHP and 345ft-lbs of torque on the GTP.
12 gallons left over? Is your season over......mine is but the snow is about fly anyday now, would have thought there were a few more runs in for you this season?
Our season is definately not over. We will definately be going to the track October 18, and possibly on the 1st if the weather is good. But we can drive to the track (~70 miles away) and make 8 runs on 6 gallons of gas. So we are going to put in 2 gallons or so for the dyno since it is only like 15 miles away, and then if we go on Wednesday we will put in the other 4 and not make as many runs, because if we go Wednesday it will just be to get the car tuned for the 18th. And then the other 6 gallons left over will be for the 18th, and the track sells 104 if we decide we need more, its expensive ($4.75 a gallon), but its really convienient.
If I can change my guess, I'm going to change my GTP hp # from 313 to 328hp if the GTP is a coupe (yeah, I opened my hp calculator up and did some figuring basing the weight with the 1/4 #'*) and if it is a 4 dr 333 hp at the crank.
328 hp 2 dr coupe GTP 40th
333 hp 4 dr sedan GTP 40th
328 hp 2 dr coupe GTP 40th
333 hp 4 dr sedan GTP 40th
So for another total count here we go:
SSEi
OLBlueEyesBonne:
205.6whp, 232.8wtq.
willwren:
220whp, 230 wtq.
repinS:
232whp, 248wtq.
joe
244whp
89BonnieSE89
248whp, 264wtq. +/- 10%
TrueWildMan:
248whp, 264wtq.
2000SilverBullet:
250 whp, 270 wtq.
PontiacDad:
SSEI: 253whp 241wtq.
GTP
willwren:
256whp, 320 wtq.
joe:
264whp
OLBlueEyesBonne:
266.4whp, 281.6wtq.
89BonnieSE89:
272whp, 300wtq. +/- 10%
TrueWildMan:
272whp, 300wtq.
2000SilverBullet:
330 whp, 340 wtq.
PontiacDad:
367whp, 345wtq.
repinS:
The sky'* the limit


