Pontiac cool Am N-body 2004 2.2i

Generation: N-body Engine: I4, Petrol Power: 134 hp (136 PS, 100 kW)

Wheel bolt pattern optionsPCD (Pitch one Diameter)Center BoreThread SizeWheel Fasteners
5x115 mm
70.3 mm
M12 x 1.5
Lug nuts
TireRimPCDCenter BorePressure
215/60 R15 93S OEM wheels6Jx15 ET42 5x11570.32.1 bar (31 PSI)Buy
225/50 R16 91H Tuning6.5Jx16 ET42 5x11570.32.3 bar (34 PSI)Buy
225/45 R17 91V Tuning7Jx17 ET45 5x11570.32.5 bar (37 PSI)Buy
What wheels sizes are recommended by the manufacturer

The Pontiac grand Am N-body 2004 2.2i is fitted v 6Jx15 ET42 rims with tires 215/60 R15 93S as standard. Wherein is:

6J — rim width in inches;15" — installation rubber diameter in inches;ET42 — offset of the disc in millimeters.

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Vehicle tire markings 215/60 R15 space deciphered together follows:

215 — PROFILE broad (cross section of the tyre) in millimetres;60 — profile elevation in percentage of that width;R — radial winding of the cord;15 — tire diameter in inches..

In addition, information around its moving capacity and speed parameters — pack index and also speed index — have the right to be used to rubber. The load index is a two or three-digit number, the rate index is suggested by Latin letters, e.g. 93S:

93 — the preferably allowable lot of load the tires can lug 650 kg;S — the maximum allowable automobile speed of 180 km/h.

Using the recommended tires sizes will help to avoid difficulties with control management, safety and also other difficulties. What non-standard sizes deserve to be fitted? Please refer to the table over for possible alternative sizes because that tuning. Although there may be other choices that we have not explained in the table. For example, discs the are broader than the same diameter. Or fit wheels of the exact same width, yet of a bigger diameter, which is rather popular among car owners. The an option of disks is huge, you can find duplicates with the very same parameters, however with a counter size the 1-2 millimeters much more or less. The is not possible to perform all the options.

In this case, the bolt sample is the same for all species of wheels — 5x115. Thus, all discs are an installed on 5 bolts and the distance in between them is specifically one hundred fifteen millimeters. Automobile hub diameter 70.3 mm.

Typical tyre press — 31 PSI (2.1 bar).


Pontiac cool Am N-body 2004 3.4i

Generation: N-body Engine: V6, Petrol Power: 174 hp (177 PS, 130 kW)

Wheel bolt pattern optionsPCD (Pitch circle Diameter)Center BoreThread SizeWheel Fasteners
5x115 mm
70.3 mm
M12 x 1.5
Lug nuts
TireRimPCDCenter BorePressure
225/50 R16 91V OEM wheels6.5Jx16 ET42 5x11570.32.3 bar (34 PSI)Buy
235/45 R17 91V Tuning7.5Jx17 ET45 5x11570.32.5 bar (37 PSI)Buy
245/35 R18 91W Tuning8Jx18 ET45 5x11570.32.6 bar (38 PSI)Buy
What wheels sizes are recommended by the manufacturer

The Pontiac cool Am N-body 2004 3.4i is fitted v 6.5Jx16 ET42 rims with tires 225/50 R16 91V together standard. Wherein is:

6.5J — rim width in inches;16" — fitting rubber diameter in inches;ET42 — counter of the disc in millimeters.

Vehicle tyre markings 225/50 R16 are deciphered together follows:

225 — PROFILE width (cross ar of the tyre) in millimetres;50 — profile elevation in percentage of that is width;R — radial winding that the cord;16 — tyre diameter in inches..

In addition, information around its transporting capacity and speed parameters — pack index and speed table of contents — deserve to be applied to rubber. The fill index is a two or three-digit number, the rate index is suggested by Latin letters, e.g. 91V:

91 — the preferably allowable amount of load the tire can bring 615 kg;V — the preferably allowable automobile speed of 240 km/h.

Using the recommended tires sizes will help to avoid difficulties with steering management, safety and also other difficulties. What non-standard sizes have the right to be fitted? Please describe the table over for possible alternative sizes because that tuning. Back there may be other choices that we have actually not explained in the table. Because that example, discs the are wider than the very same diameter. Or fit wheel of the same width, however of a larger diameter, i beg your pardon is rather popular among car owners. The an option of disks is huge, you have the right to find duplicates with the same parameters, but with a counter size the 1-2 millimeters more or less. The is not feasible to perform all the options.

In this case, the bolt sample is the exact same for all varieties of wheels — 5x115. Thus, all discs are placed on five bolts and also the distance between them is specifically one hundreds fifteen millimeters. Car hub diameter 70.3 mm.

Typical tyre pressure — 34 PSI (2.3 bar).


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Expert advices

When selecting rubber because that a car, you must an initial be guided through the manufacturer"s instructions. Ask you yourself a couple of questions.

On which roads will the vehicle be largely used?Do friend need boosted cross-country ability?Which component of the roadway will be the city roads and also which highway?Will the car carry hefty loads?

Answers to this and similar questions will help determine which tires parameters require special attention.

How to choose the correct automobile wheels for Pontiac grand Am 2004?

3 species of wheel rims:

Stamped (economical price category) — do from a paper of steel by stamping top top the press.Alloy — made by "casting" (more dependable than stamped).Forged (best high quality and more expensive 보다 the vault ones) — are made of light alloys by way of stamping at high temperatures.

The an option depends on financial possibilities. However, it need to be borne in mind the the quality of the roadway surface on which one needs to drive every day likewise has to be taken right into account.

Thus, in instance of hitting a road pit, the stamped disc will bend and also will not damage the tire, and also forged or actors tire can break it. Over there is a opportunity that the molded disc might burst or crack.

It should likewise be provided that repairing "stamping" is cheaper 보다 repairing cast or forged discs. However wheels v high-quality alloy and also forged wheels much less kill the suspension, since it is lighter and also has a more perfect geometry (better balanced).

The very same wheels can be rubbed v tires or not rubbed ~ above the same vehicle — the “wheel alignment” adjustment will assist here.

What is the tyre pressure?

It is the driver"s obligation to constantly monitor tyre pressure. This will avoid standard problems connected with the procedure of the vehicle. Non-nominal pressure values regularly cause:

driving impairments;uneven tread wear.

Often the vehicle owner individually reduces the push in the wheels of his very own vehicle. This to reduce the pack on the suspension, the vehicle is an stimulate of magnitude much easier to "pass" the assorted road irregularities. But it must be detailed that a diminish in pressure even by 0.1 PSI leader to major problems. The main ones include:

higher fuel consumption;fast undertake of excessive tread segments;less maneuverable.

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Equally problematic is the pumped wheel. The central part of the balloon starts to stack quickly. In addition, if the approximately temperature is much more than 140 °F (60 degrees Celsius), the tire deserve to simply explode. I beg your pardon will cause an exit in the oncoming lane.